frizzled-1 [Homo sapiens]
Protein Classification
frizzled family protein; olfactory receptor( domain architecture ID 11575600)
frizzled family protein similar to the ten frizzleds (Fzd1-10) and smoothened (Smo), which are involved in transmitting the signals of Wnts and hedgehog proteins and are seven transmembrane-spanning proteins that constitute an unconventional class of G protein-coupled receptors; contains an N-terminal extracellular cysteine-rich domain (CRD) associated with their role in binding to Wnt ligands; olfactory receptor plays a central role in olfaction or the sense of smell, similar to human family 6 olfactory receptors; belongs to the class A rhodopsin-like family of G protein-coupled receptors; binding of an odorant to the olfactory receptor induces a conformational change that leads to the activation of the olfactory-specific G protein (Golf)
List of domain hits
| Name | Accession | Description | Interval | E-value | ||||||
| 7tmF_FZD1 | cd15247 | class F mammalian frizzled subfamily 1, member of 7-transmembrane G protein-coupled receptors; ... |
299-646 | 0e+00 | ||||||
class F mammalian frizzled subfamily 1, member of 7-transmembrane G protein-coupled receptors; This group includes subfamily 1 of the frizzled (FZD) family of seven transmembrane-spanning proteins, which constitute a novel and separate class of G-protein coupled receptors. This class F protein family consists of 10 isoforms (FZD1-10) in mammals. The FZDs are activated by the wingless/int-1 (WNT) family of secreted lipoglycoproteins and preferentially couple to stimulatory G proteins of the Gs family, which activate adenylate cyclase, but can also couple to G proteins of the Gi/Gq families. In the WNT/beta-catenin signaling pathway, the WNT ligand binds to FZD and a lipoprotein receptor-related protein (LRP) co-receptor. This leads to the stabilization and translocation of beta-catenin to the nucleus, where it induces the activation of TCF/LEF family transcription factors. The conserved cytoplasmic motif of FZD, Lys-Thr-X-X-X-Trp, is required for activation of the WNT/beta-catenin pathway, and for membrane localization and phosphorylation of Dsh (dishevelled) protein, a key component of the WNT pathway that relays the WNT signals from the activated receptor to downstream effector proteins. The WNT pathway plays a critical role in many developmental processes, such as cell-fate determination, cell proliferation, neural patterning, stem cell renewal, tissue homeostasis and repair, and tumorigenesis, among many others. : Pssm-ID: 320375 Cd Length: 341 Bit Score: 694.48 E-value: 0e+00
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| CRD_FZ1 | cd07465 | Cysteine-rich Wnt-binding domain (CRD) of the frizzled 1 (Fz1) receptor; The cysteine-rich ... |
112-238 | 6.08e-90 | ||||||
Cysteine-rich Wnt-binding domain (CRD) of the frizzled 1 (Fz1) receptor; The cysteine-rich domain (CRD) is an essential extracellular portion of the frizzled 1 (Fz1) receptor, and is required for binding Wnt proteins, which play fundamental roles in many aspects of early development, such as cell and tissue polarity, neural synapse formation, and the regulation of proliferation. Fz proteins serve as Wnt receptors for multiple signal transduction pathways, including both beta-catenin dependent and -independent cellular signaling, as well as the planar cell polarity pathway and Ca(2+) modulating signaling pathway. CRD containing Fzs have been found in diverse species from amoebas to mammals. 10 different frizzled proteins are found in vertebrata. : Pssm-ID: 143574 Cd Length: 127 Bit Score: 275.01 E-value: 6.08e-90
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| Name | Accession | Description | Interval | E-value | ||||||
| 7tmF_FZD1 | cd15247 | class F mammalian frizzled subfamily 1, member of 7-transmembrane G protein-coupled receptors; ... |
299-646 | 0e+00 | ||||||
class F mammalian frizzled subfamily 1, member of 7-transmembrane G protein-coupled receptors; This group includes subfamily 1 of the frizzled (FZD) family of seven transmembrane-spanning proteins, which constitute a novel and separate class of G-protein coupled receptors. This class F protein family consists of 10 isoforms (FZD1-10) in mammals. The FZDs are activated by the wingless/int-1 (WNT) family of secreted lipoglycoproteins and preferentially couple to stimulatory G proteins of the Gs family, which activate adenylate cyclase, but can also couple to G proteins of the Gi/Gq families. In the WNT/beta-catenin signaling pathway, the WNT ligand binds to FZD and a lipoprotein receptor-related protein (LRP) co-receptor. This leads to the stabilization and translocation of beta-catenin to the nucleus, where it induces the activation of TCF/LEF family transcription factors. The conserved cytoplasmic motif of FZD, Lys-Thr-X-X-X-Trp, is required for activation of the WNT/beta-catenin pathway, and for membrane localization and phosphorylation of Dsh (dishevelled) protein, a key component of the WNT pathway that relays the WNT signals from the activated receptor to downstream effector proteins. The WNT pathway plays a critical role in many developmental processes, such as cell-fate determination, cell proliferation, neural patterning, stem cell renewal, tissue homeostasis and repair, and tumorigenesis, among many others. Pssm-ID: 320375 Cd Length: 341 Bit Score: 694.48 E-value: 0e+00
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| Frizzled | pfam01534 | Frizzled/Smoothened family membrane region; This family contains the membrane spanning region ... |
310-637 | 0e+00 | ||||||
Frizzled/Smoothened family membrane region; This family contains the membrane spanning region of frizzled and smoothened receptors. This membrane region is predicted to contain seven transmembrane alpha helices. Proteins related to Drosophila frizzled are receptors for Wnt (mediating the beta-catenin signalling pathway), but also the planar cell polarity (PCP) pathway and the Wnt/calcium pathway. The predominantly alpha-helical Cys-rich ligand-binding region (CRD) of Frizzled is both necessary and sufficient for Wnt binding. The smoothened receptor mediates hedgehog signalling. Pssm-ID: 460242 Cd Length: 321 Bit Score: 564.54 E-value: 0e+00
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| CRD_FZ1 | cd07465 | Cysteine-rich Wnt-binding domain (CRD) of the frizzled 1 (Fz1) receptor; The cysteine-rich ... |
112-238 | 6.08e-90 | ||||||
Cysteine-rich Wnt-binding domain (CRD) of the frizzled 1 (Fz1) receptor; The cysteine-rich domain (CRD) is an essential extracellular portion of the frizzled 1 (Fz1) receptor, and is required for binding Wnt proteins, which play fundamental roles in many aspects of early development, such as cell and tissue polarity, neural synapse formation, and the regulation of proliferation. Fz proteins serve as Wnt receptors for multiple signal transduction pathways, including both beta-catenin dependent and -independent cellular signaling, as well as the planar cell polarity pathway and Ca(2+) modulating signaling pathway. CRD containing Fzs have been found in diverse species from amoebas to mammals. 10 different frizzled proteins are found in vertebrata. Pssm-ID: 143574 Cd Length: 127 Bit Score: 275.01 E-value: 6.08e-90
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| FRI | smart00063 | Frizzled; Drosophila melanogaster frizzled mediates signalling that polarises a precursor cell ... |
116-229 | 1.20e-56 | ||||||
Frizzled; Drosophila melanogaster frizzled mediates signalling that polarises a precursor cell along the anteroposterior axis. Homologues of the N-terminal region of frizzled exist either as transmembrane or secreted molecules. Frizzled homologues are reported to be receptors for the Wnt growth factors. (Not yet in MEDLINE: the FRI domain occurs in several receptor tyrosine kinases [Xu, Y.K. and Nusse, Curr. Biol. 8 R405-R406 (1998); Masiakowski, P. and Yanopoulos, G.D., Curr. Biol. 8, R407 (1998)]. Pssm-ID: 214498 Cd Length: 113 Bit Score: 187.13 E-value: 1.20e-56
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| Fz | pfam01392 | Fz domain; Also known as the CRD (cysteine rich domain), the C6 box in MuSK receptor. This ... |
116-221 | 4.63e-42 | ||||||
Fz domain; Also known as the CRD (cysteine rich domain), the C6 box in MuSK receptor. This domain of unknown function has been independently identified by several groups. The domain contains 10 conserved cysteines. Pssm-ID: 460190 Cd Length: 116 Bit Score: 147.72 E-value: 4.63e-42
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| Name | Accession | Description | Interval | E-value | ||||||
| 7tmF_FZD1 | cd15247 | class F mammalian frizzled subfamily 1, member of 7-transmembrane G protein-coupled receptors; ... |
299-646 | 0e+00 | ||||||
class F mammalian frizzled subfamily 1, member of 7-transmembrane G protein-coupled receptors; This group includes subfamily 1 of the frizzled (FZD) family of seven transmembrane-spanning proteins, which constitute a novel and separate class of G-protein coupled receptors. This class F protein family consists of 10 isoforms (FZD1-10) in mammals. The FZDs are activated by the wingless/int-1 (WNT) family of secreted lipoglycoproteins and preferentially couple to stimulatory G proteins of the Gs family, which activate adenylate cyclase, but can also couple to G proteins of the Gi/Gq families. In the WNT/beta-catenin signaling pathway, the WNT ligand binds to FZD and a lipoprotein receptor-related protein (LRP) co-receptor. This leads to the stabilization and translocation of beta-catenin to the nucleus, where it induces the activation of TCF/LEF family transcription factors. The conserved cytoplasmic motif of FZD, Lys-Thr-X-X-X-Trp, is required for activation of the WNT/beta-catenin pathway, and for membrane localization and phosphorylation of Dsh (dishevelled) protein, a key component of the WNT pathway that relays the WNT signals from the activated receptor to downstream effector proteins. The WNT pathway plays a critical role in many developmental processes, such as cell-fate determination, cell proliferation, neural patterning, stem cell renewal, tissue homeostasis and repair, and tumorigenesis, among many others. Pssm-ID: 320375 Cd Length: 341 Bit Score: 694.48 E-value: 0e+00
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| 7tmF_FZD1_2_7-like | cd15034 | class F frizzled subfamilies 1, 2 and 7; member of 7-transmembrane G protein-coupled receptors; ... |
309-635 | 0e+00 | ||||||
class F frizzled subfamilies 1, 2 and 7; member of 7-transmembrane G protein-coupled receptors; This group includes subfamilies 1, 2 and 7 of the frizzled (FZD) family of seven transmembrane-spanning proteins, which constitute a novel and separate class of G-protein coupled receptors, as well as their closely related proteins. This class F protein family consists of 10 isoforms (FZD1-10) in mammals. The FZDs are activated by the wingless/int-1 (WNT) family of secreted lipoglycoproteins and preferentially couple to stimulatory G proteins of the Gs family, which activate adenylate cyclase, but can also couple to G proteins of the Gi/Gq families. In the WNT/beta-catenin signaling pathway, the WNT ligand binds to FZD and a lipoprotein receptor-related protein (LRP) co-receptor. This leads to the stabilization and translocation of beta-catenin to the nucleus, where it induces the activation of TCF/LEF family transcription factors. The conserved cytoplasmic motif of FZD, Lys-Thr-X-X-X-Trp, is required for activation of the WNT/beta-catenin pathway, and for membrane localization and phosphorylation of Dsh (dishevelled) protein, a key component of the WNT pathway that relays the WNT signals from the activated receptor to downstream effector proteins. The WNT pathway plays a critical role in many developmental processes, such as cell-fate determination, cell proliferation, neural patterning, stem cell renewal, tissue homeostasis and repair, and tumorigenesis, among many others. Pssm-ID: 320162 Cd Length: 322 Bit Score: 665.58 E-value: 0e+00
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| 7tmF_FZD7 | cd15246 | class F frizzled subfamily 7, member of 7-transmembrane G protein-coupled receptors; This ... |
309-646 | 0e+00 | ||||||
class F frizzled subfamily 7, member of 7-transmembrane G protein-coupled receptors; This group includes subfamily 7 of the frizzled (FZD) family of seven transmembrane-spanning proteins, which constitute a novel and separate class of G-protein coupled receptors. This class F protein family consists of 10 isoforms (FZD1-10) in mammals. The FZDs are activated by the wingless/int-1 (WNT) family of secreted lipoglycoproteins and preferentially couple to stimulatory G proteins of the Gs family, which activate adenylate cyclase, but can also couple to G proteins of the Gi/Gq families. In the WNT/beta-catenin signaling pathway, the WNT ligand binds to FZD and a lipoprotein receptor-related protein (LRP) co-receptor. This leads to the stabilization and translocation of beta-catenin to the nucleus, where it induces the activation of TCF/LEF family transcription factors. The conserved cytoplasmic motif of FZD, Lys-Thr-X-X-X-Trp, is required for activation of the WNT/beta-catenin pathway, and for membrane localization and phosphorylation of Dsh (dishevelled) protein, a key component of the WNT pathway that relays the WNT signals from the activated receptor to downstream effector proteins. The WNT pathway plays a critical role in many developmental processes, such as cell-fate determination, cell proliferation, neural patterning, stem cell renewal, tissue homeostasis and repair, and tumorigenesis, among many others Pssm-ID: 320374 Cd Length: 331 Bit Score: 640.53 E-value: 0e+00
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| 7tmF_FZD2 | cd15245 | class F frizzled subfamily 2, member of 7-transmembrane G protein-coupled receptors; This ... |
309-645 | 0e+00 | ||||||
class F frizzled subfamily 2, member of 7-transmembrane G protein-coupled receptors; This group includes subfamily 2 of the frizzled (FZD) family of seven transmembrane-spanning proteins, which constitute a novel and separate class of G-protein coupled receptors. This class F protein family consists of 10 isoforms (FZD1-10) in mammals. The FZDs are activated by the wingless/int-1 (WNT) family of secreted lipoglycoproteins and preferentially couple to stimulatory G proteins of the Gs family, which activate adenylate cyclase, but can also couple to G proteins of the Gi/Gq families. In the WNT/beta-catenin signaling pathway, the WNT ligand binds to FZD and a lipoprotein receptor-related protein (LRP) co-receptor. This leads to the stabilization and translocation of beta-catenin to the nucleus, where it induces the activation of TCF/LEF family transcription factors. The conserved cytoplasmic motif of FZD, Lys-Thr-X-X-X-Trp, is required for activation of the WNT/beta-catenin pathway, and for membrane localization and phosphorylation of Dsh (dishevelled) protein, a key component of the WNT pathway that relays the WNT signals from the activated receptor to downstream effector proteins. The WNT pathway plays a critical role in many developmental processes, such as cell-fate determination, cell proliferation, neural patterning, stem cell renewal, tissue homeostasis and repair, and tumorigenesis, among many others. Pssm-ID: 320373 Cd Length: 330 Bit Score: 621.27 E-value: 0e+00
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| Frizzled | pfam01534 | Frizzled/Smoothened family membrane region; This family contains the membrane spanning region ... |
310-637 | 0e+00 | ||||||
Frizzled/Smoothened family membrane region; This family contains the membrane spanning region of frizzled and smoothened receptors. This membrane region is predicted to contain seven transmembrane alpha helices. Proteins related to Drosophila frizzled are receptors for Wnt (mediating the beta-catenin signalling pathway), but also the planar cell polarity (PCP) pathway and the Wnt/calcium pathway. The predominantly alpha-helical Cys-rich ligand-binding region (CRD) of Frizzled is both necessary and sufficient for Wnt binding. The smoothened receptor mediates hedgehog signalling. Pssm-ID: 460242 Cd Length: 321 Bit Score: 564.54 E-value: 0e+00
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| 7tmF_FZD1_insect | cd15248 | class F insect frizzled subfamily 1, member of 7-transmembrane G protein-coupled receptors; ... |
309-637 | 1.15e-178 | ||||||
class F insect frizzled subfamily 1, member of 7-transmembrane G protein-coupled receptors; This group includes subfamily 1 of the frizzled (FZD) family of seven transmembrane-spanning proteins, which constitute a novel and separate class of G-protein coupled receptors, found in insects such as Drosophila melanogaster. This class F protein family consists of 10 isoforms (FZD1-10) in mammals. The FZDs are activated by the wingless/int-1 (WNT) family of secreted lipoglycoproteins and preferentially couple to stimulatory G proteins of the Gs family, which activate adenylate cyclase, but can also couple to G proteins of the Gi/Gq families. In the WNT/beta-catenin signaling pathway, the WNT ligand binds to FZD and a lipoprotein receptor-related protein (LRP) co-receptor. This leads to the stabilization and translocation of beta-catenin to the nucleus, where it induces the activation of TCF/LEF family transcription factors. The conserved cytoplasmic motif of FZD, Lys-Thr-X-X-X-Trp, is required for activation of the WNT/beta-catenin pathway, and for membrane localization and phosphorylation of Dsh (dishevelled) protein, a key component of the WNT pathway that relays the WNT signals from the activated receptor to downstream effector proteins. The WNT pathway plays a critical role in many developmental processes, such as cell-fate determination, cell proliferation, neural patterning, stem cell renewal, tissue homeostasis and repair, and tumorigenesis, among many others. Pssm-ID: 320376 Cd Length: 332 Bit Score: 510.13 E-value: 1.15e-178
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| 7tmF_FZD5_FZD8-like | cd15035 | class F frizzled subfamilies 5, 8 and related proteins; member of 7-transmembrane G ... |
310-634 | 9.07e-166 | ||||||
class F frizzled subfamilies 5, 8 and related proteins; member of 7-transmembrane G protein-coupled receptors; This group includes subfamilies 5 and 8 of the frizzled (FZD) family of seven transmembrane-spanning proteins, which constitute a novel and separate class of GPCRs, as well as their closely related proteins. This class F protein family consists of 10 isoforms (FZD1-10) in mammals. The FZDs are activated by the wingless/int-1 (WNT) family of secreted lipoglycoproteins and preferentially couple to stimulatory G proteins of the Gs family, which activate adenylate cyclase, but can also couple to G proteins of the Gi/Gq families. In the WNT/beta-catenin signaling pathway, the WNT ligand binds to FZD and a lipoprotein receptor-related protein (LRP) co-receptor. This leads to the stabilization and translocation of beta-catenin to the nucleus, where it induces the activation of TCF/LEF family transcription factors. The conserved cytoplasmic motif of FZD, Lys-Thr-X-X-X-Trp, is required for activation of the WNT/beta-catenin pathway, and for membrane localization and phosphorylation of Dsh (dishevelled) protein, a key component of the WNT pathway that relays the WNT signals from the activated receptor to downstream effector proteins. The WNT pathway plays a critical role in many developmental processes, such as cell-fate determination, cell proliferation, neural patterning, stem cell renewal, tissue homeostasis and repair, and tumorigenesis, among many others. Pssm-ID: 320163 Cd Length: 307 Bit Score: 476.00 E-value: 9.07e-166
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| 7tmF_Frizzled_SMO | cd13951 | class F frizzled/smoothened family, member of the 7-transmembrane G protein-coupled receptor ... |
309-634 | 4.85e-155 | ||||||
class F frizzled/smoothened family, member of the 7-transmembrane G protein-coupled receptor superfamily; The class F G protein-coupled receptors includes the frizzled (FZD) family of seven-transmembrane proteins consisting of 10 isoforms (FZD1-10) in mammals. The FZDs are activated by the wingless/int-1 (WNT) family of secreted lipoglycoproteins and preferentially couple to stimulatory G proteins of the Gs family, which activate adenylate cyclase, but can also couple to G proteins of the Gi/Gq families. In the WNT/beta-catenin signaling pathway, the WNT ligand binds to FZD and a lipoprotein receptor-related protein (LRP) co-receptor. This leads to the stabilization and translocation of beta-catenin to the nucleus, where it induces the activation of TCF/LEF family transcription factors. The conserved cytoplasmic motif of FZD, Lys-Thr-X-X-X-Trp, is required for activation of the WNT/beta-catenin pathway, and for membrane localization and phosphorylation of Dsh (dishevelled) protein, a key component of the WNT pathway that relays the WNT signals from the activated receptor to downstream effector proteins. Also included in the class F family is the closely related smoothened (SMO), which is a transmembrane G protein-coupled receptor that acts as the transducer of the hedgehog (HH) signaling pathway. SMO is activated by the hedgehog (HH) family of proteins acting on the 12-transmembrane domain receptor patched (PTCH), which constitutively inhibits SMO. Thus, in the absence of HH proteins, PTCH inhibits SMO signaling. On the other hand, binding of HH to the PTCH receptor activates its internalization and degradation, thereby releasing the PTCH inhibition of SMO. This allows SMO to trigger intracellular signaling and the subsequent activation of the Gli family of zinc finger transcriptional factors and induction of HH target gene expression (PTCH, Gli1, cyclin, Bcl-2, etc). The WNT and HH signaling pathways play critical roles in many developmental processes, such as cell-fate determination, cell proliferation, neural patterning, stem cell renewal, tissue homeostasis and repair, and tumorigenesis, among many others. Pssm-ID: 320089 Cd Length: 314 Bit Score: 449.08 E-value: 4.85e-155
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| 7tmF_FZD4_9_10-like | cd15909 | class F frizzled subfamilies 4, 9, 10, and related proteins; member of 7-transmembrane G ... |
310-634 | 3.23e-151 | ||||||
class F frizzled subfamilies 4, 9, 10, and related proteins; member of 7-transmembrane G protein-coupled receptors; This group includes subfamilies 4, 9 and 10 of the frizzled (FZD) family of seven transmembrane-spanning proteins, which constitute a novel and separate class of GPCRs, and their closely related proteins. This class F protein family consists of 10 isoforms (FZD1-10) in mammals. The FZDs are activated by the wingless/int-1 (WNT) family of secreted lipoglycoproteins and preferentially couple to stimulatory G proteins of the Gs family, which activate adenylate cyclase, but can also couple to G proteins of the Gi/Gq families. In the WNT/beta-catenin signaling pathway, the WNT ligand binds to FZD and a lipoprotein receptor-related protein (LRP) co-receptor. This leads to the stabilization and translocation of beta-catenin to the nucleus, where it induces the activation of TCF/LEF family transcription factors. The conserved cytoplasmic motif of FZD, Lys-Thr-X-X-X-Trp, is required for activation of the WNT/beta-catenin pathway, and for membrane localization and phosphorylation of Dsh (dishevelled) protein, a key component of the WNT pathway that relays the WNT signals from the activated receptor to downstream effector proteins. The WNT pathway plays a critical role in many developmental processes, such as cell-fate determination, cell proliferation, neural patterning, stem cell renewal, tissue homeostasis and repair, and tumorigenesis, among many others. Pssm-ID: 320575 Cd Length: 320 Bit Score: 439.43 E-value: 3.23e-151
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| 7tmF_FZD5 | cd15249 | class F frizzled subfamily 5, member of 7-transmembrane G protein-coupled receptors; This ... |
310-633 | 8.66e-146 | ||||||
class F frizzled subfamily 5, member of 7-transmembrane G protein-coupled receptors; This group includes subfamily 5 of the frizzled (FZD) family of seven transmembrane-spanning proteins, which constitute a novel and separate class of GPCRs, and its closely related proteins. This class F protein family consists of 10 isoforms (FZD1-10) in mammals. The FZDs are activated by the wingless/int-1 (WNT) family of secreted lipoglycoproteins and preferentially couple to stimulatory G proteins of the Gs family, which activate adenylate cyclase, but can also couple to G proteins of the Gi/Gq families. In the WNT/beta-catenin signaling pathway, the WNT ligand binds to FZD and a lipoprotein receptor-related protein (LRP) co-receptor. This leads to the stabilization and translocation of beta-catenin to the nucleus, where it induces the activation of TCF/LEF family transcription factors. The conserved cytoplasmic motif of FZD, Lys-Thr-X-X-X-Trp, is required for activation of the WNT/beta-catenin pathway, and for membrane localization and phosphorylation of Dsh (dishevelled) protein, a key component of the WNT pathway that relays the WNT signals from the activated receptor to downstream effector proteins. The WNT pathway plays a critical role in many developmental processes, such as cell-fate determination, cell proliferation, neural patterning, stem cell renewal, tissue homeostasis and repair, and tumorigenesis, among many others. Pssm-ID: 320377 Cd Length: 310 Bit Score: 425.51 E-value: 8.66e-146
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| 7tmF_FZD4 | cd15038 | class F frizzled subfamily 4, member of 7-transmembrane G protein-coupled receptors; This ... |
311-634 | 2.49e-142 | ||||||
class F frizzled subfamily 4, member of 7-transmembrane G protein-coupled receptors; This group includes subfamily 4 of the frizzled (FZD) family of seven transmembrane-spanning proteins, which constitute a novel and separate class of GPCRs, and its closely related proteins. This class F protein family consists of 10 isoforms (FZD1-10) in mammals. The FZDs are activated by the wingless/int-1 (WNT) family of secreted lipoglycoproteins and preferentially couple to stimulatory G proteins of the Gs family, which activate adenylate cyclase, but can also couple to G proteins of the Gi/Gq families. In the WNT/beta-catenin signaling pathway, the WNT ligand binds to FZD and a lipoprotein receptor-related protein (LRP) co-receptor. This leads to the stabilization and translocation of beta-catenin to the nucleus, where it induces the activation of TCF/LEF family transcription factors. The conserved cytoplasmic motif of FZD, Lys-Thr-X-X-X-Trp, is required for activation of the WNT/beta-catenin pathway, and for membrane localization and phosphorylation of Dsh (dishevelled) protein, a key component of the WNT pathway that relays the WNT signals from the activated receptor to downstream effector proteins. The WNT pathway plays a critical role in many developmental processes, such as cell-fate determination, cell proliferation, neural patterning, stem cell renewal, tissue homeostasis and repair, and tumorigenesis, among many others. Pssm-ID: 320166 Cd Length: 304 Bit Score: 416.47 E-value: 2.49e-142
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| 7tmF_FZD8 | cd15250 | class F frizzled subfamily 8, member of 7-transmembrane G protein-coupled receptors; This ... |
310-635 | 9.83e-141 | ||||||
class F frizzled subfamily 8, member of 7-transmembrane G protein-coupled receptors; This group includes subfamily 8 of the frizzled (FZD) family of seven transmembrane-spanning proteins, which constitute a novel and separate class of GPCRs, and its closely related proteins. This class F protein family consists of 10 isoforms (FZD1-10) in mammals. The FZDs are activated by the wingless/int-1 (WNT) family of secreted lipoglycoproteins and preferentially couple to stimulatory G proteins of the Gs family, which activate adenylate cyclase, but can also couple to G proteins of the Gi/Gq families. In the WNT/beta-catenin signaling pathway, the WNT ligand binds to FZD and a lipoprotein receptor-related protein (LRP) co-receptor. This leads to the stabilization and translocation of beta-catenin to the nucleus, where it induces the activation of TCF/LEF family transcription factors. The conserved cytoplasmic motif of FZD, Lys-Thr-X-X-X-Trp, is required for activation of the WNT/beta-catenin pathway, and for membrane localization and phosphorylation of Dsh (dishevelled) protein, a key component of the WNT pathway that relays the WNT signals from the activated receptor to downstream effector proteins. The WNT pathway plays a critical role in many developmental processes, such as cell-fate determination, cell proliferation, neural patterning, stem cell renewal, tissue homeostasis and repair, and tumorigenesis, among many others. Pssm-ID: 320378 Cd Length: 314 Bit Score: 412.79 E-value: 9.83e-141
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| 7tmF_FZD3_FZD6-like | cd15910 | class F frizzled subfamilies 3, 6 and related proteins; member of 7-transmembrane G ... |
309-635 | 1.29e-129 | ||||||
class F frizzled subfamilies 3, 6 and related proteins; member of 7-transmembrane G protein-coupled receptors; This group includes subfamilies 3 and 6 of the frizzled (FZD) family of seven transmembrane-spanning proteins, which constitute a novel and separate class of GPCRs, and their closely related proteins. This class F protein family consists of 10 isoforms (FZD1-10) in mammals. The FZDs are activated by the wingless/int-1 (WNT) family of secreted lipoglycoproteins and preferentially couple to stimulatory G proteins of the Gs family, which activate adenylate cyclase, but can also couple to G proteins of the Gi/Gq families. In the WNT/beta-catenin signaling pathway, the WNT ligand binds to FZD and a lipoprotein receptor-related protein (LRP) co-receptor. This leads to the stabilization and translocation of beta-catenin to the nucleus, where it induces the activation of TCF/LEF family transcription factors. The conserved cytoplasmic motif of FZD, Lys-Thr-X-X-X-Trp, is required for activation of the WNT/beta-catenin pathway, and for membrane localization and phosphorylation of Dsh (dishevelled) protein, a key component of the WNT pathway that relays the WNT signals from the activated receptor to downstream effector proteins. The WNT pathway plays a critical role in many developmental processes, such as cell-fate determination, cell proliferation, neural patterning, stem cell renewal, tissue homeostasis and repair, and tumorigenesis, among many others. Pssm-ID: 320576 Cd Length: 321 Bit Score: 384.59 E-value: 1.29e-129
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| 7tmF_FZD3 | cd15033 | class F frizzled subfamily 3, member of 7-transmembrane G protein-coupled receptors; This ... |
309-634 | 6.75e-129 | ||||||
class F frizzled subfamily 3, member of 7-transmembrane G protein-coupled receptors; This group includes subfamily 3 of the frizzled (FZD) family of seven transmembrane-spanning proteins, which constitute a novel and separate class of GPCRs, and its closely related proteins. This class F protein family consists of 10 isoforms (FZD1-10) in mammals. The FZDs are activated by the wingless/int-1 (WNT) family of secreted lipoglycoproteins and preferentially couple to stimulatory G proteins of the Gs family, which activate adenylate cyclase, but can also couple to G proteins of the Gi/Gq families. In the WNT/beta-catenin signaling pathway, the WNT ligand binds to FZD and a lipoprotein receptor-related protein (LRP) co-receptor. This leads to the stabilization and translocation of beta-catenin to the nucleus, where it induces the activation of TCF/LEF family transcription factors. The conserved cytoplasmic motif of FZD, Lys-Thr-X-X-X-Trp, is required for activation of the WNT/beta-catenin pathway, and for membrane localization and phosphorylation of Dsh (dishevelled) protein, a key component of the WNT pathway that relays the WNT signals from the activated receptor to downstream effector proteins. The WNT pathway plays a critical role in many developmental processes, such as cell-fate determination, cell proliferation, neural patterning, stem cell renewal, tissue homeostasis and repair, and tumorigenesis, among many others. Pssm-ID: 320161 Cd Length: 321 Bit Score: 382.76 E-value: 6.75e-129
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| 7tmF_FZD9 | cd15036 | class F frizzled subfamily 9, member of 7-transmembrane G protein-coupled receptors; This ... |
309-631 | 2.94e-128 | ||||||
class F frizzled subfamily 9, member of 7-transmembrane G protein-coupled receptors; This group includes subfamily 9 of the frizzled (FZD) family of seven transmembrane-spanning proteins, which constitute a novel and separate class of GPCRs, and its closely related proteins. This class F protein family consists of 10 isoforms (FZD1-10) in mammals. The FZDs are activated by the wingless/int-1 (WNT) family of secreted lipoglycoproteins and preferentially couple to stimulatory G proteins of the Gs family, which activate adenylate cyclase, but can also couple to G proteins of the Gi/Gq families. In the WNT/beta-catenin signaling pathway, the WNT ligand binds to FZD and a lipoprotein receptor-related protein (LRP) co-receptor. This leads to the stabilization and translocation of beta-catenin to the nucleus, where it induces the activation of TCF/LEF family transcription factors. The conserved cytoplasmic motif of FZD, Lys-Thr-X-X-X-Trp, is required for activation of the WNT/beta-catenin pathway, and for membrane localization and phosphorylation of Dsh (dishevelled) protein, a key component of the WNT pathway that relays the WNT signals from the activated receptor to downstream effector proteins. The WNT pathway plays a critical role in many developmental processes, such as cell-fate determination, cell proliferation, neural patterning, stem cell renewal, tissue homeostasis and repair, and tumorigenesis, among many others. Pssm-ID: 320164 Cd Length: 320 Bit Score: 380.84 E-value: 2.94e-128
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| 7tmF_FZD10 | cd15037 | class F frizzled subfamily 10, member of 7-transmembrane G protein-coupled receptors; This ... |
309-635 | 2.14e-125 | ||||||
class F frizzled subfamily 10, member of 7-transmembrane G protein-coupled receptors; This group includes subfamily 10 of the frizzled (FZD) family of seven transmembrane-spanning proteins, which constitute a novel and separate class of GPCRs, and its closely related proteins. This class F protein family consists of 10 isoforms (FZD1-10) in mammals. The FZDs are activated by the wingless/int-1 (WNT) family of secreted lipoglycoproteins and preferentially couple to stimulatory G proteins of the Gs family, which activate adenylate cyclase, but can also couple to G proteins of the Gi/Gq families. In the WNT/beta-catenin signaling pathway, the WNT ligand binds to FZD and a lipoprotein receptor-related protein (LRP) co-receptor. This leads to the stabilization and translocation of beta-catenin to the nucleus, where it induces the activation of TCF/LEF family transcription factors. The conserved cytoplasmic motif of FZD, Lys-Thr-X-X-X-Trp, is required for activation of the WNT/beta-catenin pathway, and for membrane localization and phosphorylation of Dsh (dishevelled) protein, a key component of the WNT pathway that relays the WNT signals from the activated receptor to downstream effector proteins. The WNT pathway plays a critical role in many developmental processes, such as cell-fate determination, cell proliferation, neural patterning, stem cell renewal, tissue homeostasis and repair, and tumorigenesis, among many others. Pssm-ID: 320165 Cd Length: 320 Bit Score: 373.55 E-value: 2.14e-125
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| 7tmF_FZD6 | cd15032 | class F frizzled subfamily 6, member of 7-transmembrane G protein-coupled receptors; This ... |
309-634 | 2.51e-122 | ||||||
class F frizzled subfamily 6, member of 7-transmembrane G protein-coupled receptors; This group includes subfamily 6 of the frizzled (FZD) family of seven transmembrane-spanning proteins, which constitute a novel and separate class of GPCRs, and its closely related proteins. This class F protein family consists of 10 isoforms (FZD1-10) in mammals. The FZDs are activated by the wingless/int-1 (WNT) family of secreted lipoglycoproteins and preferentially couple to stimulatory G proteins of the Gs family, which activate adenylate cyclase, but can also couple to G proteins of the Gi/Gq families. In the WNT/beta-catenin signaling pathway, the WNT ligand binds to FZD and a lipoprotein receptor-related protein (LRP) co-receptor. This leads to the stabilization and translocation of beta-catenin to the nucleus, where it induces the activation of TCF/LEF family transcription factors. The conserved cytoplasmic motif of FZD, Lys-Thr-X-X-X-Trp, is required for activation of the WNT/beta-catenin pathway, and for membrane localization and phosphorylation of Dsh (dishevelled) protein, a key component of the WNT pathway that relays the WNT signals from the activated receptor to downstream effector proteins. The WNT pathway plays a critical role in many developmental processes, such as cell-fate determination, cell proliferation, neural patterning, stem cell renewal, tissue homeostasis and repair, and tumorigenesis, among many others. Pssm-ID: 320160 Cd Length: 321 Bit Score: 365.71 E-value: 2.51e-122
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| CRD_FZ1 | cd07465 | Cysteine-rich Wnt-binding domain (CRD) of the frizzled 1 (Fz1) receptor; The cysteine-rich ... |
112-238 | 6.08e-90 | ||||||
Cysteine-rich Wnt-binding domain (CRD) of the frizzled 1 (Fz1) receptor; The cysteine-rich domain (CRD) is an essential extracellular portion of the frizzled 1 (Fz1) receptor, and is required for binding Wnt proteins, which play fundamental roles in many aspects of early development, such as cell and tissue polarity, neural synapse formation, and the regulation of proliferation. Fz proteins serve as Wnt receptors for multiple signal transduction pathways, including both beta-catenin dependent and -independent cellular signaling, as well as the planar cell polarity pathway and Ca(2+) modulating signaling pathway. CRD containing Fzs have been found in diverse species from amoebas to mammals. 10 different frizzled proteins are found in vertebrata. Pssm-ID: 143574 Cd Length: 127 Bit Score: 275.01 E-value: 6.08e-90
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| CRD_FZ1_like | cd07458 | Cysteine-rich Wnt-binding domain (CRD) of receptors similar to frizzled 1; The cysteine-rich ... |
114-232 | 1.31e-89 | ||||||
Cysteine-rich Wnt-binding domain (CRD) of receptors similar to frizzled 1; The cysteine-rich domain (CRD) is an essential extracellular portion of the frizzled 1 (Fz1), frizzled 2 (Fz2), and frizzled 7 (Fz7) receptors, and similar proteins. This domain is required for binding Wnt proteins, which play fundamental roles in many aspects of early development, such as cell and tissue polarity, neural synapse formation, and the regulation of proliferation. Fz proteins serve as Wnt receptors for multiple signal transduction pathways, including both beta-catenin dependent and -independent cellular signaling, as well as the planar cell polarity pathway and Ca(2+) modulating signaling pathway. The CRD domain is well conserved in metazoans - 10 frizzled proteins have been identified in mammals, 4 in Drosophila and 3 in Caenorhabditis elegans. Very little is known about the mechanism by which CRD domains interact with their ligands. The domain contains 10 conserved cysteines. Pssm-ID: 143567 Cd Length: 119 Bit Score: 273.90 E-value: 1.31e-89
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| CRD_FZ7 | cd07466 | Cysteine-rich Wnt-binding domain (CRD) of the frizzled 7 (Fz7) receptor; The cysteine-rich ... |
112-234 | 3.47e-86 | ||||||
Cysteine-rich Wnt-binding domain (CRD) of the frizzled 7 (Fz7) receptor; The cysteine-rich domain (CRD) is an essential extracellular portion of the frizzled 7 (Fz7) receptor, and is required for binding Wnt proteins, which play fundamental roles in many aspects of early development, such as cell and tissue polarity, neural synapse formation, and the regulation of proliferation. Fz proteins serve as Wnt receptors for multiple signal transduction pathways, including both beta-catenin dependent and -independent cellular signaling, as well as the planar cell polarity pathway and Ca(2+) modulating signaling pathway. CRD containing Fzs have been found in diverse species from amoebas to mammals. 10 different frizzled proteins are found in vertebrata. Xenopus Fz7 is important in Wnt/beta-catenin signaling pathways controlling the transcriptional activation of target genes Siamois and Xnr3 in the animal caps of late blastula. Pssm-ID: 143575 [Multi-domain] Cd Length: 125 Bit Score: 265.03 E-value: 3.47e-86
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| CRD_FZ2 | cd07464 | Cysteine-rich Wnt-binding domain (CRD) of the frizzled 2 (Fz2) receptor; The cysteine-rich ... |
112-238 | 1.77e-84 | ||||||
Cysteine-rich Wnt-binding domain (CRD) of the frizzled 2 (Fz2) receptor; The cysteine-rich domain (CRD) is an essential extracellular portion of the frizzled 2 (Fz2) receptor, and is required for binding Wnt proteins, which play fundamental roles in many aspects of early development, such as cell and tissue polarity, neural synapse formation, and the regulation of proliferation. Fz proteins serve as Wnt receptors for multiple signal transduction pathways, including both beta-catenin dependent and -independent cellular signaling, as well as the planar cell polarity pathway and Ca(2+) modulating signaling pathway. CRD containing Fzs have been found in diverse species from amoebas to mammals. 10 different frizzled proteins are found in vertebrata. Fz2 is involved in the Wnt/beta-catenin signaling pathway and in the activation of protein kinase C and calcium/calmodulin-dependent protein kinase (CaM kinase). Pssm-ID: 143573 Cd Length: 127 Bit Score: 260.79 E-value: 1.77e-84
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| 7tmF_SMO_homolog | cd15030 | class F smoothened family membrane region, a homolog of frizzled receptors; This group ... |
311-634 | 5.67e-65 | ||||||
class F smoothened family membrane region, a homolog of frizzled receptors; This group represents smoothened (SMO), a transmembrane G protein-coupled receptor that acts as the transducer of the hedgehog (HH) signaling pathway. SMO is activated by the hedgehog (HH) family of proteins acting on the 12-transmembrane domain receptor patched (PTCH), which constitutively inhibits SMO. Thus, in the absence of HH proteins, PTCH inhibits SMO signaling. On the other hand, binding of HH to the PTCH receptor activates its internalization and degradation, thereby releasing the PTCH inhibition of SMO. This allows SMO to trigger intracellular signaling and the subsequent activation of the Gli family of zinc finger transcriptional factors and induction of HH target gene expression (PTCH, Gli1, cyclin, Bcl-2, etc). SMO is closely related to the frizzled (FZD) family of seven transmembrane-spanning proteins, which constitute a novel and separate family of G-protein coupled receptors. The FZDs are activated by the wingless/int-1 (WNT) family of secreted lipoglycoproteins and preferentially couple to stimulatory G proteins of the Gs family, which activate adenylate cyclase, but can also couple to G proteins of the Gi/Gq families. In the WNT/beta-catenin signaling pathway, the WNT ligand binds to FZD and a lipoprotein receptor-related protein (LRP) co-receptor. This leads to the stabilization and translocation of beta-catenin to the nucleus, where it induces the activation of TCF/LEF family transcription factors. The WNT and HH signaling pathways play critical roles in many developmental processes, such as cell-fate determination, cell proliferation, neural patterning, stem cell renewal, tissue homeostasis and repair, and tumorigenesis, among many others. Pssm-ID: 320158 Cd Length: 331 Bit Score: 217.16 E-value: 5.67e-65
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| CRD_FZ5_like | cd07456 | Cysteine-rich Wnt-binding domain (CRD) of receptors similar to frizzled 5; The cysteine-rich ... |
116-231 | 3.54e-57 | ||||||
Cysteine-rich Wnt-binding domain (CRD) of receptors similar to frizzled 5; The cysteine-rich domain (CRD) is an essential extracellular portion of the frizzled 5 (Fz5) and frizzled 8 (Fz8) receptors, and similar proteins. This domain is required for binding Wnt proteins, which play fundamental roles in many aspects of early development, such as cell and tissue polarity, neural synapse formation, and the regulation of proliferation. Fz proteins serve as Wnt receptors for multiple signal transduction pathways, including both beta-catenin dependent and -independent cellular signaling, as well as the planar cell polarity pathway and Ca(2+) modulating signaling pathway. The CRD domain is well conserved in metazoans - 10 frizzled proteins have been identified in mammals, 4 in Drosophila and 3 in Caenorhabditis elegans. Very little is known about the mechanism by which CRD domains interact with their ligands. The domain contains 10 conserved cysteines. Pssm-ID: 143565 Cd Length: 120 Bit Score: 188.76 E-value: 3.54e-57
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| FRI | smart00063 | Frizzled; Drosophila melanogaster frizzled mediates signalling that polarises a precursor cell ... |
116-229 | 1.20e-56 | ||||||
Frizzled; Drosophila melanogaster frizzled mediates signalling that polarises a precursor cell along the anteroposterior axis. Homologues of the N-terminal region of frizzled exist either as transmembrane or secreted molecules. Frizzled homologues are reported to be receptors for the Wnt growth factors. (Not yet in MEDLINE: the FRI domain occurs in several receptor tyrosine kinases [Xu, Y.K. and Nusse, Curr. Biol. 8 R405-R406 (1998); Masiakowski, P. and Yanopoulos, G.D., Curr. Biol. 8, R407 (1998)]. Pssm-ID: 214498 Cd Length: 113 Bit Score: 187.13 E-value: 1.20e-56
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| CRD_FZ8 | cd07461 | Cysteine-rich Wnt-binding domain (CRD) of the frizzled 8 (Fz8) receptor; The cysteine-rich ... |
116-234 | 2.65e-53 | ||||||
Cysteine-rich Wnt-binding domain (CRD) of the frizzled 8 (Fz8) receptor; The cysteine-rich domain (CRD) is an essential extracellular portion of the frizzled 8 (Fz8) receptor, and is required for binding Wnt proteins, which play fundamental roles in many aspects of early development, such as cell and tissue polarity, neural synapse formation, and the regulation of proliferation. Fz proteins serve as Wnt receptors for multiple signal transduction pathways, including both beta-catenin dependent and -independent cellular signaling, as well as the planar cell polarity pathway and Ca(2+) modulating signaling pathway. CRD containing Fzs have been found in diverse species from amoebas to mammals. 10 different frizzled proteins are found in vertebrata. Xenopus Fz8 is important in Wnt/beta-catenin signaling pathways controlling the transcriptional activation of target genes Siamois and Xnr3 in the animal caps of late blastula. Pssm-ID: 143570 Cd Length: 125 Bit Score: 178.64 E-value: 2.65e-53
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| CRD_FZ5 | cd07460 | Cysteine-rich Wnt-binding domain (CRD) of the frizzled 5 (Fz5) receptor.proteins; The ... |
116-234 | 1.83e-51 | ||||||
Cysteine-rich Wnt-binding domain (CRD) of the frizzled 5 (Fz5) receptor.proteins; The cysteine-rich domain (CRD) is an essential extracellular portion of the frizzled 5 (Fz5) receptor, and is required for binding Wnt proteins, which play fundamental roles in many aspects of early development, such as cell and tissue polarity, neural synapse formation, and the regulation of proliferation. Fz proteins serve as Wnt receptors for multiple signal transduction pathways, including both beta-catenin dependent and -independent cellular signaling, as well as the planar cell polarity pathway and Ca(2+) modulating signaling pathway. CRD containing Fzs have been found in diverse species from amoebas to mammals. 10 different frizzled proteins are found in vertebrata. Fz5 plays critical regulating roles in the yolk sac and placental angiogenesis, in the maturation of the Paneth cell phenotype, in governing the neural potential of progenitors in the developing retina, and in neuronal survival in the parafascicular nucleus. Pssm-ID: 143569 [Multi-domain] Cd Length: 127 Bit Score: 173.66 E-value: 1.83e-51
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| 7tmF_FZD3_insect | cd15031 | class F insect frizzled subfamily 3, member of 7-transmembrane G protein-coupled receptors; ... |
309-632 | 7.94e-49 | ||||||
class F insect frizzled subfamily 3, member of 7-transmembrane G protein-coupled receptors; This group represents subfamily 3 of the frizzled (FZD) family of seven transmembrane-spanning G protein-coupled proteins that is found in insects such as Drosophila melanogaster. This class F protein family consists of 10 isoforms (FZD1-10) in mammals. The FZDs are activated by the wingless/int-1 (WNT) family of secreted lipoglycoproteins and preferentially couple to stimulatory G proteins of the Gs family, which activate adenylate cyclase, but can also couple to G proteins of the Gi/Gq families. In the WNT/beta-catenin signaling pathway, the WNT ligand binds to FZD and a lipoprotein receptor-related protein (LRP) co-receptor. This leads to the stabilization and translocation of beta-catenin to the nucleus, where it induces the activation of TCF/LEF family transcription factors. The conserved cytoplasmic motif of FZD, Lys-Thr-X-X-X-Trp, is required for activation of the WNT/beta-catenin pathway, and for membrane localization and phosphorylation of Dsh (dishevelled) protein, a key component of the WNT pathway that relays the WNT signals from the activated receptor to downstream effector proteins. The WNT pathway plays a critical role in many developmental processes, such as cell-fate determination, cell proliferation, neural patterning, stem cell renewal, tissue homeostasis and repair, and tumorigenesis, among many others. Pssm-ID: 320159 Cd Length: 311 Bit Score: 173.03 E-value: 7.94e-49
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| CRD_FZ | cd07066 | CRD_domain cysteine-rich domain, also known as Fz (frizzled) domain; CRD_FZ is an essential ... |
116-229 | 4.04e-45 | ||||||
CRD_domain cysteine-rich domain, also known as Fz (frizzled) domain; CRD_FZ is an essential component of a number of cell surface receptors, which are involved in multiple signal transduction pathways, particularly in modulating the activity of the Wnt proteins, which play a fundamental role in the early development of metazoans. CRD is also found in secreted frizzled related proteins (SFRPs), which lack the transmembrane segment found in the frizzled protein. The CRD domain is also present in the alpha-1 chain of mouse type XVIII collagen, in carboxypeptidase Z, several receptor tyrosine kinases, and the mosaic transmembrane serine protease corin. The CRD domain is well conserved in metazoans - 10 frizzled proteins have been identified in mammals, 4 in Drosophila and 3 in Caenorhabditis elegans. CRD domains have also been identified in multiple tandem copies in a Dictyostelium discoideum protein. Very little is known about the mechanism by which CRD domains interact with their ligands. The domain contains 10 conserved cysteines. Pssm-ID: 143549 Cd Length: 119 Bit Score: 156.51 E-value: 4.04e-45
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| CRD_FZ9_like | cd07457 | Cysteine-rich Wnt-binding domain (CRD) of receptors similar to frizzled 9; The cysteine-rich ... |
114-228 | 1.12e-44 | ||||||
Cysteine-rich Wnt-binding domain (CRD) of receptors similar to frizzled 9; The cysteine-rich domain (CRD) is an essential extracellular portion of the frizzled 9 (Fz9) and frizzled 10 (Fz10) receptors, and similar proteins. This domain is required for binding Wnt proteins, which play fundamental roles in many aspects of early development, such as cell and tissue polarity, neural synapse formation, and the regulation of proliferation. Fz proteins serve as Wnt receptors for multiple signal transduction pathways, including both beta-catenin dependent and -independent cellular signaling, as well as the planar cell polarity pathway and Ca(2+) modulating signaling pathway. The CRD domain is well conserved in metazoans - 10 frizzled proteins have been identified in mammals, 4 in Drosophila and 3 in Caenorhabditis elegans. Very little is known about the mechanism by which CRD domains interact with their ligands. The domain contains 10 conserved cysteines. Pssm-ID: 143566 Cd Length: 121 Bit Score: 155.34 E-value: 1.12e-44
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| CRD_FZ10 | cd07462 | Cysteine-rich Wnt-binding domain (CRD) of the frizzled 10 (Fz10) receptor; The cysteine-rich ... |
114-219 | 1.99e-44 | ||||||
Cysteine-rich Wnt-binding domain (CRD) of the frizzled 10 (Fz10) receptor; The cysteine-rich domain (CRD) is an essential extracellular portion of the frizzled 10 (Fz10) receptor, and is required for binding Wnt proteins, which play fundamental roles in many aspects of early development, such as cell and tissue polarity, neural synapse formation, and the regulation of proliferation. Fz proteins serve as Wnt receptors for multiple signal transduction pathways, including both beta-catenin dependent and -independent cellular signaling, as well as the planar cell polarity pathway and Ca(2+) modulating signaling pathway. CRD containing Fzs have been found in diverse species from amoebas to mammals. 10 different frizzled proteins are found in vertebrata. The cellular functon of Fz10 is unknown. Pssm-ID: 143571 Cd Length: 127 Bit Score: 154.79 E-value: 1.99e-44
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| CRD_FZ4 | cd07448 | Cysteine-rich Wnt-binding domain of the frizzled 4 (Fz4) receptor; The cysteine-rich domain ... |
116-220 | 8.99e-43 | ||||||
Cysteine-rich Wnt-binding domain of the frizzled 4 (Fz4) receptor; The cysteine-rich domain (CRD) is an essential extracellular portion of the frizzled 4 (Fz4) receptor, and is required for binding Wnt proteins, which play fundamental roles in many aspects of early development, such as cell and tissue polarity, neural synapse formation, and the regulation of proliferation. Fz proteins serve as Wnt receptors for multiple signal transduction pathways, including both beta-catenin dependent and -independent cellular signaling, as well as the planar cell polarity pathway and the Ca(2+) modulating signaling pathway. CRD containing Fzs have been found in diverse species from amoebas to mammals. 10 different frizzled proteins are found in vertebrata. Frizzled 4 (Fz4) activates the Ca(2+)/calmodulin-dependent protein kinase II and protein kinase C of the Wnt/Ca(2+) signaling pathway during retinal angiogenesis. Mutations in Fz4 lead to familial exudative vitreoretinopathy (FEVR), a hereditary ocular disorder characterized by failure of the peripheral retinal vascularization. In addition, the interplay between Fz4 and norrin as a receptor-ligand pair plays an important role in vascular development in the retina and inner ear in a Wnt-independent manner. Pssm-ID: 143557 Cd Length: 126 Bit Score: 150.30 E-value: 8.99e-43
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| Fz | pfam01392 | Fz domain; Also known as the CRD (cysteine rich domain), the C6 box in MuSK receptor. This ... |
116-221 | 4.63e-42 | ||||||
Fz domain; Also known as the CRD (cysteine rich domain), the C6 box in MuSK receptor. This domain of unknown function has been independently identified by several groups. The domain contains 10 conserved cysteines. Pssm-ID: 460190 Cd Length: 116 Bit Score: 147.72 E-value: 4.63e-42
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| CRD_FZ9 | cd07463 | Cysteine-rich Wnt-binding domain (CRD) of the frizzled 9 (Fz9) receptor; The cysteine-rich ... |
116-219 | 1.18e-41 | ||||||
Cysteine-rich Wnt-binding domain (CRD) of the frizzled 9 (Fz9) receptor; The cysteine-rich domain (CRD) is an essential extracellular portion of the frizzled 9 (Fz9) receptor, and is required for binding Wnt proteins, which play fundamental roles in many aspects of early development, such as cell and tissue polarity, neural synapse formation, and the regulation of proliferation. Fz proteins serve as Wnt receptors for multiple signal transduction pathways, including both beta-catenin dependent and -independent cellular signaling, as well as the planar cell polarity pathway and Ca(2+) modulating signaling pathway. CRD containing Fzs have been found in diverse species from amoebas to mammals. 10 different frizzled proteins are found in vertebrata. Fz9 may play a signaling role in lymphoid development and maturation, particularly at points where B cells undergo self-renewal prior to further differentiation. Pssm-ID: 143572 Cd Length: 127 Bit Score: 147.09 E-value: 1.18e-41
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| CRD_FZ3 | cd07449 | Cysteine-rich Wnt-binding domain (CRD) of the frizzled 3 (Fz3) receptor; The cysteine-rich ... |
116-219 | 4.73e-38 | ||||||
Cysteine-rich Wnt-binding domain (CRD) of the frizzled 3 (Fz3) receptor; The cysteine-rich domain (CRD) is an essential extracellular portion of the frizzled 3 (Fz3) receptor, and is required for binding Wnt proteins, which play fundamental roles in many aspects of early development, such as cell and tissue polarity, neural synapse formation, and the regulation of proliferation. Fz proteins serve as Wnt receptors for multiple signal transduction pathways, including both beta-catenin dependent and -independent cellular signaling, as well as the planar cell polarity pathway and Ca(2+) modulating signaling pathway. CRD containing Fzs have been found in diverse species from amoebas to mammals. 10 different frizzled proteins are found in vertebrata. Fz3 plays a vital role in the anterior-posterior guidance of commissural axons. Knockout mice without Fz3 show defects in fiber tracts in the rostral CNS. Pssm-ID: 143558 [Multi-domain] Cd Length: 127 Bit Score: 137.06 E-value: 4.73e-38
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| CRD_SFRP3 | cd07441 | Cysteine-rich domain of the secreted frizzled-related protein 3 (SFRP3, alias FRZB), a Wnt ... |
116-228 | 1.14e-37 | ||||||
Cysteine-rich domain of the secreted frizzled-related protein 3 (SFRP3, alias FRZB), a Wnt antagonist; The cysteine-rich domain (CRD) is an essential part of the secreted frizzled-related protein 3 (SFRP3, alias FRZB), which plays important roles in embryogenesis and postnatal development as an antagonist of Wnt proteins, key players in a number of fundamental cellular processes. SFRPs antagonize the activation of Wnt signaling by binding to the CRD domains of frizzled proteins (Fz), thereby preventing Wnt proteins from binding to these receptors. SFRPs are also known to have functions unrelated to Wnt, as enhancers of procollagen cleavage by the TLD proteinases. SFRPs and Fz proteins both contain CRD domains, but SFRPs lack the seven-pass transmembrane domain which is an integral part of Fzs. SFRP3 regulates Wnt signaling activity in bone development and homeostasis. It is also involved in the control of planar cell polarity. Pssm-ID: 143550 Cd Length: 126 Bit Score: 136.33 E-value: 1.14e-37
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| CRD_SFRP4 | cd07442 | Cysteine-rich domain of the secreted frizzled-related protein 4 (SFRP4), a Wnt antagonist; The ... |
116-228 | 3.27e-37 | ||||||
Cysteine-rich domain of the secreted frizzled-related protein 4 (SFRP4), a Wnt antagonist; The cysteine-rich domain (CRD) is an essential part of the secreted frizzled-related Protein 4 (SFRP4), which regulates the activity of Wnt proteins, key players in a number of fundamental cellular processes such as embryogenesis and postnatal development. SFRPs antagonize the activation of Wnt signaling by binding to the CRDs domains of frizzled (Fz) proteins, thereby preventing Wnt proteins from binding to these receptors. SFRPs are also known to have functions unrelated to Wnt, as enhancers of procollagen cleavage by the TLD proteinases. SFRPs and Fz proteins both contain CRD domains, but SFRPs lack the seven-pass transmembrane domain which is an integral part of Fzs. Pssm-ID: 143551 Cd Length: 127 Bit Score: 134.77 E-value: 3.27e-37
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| CRD_SFRP2 | cd07446 | Cysteine-rich domain of the secreted frizzled-related protein 2 (SFRP2), a regulator of Wnt ... |
116-238 | 2.01e-31 | ||||||
Cysteine-rich domain of the secreted frizzled-related protein 2 (SFRP2), a regulator of Wnt activity; The cysteine-rich-domain (CRD) is an essential part of the secreted frizzled related protein 2 (SFRP2), which regulates the activity of Wnt proteins, key players in a number of fundamental cellular processes such as embryogenesis and postnatal development. SFRPs antagonize the activation of Wnt signaling by binding to CRD domains of frizzled (Fz) proteins, thereby preventing Wnt proteins from binding to these receptors. SFRPs and Fz proteins both contain CRD domains, but SFRPs lack the seven-pass transmembrane domain which is an integral part of Fzs. As a Wnt antagonist, SFRP2 regulates Nkx2.2 expression in the ventral spinal cord and anteroposterior axis elongation. SFRP2 also has a Wnt-independent function as an enhancer of procollagen cleavage by the TLD proteinases. SFRP2 binds both procollagen and TLD, thus facilitating the enzymatic reaction by bringing together the proteinase and its substrate. Pssm-ID: 143555 Cd Length: 128 Bit Score: 118.86 E-value: 2.01e-31
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| CRD_FZ6 | cd07450 | Cysteine-rich Wnt-binding domain (CRD) of the frizzled 6 (Fz6) receptor; The cysteine-rich ... |
116-219 | 5.76e-31 | ||||||
Cysteine-rich Wnt-binding domain (CRD) of the frizzled 6 (Fz6) receptor; The cysteine-rich domain (CRD) is an essential extracellular portion of the frizzled 6 (Fz6) receptor, and is required for binding Wnt proteins, which play fundamental roles in many aspects of early development, such as cell and tissue polarity, neural synapse formation, and the regulation of proliferation. Fz proteins serve as Wnt receptors for multiple signal transduction pathways, including both beta-catenin dependent and -independent cellular signaling, as well as the planar cell polarity pathway and Ca(2+) modulating signaling pathway. CRD containing Fzs have been found in diverse species from amoebas to mammals. 10 different frizzled proteins are found in vertebrata. Frizzled 6 (Fz6) is expressed in the skin and hair follicles and controls hair patterning in mammals using a Fz-dependent tissue polarity system, which is similar to the one that patterns the Drosophila cuticle. Pssm-ID: 143559 [Multi-domain] Cd Length: 127 Bit Score: 117.56 E-value: 5.76e-31
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| CRD_SFRP5 | cd07444 | Cysteine-rich domain of the secreted frizzled-related protein 5 (SFRP5), a regulator of Wnt ... |
118-228 | 7.02e-29 | ||||||
Cysteine-rich domain of the secreted frizzled-related protein 5 (SFRP5), a regulator of Wnt activity; The cysteine-rich domain (CRD) is an essential part of the secreted frizzled-related Protein 5 (SFRP5), which regulates the activity of Wnt proteins, key players in a number of fundamental cellular processes such as embryogenesis and postnatal development. SFRPs antagonize the activation of Wnt signaling by binding to the CRD domains of frizzled (Fz) proteins, thereby preventing Wnt proteins from binding to these receptors. SFRPs are also known to have functions unrelated to Wnt, as enhancers of procollagen cleavage by the TLD proteinases. SFRPs and Fz proteins both contain CRD domains, but SFRPs lack the seven-pass transmembrane domain which is an integral part of Fzs. Pssm-ID: 143553 Cd Length: 127 Bit Score: 111.58 E-value: 7.02e-29
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| CRD_corin_2 | cd07888 | One of two cysteine-rich domains of the corin protein, a type II transmembrane serine protease ... |
116-223 | 1.96e-28 | ||||||
One of two cysteine-rich domains of the corin protein, a type II transmembrane serine protease ; The cysteine-rich domain (CRD) is an essential component of corin, a type II transmembrane serine protease which functions as the convertase of the pro-atrial natriuretic peptide (pro-ANP) in the heart. Corin contains two CRDs in its extracellular region, which play an important role in recognition of the physiological substrate, pro-ANP. This model characterizes the second (C-terminal) CRD. Pssm-ID: 143579 [Multi-domain] Cd Length: 122 Bit Score: 110.10 E-value: 1.96e-28
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| CRD_crescent | cd07453 | Cysteine-rich domain of the crescent protein; The cysteine-rich domain (CRD) is an essential ... |
118-238 | 6.52e-28 | ||||||
Cysteine-rich domain of the crescent protein; The cysteine-rich domain (CRD) is an essential part of the crescent protein, a member of the secreted frizzled-related protein (SFRP) family, which regulates convergent extension movements (CEMs) during gastrulation and neurulation. Xenopus laevis crescent efficiently forms inhibitory complexes with Wnt5a and Wnt11, but this effect is cancelled in the presence of another member of the SFRP family, Frzb1. A potential role for Crescent in head formation is to regulate a non-canonical Wnt pathway positively in the adjacent posterior mesoderm, and negatively in the overlying anterior neuroectoderm. Pssm-ID: 143562 [Multi-domain] Cd Length: 135 Bit Score: 108.87 E-value: 6.52e-28
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| CRD_LIN_17 | cd07454 | Cysteine-rich domain (CRD) of LIN_17; A cysteine-rich domain (CRD) is an essential component ... |
114-228 | 5.98e-27 | ||||||
Cysteine-rich domain (CRD) of LIN_17; A cysteine-rich domain (CRD) is an essential component of a number of cell surface receptors, which are involved in multiple signal transduction pathways, particularly in modulating the activity of the Wnt proteins, which play a fundamental role in the early development of metazoans. CRD is also found in secreted frizzled related proteins (SFRPs), which lack the transmembrane segment found in the frizzled protein. The CRD domain is also present in the alpha-1 chain of mouse type XVIII collagen, in carboxypeptidase Z, several receptor tyrosine kinases, and the mosaic transmembrane serine protease corin. The CRD domain is well conserved in metazoans - 10 frizzled proteins have been identified in mammals, 4 in Drosophila and 3 in Caenorhabditis elegans. CRD domains have also been identified in multiple tandem copies in a Dictyostelium discoideum protein. Very little is known about the mechanism by which CRD domains interact with their ligands. The domain contains 10 conserved cysteines. The protein lin-17 is involved in cell type specification during Caenorhabditis elegans vulval development. Pssm-ID: 143563 Cd Length: 124 Bit Score: 106.02 E-value: 5.98e-27
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| CRD_SFRP1 | cd07443 | Cysteine-rich domain of the secreted frizzled-related protein 1 (SFRP1), a regulator of Wnt ... |
118-234 | 1.14e-26 | ||||||
Cysteine-rich domain of the secreted frizzled-related protein 1 (SFRP1), a regulator of Wnt activity; The cysteine-rich domain (CRD) is an essential part of the secreted frizzled-related protein 1 (SFRP1), which regulates the activity of Wnt proteins, key players in a number of fundamental cellular processes such as embryogenesis and postnatal development. SFRPs antagonize the activation of Wnt signaling by binding to the CRDs domains of frizzled (Fz) proteins, thereby preventing Wnt proteins from binding to these receptors. SFRPs are also known to have functions unrelated to Wnt, as enhancers of procollagen cleavage by the TLD proteinases. SFRPs and Fz proteins both contain CRD domains, but SFRPs lack the seven-pass transmembrane domain which is an integral part of Fzs. SFRP1 is expressed in many tissues and is involved in the regulation of Wnt signaling in osteoblasts, leading to enhanced trabecular bone formation in adults; it has also been shown to control the growth of retinal ganglion cell axons and the elongation of the antero-posterior axis. Pssm-ID: 143552 Cd Length: 124 Bit Score: 104.98 E-value: 1.14e-26
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| CRD_sizzled | cd07452 | Cysteine-rich domain of the sizzled protein; The cysteine-rich domain (CRD) is an essential ... |
118-219 | 1.32e-20 | ||||||
Cysteine-rich domain of the sizzled protein; The cysteine-rich domain (CRD) is an essential part of the sizzled protein, which regulates bone morphogenetic protein (Bmp) signaling by stabilizing chordin, and plays a critical role in the patterning of vertebrate and invertebrate embryos. Sizzled also functions in the ventral region as a Wnt inhibitor and modulates canonical Wnt signaling. Sizzled proteins belong to the secreted frizzled-related protein family (SFRP), and have be identified in the genomes of birds, fishes and frogs, but not mammals. Pssm-ID: 143561 Cd Length: 141 Bit Score: 88.40 E-value: 1.32e-20
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| CRD_Carboxypeptidase_Z | cd07447 | Cysteine-rich domain of carboxypeptidase Z, a member of the carboxypeptidase E family; The ... |
116-218 | 1.31e-15 | ||||||
Cysteine-rich domain of carboxypeptidase Z, a member of the carboxypeptidase E family; The cysteine-rich-domain (CRD) is an essential part of carboxypeptidase Z, a member of the carboxypeptidase E family of metallocarboxypeptidases. This is a group of Zn-dependent enzymes implicated in the intra- and extracellular processing of proteins. Carboxypeptidase Z removes C-terminal basic amino acid residues from its substrates, particularly arginine. The CRD acts as a ligand-binding domain for Wnts involved in developmental processes. CPZ binds and may process Wnt-4, CPZ has also been found to enhance the induction of the homeobox gene Cdx1. During vertebrate embryogenesis, the CRD of CPZ upregulates Pax3, a Wnt reporter gene essential for patterning of somites and limb development. Pssm-ID: 143556 Cd Length: 128 Bit Score: 73.63 E-value: 1.31e-15
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| CRD_corin_1 | cd07445 | One of two cysteine-rich domains of the corin protein, a type II transmembrane serine protease ... |
114-218 | 9.19e-12 | ||||||
One of two cysteine-rich domains of the corin protein, a type II transmembrane serine protease ; The cysteine-rich domain (CRD) is an essential component of corin, a type II transmembrane serine protease which functions as the convertase of the pro-atrial natriuretic peptide (pro-ANP) in the heart. Corin contains two CRDs in its extracellular region, which play an important role in recognition of the physiological substrate, pro-ANP. This model characterizes the first (N-terminal) CRD. Pssm-ID: 143554 Cd Length: 130 Bit Score: 62.64 E-value: 9.19e-12
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| CRD_Collagen_XVIII | cd07455 | Cysteine-rich domain of the variant 3 of collagen XVIII (V3C18 ); The cysteine-rich domain ... |
118-204 | 4.95e-11 | ||||||
Cysteine-rich domain of the variant 3 of collagen XVIII (V3C18 ); The cysteine-rich domain (CRD) is an essential part of the variant 3 of collagen XVIII (V3C18), which regulates major cellular functions such as the differential epithelial morphogenesis of early lung and kidney development. V3C18 is a 170 kD protein, which is proteolotically processed into the CRD-containing 50 kD glucoprotein precursor that binds Wnt3a through its CRD domain and suppresses the Wnt3a-induced stabilization of beta catenin. Full-length V3C18 is unable to inhibit Wnt signaling. Pssm-ID: 143564 Cd Length: 123 Bit Score: 60.60 E-value: 4.95e-11
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| 7tmB2_Adhesion | cd15040 | adhesion receptors, subfamily B2 of the class B family of seven-transmembrane G ... |
321-556 | 9.39e-07 | ||||||
adhesion receptors, subfamily B2 of the class B family of seven-transmembrane G protein-coupled receptors; The B2 subfamily of class B GPCRs consists of cell-adhesion receptors with 33 members in humans and vertebrates. The adhesion receptors are characterized by the presence of large N-terminal extracellular domains containing a variety of structural motifs, which play critical roles in cell-cell adhesion and cell-matrix interactions, linked to a class B seven-transmembrane domain. These include, for example, EGF (epidermal growth factor)-like domains in CD97, Celsr1 (cadherin family member), Celsr2, Celsr3, EMR1 (EGF-module-containing mucin-like hormone receptor-like 1), EMR2, EMR3, and Flamingo; two laminin A G-type repeats and nine cadherin domains in Flamingo and its human orthologs Celsr1, Celsr2 and Celsr3; olfactomedin-like domains in the latrotoxin receptors; and five or four thrombospondin type 1 repeats in BAI1 (brain-specific angiogenesis inhibitor 1), BAI2 and BAI3. Furthermore, almost all adhesion receptors, except GPR123, contain an evolutionarily conserved GPCR- autoproteolysis inducing (GAIN) domain that undergoes autoproteolytic processing at the GPCR proteolysis site (GPS) motif located immediately N-terminal to the first transmembrane region, to generate N- and C-terminal fragments (NTF and CTF), which may serve important biological functions. Pssm-ID: 320168 [Multi-domain] Cd Length: 253 Bit Score: 50.65 E-value: 9.39e-07
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| CRD_SMO | cd07451 | Cysteine-rich domain of the smoothened receptor (Smo) integral membrane protein; The ... |
116-217 | 3.76e-06 | ||||||
Cysteine-rich domain of the smoothened receptor (Smo) integral membrane protein; The cysteine-rich domain (CRD) is part of the smoothened receptor (Smo), an integral membrane protein and one of the key players in the Hedgehog (Hh) signaling pathway, critical for development, cell growth and migration, as well as stem cell maintenance. The CRD of Smo is conserved in vertebrates and can also be identified in invertebrates. The precise function of the CRD in Smo is unknown. Mutations in the Drosophila CRD disrupt Smo activity in vivo, while deletion of the CRD in mammalian cells does not seem to affect the activity of overexpressed Smo. Pssm-ID: 143560 Cd Length: 132 Bit Score: 46.59 E-value: 3.76e-06
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| 7tm_GPCRs | cd14964 | seven-transmembrane G protein-coupled receptor superfamily; This hierarchical evolutionary ... |
323-567 | 9.21e-06 | ||||||
seven-transmembrane G protein-coupled receptor superfamily; This hierarchical evolutionary model represents the seven-transmembrane (7TM) receptors, often referred to as G protein-coupled receptors (GPCRs), which transmit physiological signals from the outside of the cell to the inside via G proteins. GPCRs constitute the largest known superfamily of transmembrane receptors across the three kingdoms of life that respond to a wide variety of extracellular stimuli including peptides, lipids, neurotransmitters, amino acids, hormones, and sensory stimuli such as light, smell and taste. All GPCRs share a common structural architecture comprising of seven-transmembrane (TM) alpha-helices interconnected by three extracellular and three intracellular loops. A general feature of GPCR signaling is agonist-induced conformational changes in the receptors, leading to activation of the heterotrimeric G proteins, which consist of the guanine nucleotide-binding G-alpha subunit and the dimeric G-beta-gamma subunits. The activated G proteins then bind to and activate numerous downstream effector proteins, which generate second messengers that mediate a broad range of cellular and physiological processes. However, some 7TM receptors, such as the type 1 microbial rhodopsins, do not activate G proteins. Based on sequence similarity, GPCRs can be divided into six major classes: class A (the rhodopsin-like family), class B (the Methuselah-like, adhesion and secretin-like receptor family), class C (the metabotropic glutamate receptor family), class D (the fungal mating pheromone receptors), class E (the cAMP receptor family), and class F (the frizzled/smoothened receptor family). Nearly 800 human GPCR genes have been identified and are involved essentially in all major physiological processes. Approximately 40% of clinically marketed drugs mediate their effects through modulation of GPCR function for the treatment of a variety of human diseases including bacterial infections. Pssm-ID: 410628 [Multi-domain] Cd Length: 267 Bit Score: 47.81 E-value: 9.21e-06
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| 7tmE_cAMP_R_Slime_mold | cd14940 | slime mold cyclic AMP receptor, member of the class E family of seven-transmembrane G ... |
381-550 | 1.81e-05 | ||||||
slime mold cyclic AMP receptor, member of the class E family of seven-transmembrane G protein-coupled receptors; This family represents the class E of seven-transmembrane G-protein coupled receptors found in soil-living amoebas, commonly referred to as slime molds. The class E family includes cAMP receptors (cAR1-4) and cAMP receptors-like proteins (CrlA-C) from Dictyostelium discoideum, and their highly homologous cAMP receptors (TasA and TasB) from Polysphondylium pallidum. So far, four subtypes of cAMP receptors (cAR1-4) have been identified that play an essential role in the detection and transmit of the periodic extracellular cAMP waves that regulate chemotactic cell movement during Dictyostelium development, from the unicellular amoeba aggregate into many multicellular slugs and then differentiate into a sporocarp, a fruiting body with cells specialized for different functions. These four subtypes differ in their expression levels and patterns during development. cAR1 is high-affinity receptor that is the first one to be expressed highly during early aggregation and continues to be expressed at low levels during later developmental stages. cAR1 detects extracellular cAMP and is coupled to G-alpha2 protein. Cells lacking cAR1 fail to aggregate, demonstrating that cAR1 is responsible for aggregation. During later aggregation the high-affinity cAR3 receptor is expressed at low levels. Nonetheless, cells lacking cAR3 do not show an obviously altered pattern of development and are still able to aggregate into fruiting bodies. In contrast, cAR2 and cAR4 are low affinity receptors expressed predominantly after aggregation in pre-stalk cells. cAR2 is essential for normal tip formation and deletion of the receptor arrests development at the mound stage. On the other hand, CAR4 regulates axial patterning and cellular differentiation, and deletion of the receptor results in defects during culmination. Furthermore, three cAMP receptor-like proteins (CrlA-C) were identified in Dictyostelium that show limited sequence similarity to the cAMP receptors. Of these CrlA is thought to be required for normal cell growth and tip formation in developing aggregates. Pssm-ID: 320094 [Multi-domain] Cd Length: 256 Bit Score: 46.58 E-value: 1.81e-05
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| 7tm_classB | cd13952 | class B family of seven-transmembrane G protein-coupled receptors; The class B of ... |
327-543 | 4.25e-05 | ||||||
class B family of seven-transmembrane G protein-coupled receptors; The class B of seven-transmembrane GPCRs is classified into three major subfamilies: subfamily B1 (secretin-like receptor family), B2 (adhesion family), and B3 (Methuselah-like family). The class B receptors have been identified in all the vertebrates, from fishes to mammals, as well as invertebrates including Caenorhabditis elegans and Drosophila melanogaster, but are not present in plants, fungi or prokaryotes. The B1 subfamily comprises receptors for polypeptide hormones of 27-141 amino-acid residues such as secretin, glucagon, glucagon-like peptide (GLP), calcitonin gene-related peptide, parathyroid hormone (PTH), and corticotropin-releasing factor. These receptors contain the large N-terminal extracellular domain (ECD), which plays a critical role in hormone recognition by binding to the C-terminal portion of the peptide. On the other hand, the N-terminal segment of the hormone induces receptor activation by interacting with the receptor transmembrane domains and connecting extracellular loops, triggering intracellular signaling pathways. All members of the subfamily B1 receptors preferentially couple to G proteins of G(s) family, which positively stimulate adenylate cyclase, leading to increased intracellular cAMP formation and calcium influx. The subfamily B2 consists of cell-adhesion receptors with 33 members in humans and vertebrates. The adhesion receptors are characterized by the presence of large N-terminal extracellular domains containing a variety of structural motifs, which play critical roles in cell-cell adhesion and cell-matrix interactions, linked to a class B seven-transmembrane domain. These include, for example, EGF (epidermal growth factor)-like domains in CD97, Celsr1 (cadherin family member), Celsr2, Celsr3, EMR1 (EGF-module-containing mucin-like hormone receptor-like 1), EMR2, EMR3, and Flamingo; two laminin A G-type repeats and nine cadherin domains in Flamingo and its human orthologs Celsr1, Celsr2 and Celsr3; olfactomedin-like domains in the latrotoxin receptors; and five or four thrombospondin type 1 repeats in BAI1 (brain-specific angiogenesis inhibitor 1), BAI2 and BAI3. Almost all adhesion receptors, except GPR123, contain an evolutionarily conserved GPCR- autoproteolysis inducing (GAIN) domain that undergoes autoproteolytic processing at the GPCR proteolysis site (GPS) motif located immediately N-terminal to the first transmembrane region, to generate N- and C-terminal fragments (NTF and CTF), which may serve important biological functions. Furthermore, the subfamily B3 includes Methuselah (Mth) protein, which was originally identified in Drosophila as a GPCR affecting stress resistance and aging, and its closely related proteins. Pssm-ID: 410627 [Multi-domain] Cd Length: 260 Bit Score: 45.67 E-value: 4.25e-05
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