PDZ domain of segment polarity protein dishevelled homolog DVL1, DVL2, DVL3, and related domains; PDZ (PSD-95 (Postsynaptic density protein 95), Dlg (Discs large protein), and ZO-1 (Zonula occludens-1)) domain of DVL1-3, and related domains. The dishevelleds (DVL1, 2 and 3 in humans) act downstream of Frizzled (FZD) receptors in both the canonical and non-canonical WNT signaling pathway; they bind the cytoplasmic C-terminus of frizzled family members and transduce the Wnt signal to down-stream effectors. They bind to several proteins known to modulate Wnt signaling. Binding partners of the DVL1 PDZ domain include nucleoredoxin (NXN), Van Gogh-like (VANGL1), Wnt receptor RYK, Dapper 1 (DACT1), Frizzled7 (FZD7), transmembrane protein 88 (TMEM88), Daple (dishevelled-associating protein with a high frequency of leucines), also known as Ccdc88c), and cysteine-rich protein Idax. The DVL2 PDZ domain has been shown to bind the nuclear export signal sequence of the DVL2 protein. PDZ domains usually bind in a sequence-specific manner to short peptide sequences located at the C-terminal end of their partner proteins (known as PDZ binding motifs). The PDZ superfamily includes canonical PDZ domains as well as those with circular permutations and domain swapping mediated by beta-strands. This DVL-like family domain is a canonical PDZ domain containing six beta-strands A-F and two alpha-helices (alpha-helix 1 and 2), arranged in the order: beta-strands A, B, C, alpha-helix 1, beta-strands D, E, alpha-helix 2 and beta-strand F.

                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 530410021 263 TVTLNMEKYNFLGISIVGQSNERGDGGIYIGSIMKGGAVAADGRIEPGDMLLQVNDMNFENMSNDDAVRVLRDIVHKPGP 342
Cdd:cd06717    1 TVTLNMEKVNFLGISIVGQSNERGDGGIYVGSIMKGGAVAADGRIEPGDMILQVNDISFENMSNDDAVRVLREAVHKPGP 80

                 ....*..
gi 530410021 343 IVLTVAK 349
Cdd:cd06717   81 ITLTVAK 87

Segment polarity protein dishevelled (Dsh) C terminal; This domain family is found in eukaryotes, and is typically between 177 and 207 amino acids in length. The family is found in association with pfam00778, pfam02377, pfam00610, pfam00595. The segment polarity gene dishevelled (dsh) is required for pattern formation of the embryonic segments. It is involved in the determination of body organization through the Wingless pathway (analogous to the Wnt-1 pathway).

                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 530410021  511 YLVNLSLNDNDGSSGASDQDTLAPLP--GATPWPLLPTFSYQYPAPHPYSPQPPPYHELSSYTYGGGSASSQHSEGSRSS 588
Cdd:pfam12316   1 NMANLNLNDDDGSSGASDQDTLAPLPhpGTAPWPMGQFFPYQYPPPPPYTQFPPYHEDSSSYSGGGGSAGSQHSEGSRSS 80

                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 530410021  589 GSTRSDGGAGRTGRPEERApesKSGSGSESEPSSRGGSLRRGGEASGTSDGGPPPSRGSTG-GAPNLRAHPGLHPYGPPP 667
Cdd:pfam12316  81 GSNRSGGGGPRKQKEEKAG---SKGGSGSESESARRSSQRGIRVPAQGSRGSHASSRSSHSlGGGGSRSHHSLHASHAGG 157

                         170       180       190       200       210
                  ....*....|....*....|....*....|....*....|....*....|....*
gi 530410021  668 GMALPYNpmmVVMMPPPPPPVPPAVQPPGAPPVRDLGSVPPELTASRQSFHMAMG 722
Cdd:pfam12316 158 MPLAYYG---PPGLPPPAAAPAASQGPPGAPPGRELASVPPELTASRQSFQMAMG 209

Dishevelled specific domain; This domain is specific to the signalling protein dishevelled. The domain is found adjacent to the PDZ domain pfam00595, often in conjunction with DEP (pfam00610) and DIX (pfam00778). Much of it is disordered and yet conserved.

                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 530410021  125 TSGIGDSRPPSFHPNVSSSHENLEPETETESVVSLRRERPRRRDSTG---GHRTGGPSRLER--HLAGYESSSTLMTSEL 199
Cdd:pfam02377  20 TGGIGDSRPPSFHPNAAGSRDGLDNETETESVVSHRRDRERRRRREGhdhGPRLNGHSKGERrpDLGGYDSSSTLMSSEL 99

                          90       100       110       120       130       140
                  ....*....|....*....|....*....|....*....|....*....|....*....|.
gi 530410021  200 ESTSLGDSDEEDTMSRFSSSTEQSSASRLLKRHRR-RRKQRPPRLERTSSFSSVTDSTMSL 259
Cdd:pfam02377 100 ETTSFFDSEDDDSTSRFSSSTEQSSSSRLLRRHRRrRRKPKMPRMERSSSFSSITDSTMSL 160

PDZ domain of segment polarity protein dishevelled homolog DVL1, DVL2, DVL3, and related domains; PDZ (PSD-95 (Postsynaptic density protein 95), Dlg (Discs large protein), and ZO-1 (Zonula occludens-1)) domain of DVL1-3, and related domains. The dishevelleds (DVL1, 2 and 3 in humans) act downstream of Frizzled (FZD) receptors in both the canonical and non-canonical WNT signaling pathway; they bind the cytoplasmic C-terminus of frizzled family members and transduce the Wnt signal to down-stream effectors. They bind to several proteins known to modulate Wnt signaling. Binding partners of the DVL1 PDZ domain include nucleoredoxin (NXN), Van Gogh-like (VANGL1), Wnt receptor RYK, Dapper 1 (DACT1), Frizzled7 (FZD7), transmembrane protein 88 (TMEM88), Daple (dishevelled-associating protein with a high frequency of leucines), also known as Ccdc88c), and cysteine-rich protein Idax. The DVL2 PDZ domain has been shown to bind the nuclear export signal sequence of the DVL2 protein. PDZ domains usually bind in a sequence-specific manner to short peptide sequences located at the C-terminal end of their partner proteins (known as PDZ binding motifs). The PDZ superfamily includes canonical PDZ domains as well as those with circular permutations and domain swapping mediated by beta-strands. This DVL-like family domain is a canonical PDZ domain containing six beta-strands A-F and two alpha-helices (alpha-helix 1 and 2), arranged in the order: beta-strands A, B, C, alpha-helix 1, beta-strands D, E, alpha-helix 2 and beta-strand F.

                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 530410021 263 TVTLNMEKYNFLGISIVGQSNERGDGGIYIGSIMKGGAVAADGRIEPGDMLLQVNDMNFENMSNDDAVRVLRDIVHKPGP 342
Cdd:cd06717    1 TVTLNMEKVNFLGISIVGQSNERGDGGIYVGSIMKGGAVAADGRIEPGDMILQVNDISFENMSNDDAVRVLREAVHKPGP 80

                 ....*..
gi 530410021 343 IVLTVAK 349
Cdd:cd06717   81 ITLTVAK 87

Segment polarity protein dishevelled (Dsh) C terminal; This domain family is found in eukaryotes, and is typically between 177 and 207 amino acids in length. The family is found in association with pfam00778, pfam02377, pfam00610, pfam00595. The segment polarity gene dishevelled (dsh) is required for pattern formation of the embryonic segments. It is involved in the determination of body organization through the Wingless pathway (analogous to the Wnt-1 pathway).

                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 530410021  511 YLVNLSLNDNDGSSGASDQDTLAPLP--GATPWPLLPTFSYQYPAPHPYSPQPPPYHELSSYTYGGGSASSQHSEGSRSS 588
Cdd:pfam12316   1 NMANLNLNDDDGSSGASDQDTLAPLPhpGTAPWPMGQFFPYQYPPPPPYTQFPPYHEDSSSYSGGGGSAGSQHSEGSRSS 80

                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 530410021  589 GSTRSDGGAGRTGRPEERApesKSGSGSESEPSSRGGSLRRGGEASGTSDGGPPPSRGSTG-GAPNLRAHPGLHPYGPPP 667
Cdd:pfam12316  81 GSNRSGGGGPRKQKEEKAG---SKGGSGSESESARRSSQRGIRVPAQGSRGSHASSRSSHSlGGGGSRSHHSLHASHAGG 157

                         170       180       190       200       210
                  ....*....|....*....|....*....|....*....|....*....|....*
gi 530410021  668 GMALPYNpmmVVMMPPPPPPVPPAVQPPGAPPVRDLGSVPPELTASRQSFHMAMG 722
Cdd:pfam12316 158 MPLAYYG---PPGLPPPAAAPAASQGPPGAPPGRELASVPPELTASRQSFQMAMG 209

DIX domain; The DIX domain is present in Dishevelled and axin. This domain is involved in homo- and hetero-oligomerization. It is involved in the homo- oligomerization of mouse axin. The axin DIX domain also interacts with the dishevelled DIX domain. The DIX domain has also been called the DAX domain.

                          10        20        30        40        50        60        70
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*..
gi 530410021   13 ETKVIYHLDEEETPYLVKIPVPAERITLGDFKSVLQRPAGAKYFFKSMDQDFGVVKEEISDDNARLPCFNGRVVSWL 89
Cdd:pfam00778   1 ETKVIYYLCDEPVPYRIKIHKPGGQITLGDFKELLPKKGNYRYFFKTLDPEFGTVKEEITDDDDILPLWEGKIVAKV 77

Domain found in Dishevelled, Egl-10, and Pleckstrin; Domain of unknown function present in signalling proteins that contain PH, rasGEF, rhoGEF, rhoGAP, RGS, PDZ domains. DEP domain in Drosophila dishevelled is essential to rescue planar polarity defects and induce JNK signalling (Cell 94, 109-118).

                           10        20        30        40        50        60        70
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*...
gi 530410021   429 PESGLEVRDRMWLKITIPNAFLGSDVVDWLYHHVEgFPERREARKYASGLLKAGLIRHTV--NKITFS-EQCYYVFGD 503
Cdd:smart00049   1 PETGLKLRDRKYFLKTYPNCFTGSELVDWLMDNLE-IIDREEAVHLGQLLLDEGLIHHVNgpNKHTFKdSKALYRFTT 77

PDZ domain; PDZ domains are found in diverse signaling proteins.

                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 530410021  263 TVTLNMEKYNFLGISIVGQSNERgDGGIYIGSIMKGGAVAADGrIEPGDMLLQVNDMNFENMSNDDAVRVLRDivhKPGP 342
Cdd:pfam00595   1 QVTLEKDGRGGLGFSLKGGSDQG-DPGIFVSEVLPGGAAEAGG-LKVGDRILSINGQDVENMTHEEAVLALKG---SGGK 75

                  ....*.
gi 530410021  343 IVLTVA 348
Cdd:pfam00595  76 VTLTIL 81

PDZ domain of segment polarity protein dishevelled homolog DVL1, DVL2, DVL3, and related domains; PDZ (PSD-95 (Postsynaptic density protein 95), Dlg (Discs large protein), and ZO-1 (Zonula occludens-1)) domain of DVL1-3, and related domains. The dishevelleds (DVL1, 2 and 3 in humans) act downstream of Frizzled (FZD) receptors in both the canonical and non-canonical WNT signaling pathway; they bind the cytoplasmic C-terminus of frizzled family members and transduce the Wnt signal to down-stream effectors. They bind to several proteins known to modulate Wnt signaling. Binding partners of the DVL1 PDZ domain include nucleoredoxin (NXN), Van Gogh-like (VANGL1), Wnt receptor RYK, Dapper 1 (DACT1), Frizzled7 (FZD7), transmembrane protein 88 (TMEM88), Daple (dishevelled-associating protein with a high frequency of leucines), also known as Ccdc88c), and cysteine-rich protein Idax. The DVL2 PDZ domain has been shown to bind the nuclear export signal sequence of the DVL2 protein. PDZ domains usually bind in a sequence-specific manner to short peptide sequences located at the C-terminal end of their partner proteins (known as PDZ binding motifs). The PDZ superfamily includes canonical PDZ domains as well as those with circular permutations and domain swapping mediated by beta-strands. This DVL-like family domain is a canonical PDZ domain containing six beta-strands A-F and two alpha-helices (alpha-helix 1 and 2), arranged in the order: beta-strands A, B, C, alpha-helix 1, beta-strands D, E, alpha-helix 2 and beta-strand F.

                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 530410021 263 TVTLNMEKYNFLGISIVGQSNERGDGGIYIGSIMKGGAVAADGRIEPGDMLLQVNDMNFENMSNDDAVRVLRDIVHKPGP 342
Cdd:cd06717    1 TVTLNMEKVNFLGISIVGQSNERGDGGIYVGSIMKGGAVAADGRIEPGDMILQVNDISFENMSNDDAVRVLREAVHKPGP 80

                 ....*..
gi 530410021 343 IVLTVAK 349
Cdd:cd06717   81 ITLTVAK 87

Segment polarity protein dishevelled (Dsh) C terminal; This domain family is found in eukaryotes, and is typically between 177 and 207 amino acids in length. The family is found in association with pfam00778, pfam02377, pfam00610, pfam00595. The segment polarity gene dishevelled (dsh) is required for pattern formation of the embryonic segments. It is involved in the determination of body organization through the Wingless pathway (analogous to the Wnt-1 pathway).

                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 530410021  511 YLVNLSLNDNDGSSGASDQDTLAPLP--GATPWPLLPTFSYQYPAPHPYSPQPPPYHELSSYTYGGGSASSQHSEGSRSS 588
Cdd:pfam12316   1 NMANLNLNDDDGSSGASDQDTLAPLPhpGTAPWPMGQFFPYQYPPPPPYTQFPPYHEDSSSYSGGGGSAGSQHSEGSRSS 80

                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 530410021  589 GSTRSDGGAGRTGRPEERApesKSGSGSESEPSSRGGSLRRGGEASGTSDGGPPPSRGSTG-GAPNLRAHPGLHPYGPPP 667
Cdd:pfam12316  81 GSNRSGGGGPRKQKEEKAG---SKGGSGSESESARRSSQRGIRVPAQGSRGSHASSRSSHSlGGGGSRSHHSLHASHAGG 157

                         170       180       190       200       210
                  ....*....|....*....|....*....|....*....|....*....|....*
gi 530410021  668 GMALPYNpmmVVMMPPPPPPVPPAVQPPGAPPVRDLGSVPPELTASRQSFHMAMG 722
Cdd:pfam12316 158 MPLAYYG---PPGLPPPAAAPAASQGPPGAPPGRELASVPPELTASRQSFQMAMG 209

DIX domain; The DIX domain is present in Dishevelled and axin. This domain is involved in homo- and hetero-oligomerization. It is involved in the homo- oligomerization of mouse axin. The axin DIX domain also interacts with the dishevelled DIX domain. The DIX domain has also been called the DAX domain.

                          10        20        30        40        50        60        70
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*..
gi 530410021   13 ETKVIYHLDEEETPYLVKIPVPAERITLGDFKSVLQRPAGAKYFFKSMDQDFGVVKEEISDDNARLPCFNGRVVSWL 89
Cdd:pfam00778   1 ETKVIYYLCDEPVPYRIKIHKPGGQITLGDFKELLPKKGNYRYFFKTLDPEFGTVKEEITDDDDILPLWEGKIVAKV 77

canonical PDZ domain; Canonical PDZ (PSD-95 (Postsynaptic density protein 95), Dlg (Discs large protein), and ZO-1 (Zonula occludens-1)) domain. PDZ domains usually bind to short specific peptide sequences located at the C-terminal end of their partner proteins known as PDZ binding motifs. These domains can also interact with internal peptide motifs and certain lipids, and can take part in a head-to-tail oligomerization with other PDZ domains. The PDZ superfamily includes canonical PDZ domains as well as those with circular permutations and domain swapping mediated by beta-strands. The canonical PDZ domain contains six beta-strands A-F and two alpha-helices (alpha-helix 1 and 2), arranged in the order: beta-strands A, B, C, alpha-helix 1, beta-strands D, E, alpha-helix 2 and beta-strand F.

                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 530410021 263 TVTLNMEKYNFLGISIVGQSNerGDGGIYIGSIMKGGAVAADGRIEPGDMLLQVNDMNFENMSNDDAVRVLRDIvhkPGP 342
Cdd:cd00136    1 TVTLEKDPGGGLGFSIRGGKD--GGGGIFVSRVEPGGPAARDGRLRVGDRILEVNGVSLEGLTHEEAVELLKSA---GGE 75

                 ....*.
gi 530410021 343 IVLTVA 348
Cdd:cd00136   76 VTLTVR 81

DEP domain, named after Dishevelled, Egl-10, and Pleckstrin, where this domain was first discovered. The function of this domain is still not clear, but it is believed to be important for the membrane association of the signaling proteins in which it is present. New studies show that the DEP domain of Sst2, a yeast RGS protein is necessary and sufficient for receptor interaction.

                         10        20        30        40        50        60        70
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*
gi 530410021 426 MAAPESGLEVRDRMWLKITIPNAFLGSDVVDWLYHHVEGfPERREARKYASGLLKAGLIRHTVN-KITFSEQCYY 499
Cdd:cd04371    6 MLDSDSGVPIKDRKYHLKTYPNCFTGSELVDWLLDNLEA-ITREEAVELGQALLKHGLIHHVSDdKHTFRDSYAL 79

PDZ domain; PDZ domains are found in diverse signaling proteins.

                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 530410021  263 TVTLNMEKYNFLGISIVGQSNERgDGGIYIGSIMKGGAVAADGrIEPGDMLLQVNDMNFENMSNDDAVRVLRDivhKPGP 342
Cdd:pfam00595   1 QVTLEKDGRGGLGFSLKGGSDQG-DPGIFVSEVLPGGAAEAGG-LKVGDRILSINGQDVENMTHEEAVLALKG---SGGK 75

                  ....*.
gi 530410021  343 IVLTVA 348
Cdd:pfam00595  76 VTLTIL 81

PDZ domain 3 of partitioning defective 3 (Par3), and related domains; PDZ (PSD-95 (Postsynaptic density protein 95), Dlg (Discs large protein), and ZO-1 (Zonula occludens-1)) domain 3 of Par3 (or PAR3 or Par-3, also known as Atypical PKC isotype-specific-interacting protein, ASIP, Drosophila Bazooka) and related domains. Par3 is a scaffold protein involved in organizing cell polarity across animals. Par3 binds numerous molecules both for its recruitment to one pole of the cell and for downstream contributions to polarized cell function. It regulates cell polarity by targeting the Par complex proteins Par6 and atypical protein kinase C (aPKC) to specific cortical sites. Physical interactions between Par-3 and the Par complex include Par3 PDZ domain 1 binding to the Par6 PDZ domain, Par3 PDZ domain 1 and PDZ domain 3 binding the Par6's PDZ-binding motif, and an interaction with an undefined region of aPKC that requires both Par3 PDZ2 and PDZ3. The PDZ domains of Par3 have also been implicated as potential phosphoinositide signaling integrators, since its second PDZ domain binds to phosphoinositides, and the third PDZ interacts with phosphoinositide phosphatase PTEN. PDZ domains usually bind in a sequence-specific manner to short peptide sequences located at the C-terminal end of their partner proteins (known as PDZ binding motifs). The PDZ superfamily includes canonical PDZ domains as well as those with circular permutations and domain swapping mediated by beta-strands. This Par3 family PDZ3 domain is a canonical PDZ domain containing six beta-strands A-F and two alpha-helices (alpha-helix 1 and 2), arranged in the order: beta-strands A, B, C, alpha-helix 1, beta-strands D, E, alpha-helix 2 and beta-strand F.

                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 530410021 261 IITVTLNMEKYNFLGISIVGQ-----SNERGDGGIYIGSIMKGGAVAADGRIEPGDMLLQVNDMNFENMSNDDAVRVLRD 335
Cdd:cd23059    5 TFEIPLNDTGSAGLGVSVKGKtskedNGGKADLGIFIKSIIHGGAASKDGRLRVNDQLIAVNGESLLGLTNSEAMETLRR 84

                         90
                 ....*....|....*....
gi 530410021 336 IVH----KPGPIVLTVAKC 350
Cdd:cd23059   85 AMStegnIRGMIQLVVARR 103

PDZ domain of afadin (AFDN), and related domains; PDZ (PSD-95 (Postsynaptic density protein 95), Dlg (Discs large protein), and ZO-1 (Zonula occludens-1)) domain of afadin (AFDN, also known as ALL1-fused gene from chromosome 6 protein (AF6) and MLLT4), and related domains. AFDN belongs to the adhesion system, probably together with the E-cadherin-catenin system, that plays a role in the organization of homotypic, interneuronal, and heterotypic cell-cell adherens junctions. The AFDN PDZ domain interaction partners include poliovirus receptor-related protein PRR2/nectin, the junctional adhesion molecule (JAM), the breakpoint-cluster-region protein (BCR), connexin36 (Cx36), and a subset of Eph-related receptor tyrosine kinases; it can also bind low molecular weight ligands, in competition with a natural peptide ligand. Other AFDN-binding proteins have been identified. PDZ domains usually bind in a sequence-specific manner to short peptide sequences located at the C-terminal end of their partner proteins (known as PDZ binding motifs). The PDZ superfamily includes canonical PDZ domains as well as those with circular permutations and domain swapping mediated by beta-strands. This AFDN family domain is a canonical PDZ domain containing six beta-strands A-F and two alpha-helices (alpha-helix 1 and 2), arranged in the order: beta-strands A, B, C, alpha-helix 1, beta-strands D, E, alpha-helix 2 and beta-strand F.

                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 530410021 261 IITVTLNMEKyNFLGISIVGQsneRGDG----GIYIGSIMKGGAVAADGRIEPGDMLLQVNDMNFENMSNDDAVRVLRdi 336
Cdd:cd06789    3 IITVTLKKVG-NGMGLSIVAA---KGAGqdklGIYIKSVVKGGAADLDGRLQAGDQLLSVDGHSLVGLSQERAAELMT-- 76

                         90
                 ....*....|....
gi 530410021 337 vhKPGPIV-LTVAK 349
Cdd:cd06789   77 --KTGSVVtLEVAK 88

PDZ domain 3 of multi-PDZ-domain protein 1 (MUPP1) and PATJ (protein-associated tight junction) and related domains; PDZ (PSD-95 (Postsynaptic density protein 95), Dlg (Discs large protein), and ZO-1 (Zonula occludens-1)) domain 3 of MUPP1 and PATJ, and related domains. MUPP1 and PATJ serve as scaffolding proteins linking different proteins and protein complexes involved in the organization of tight junctions and epithelial polarity. MUPP1 contains an L27 (Lin-2 and Lin-7 binding) domain and 13 PDZ domains. PATJ (also known as INAD-like) contains an L27 domain and ten PDZ domains. MUPP1 and PATJ share several binding partners, including junctional adhesion molecules (JAM), zonula occludens (ZO)-3, Pals1 (protein associated with Lin-7), Par (partitioning defective)-6 proteins, and nectins (adherence junction adhesion molecules). PATJ lacks 3 PDZ domains seen in MUPP1: PDZ6, 9, and 13; consequently, MUPP1 PDZ7 and 8 align with PATJ PDZ6 and 7; and MUPP1 PDZ domains 10-12 align with PATJ PDZ domains 8-10. PDZ domains usually bind in a sequence-specific manner to short peptide sequences located at the C-terminal end of their partner proteins (known as PDZ binding motifs). The PDZ superfamily includes canonical PDZ domains as well as those with circular permutations and domain swapping mediated by beta-strands. This MUPP1-like family domain is a canonical PDZ domain containing six beta-strands A-F and two alpha-helices (alpha-helix 1 and 2), arranged in the order: beta-strands A, B, C, alpha-helix 1, beta-strands D, E, alpha-helix 2 and beta-strand F.

                         10        20        30        40        50        60        70
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....
gi 530410021 274 LGISIVGQSNERGDG---GIYIGSIMKGGAVAADGRIEPGDMLLQVNDMNFENMSNDDAVRVLRdivHKPGPIVLTVAK 349
Cdd:cd06791   14 LGITIAGYVGEKASGelsGIFVKSIIPGSAADQDGRIQVNDQIIAVDGVNLQGFTNQEAVEVLR---NTGQVVHLTLAR 89

PDZ domain 2 of human discs large homolog 1 (Dlg1), Dlg2, and Dlg4, Drosophila disc large (Dlg), and related domains; PDZ (PSD-95 (Postsynaptic density protein 95), Dlg (Discs large protein), and ZO-1 (Zonula occludens-1)) domain 1 of Drosophila Dlg1, human Dlg1,2, and 4 and related domains. Dlg1 (also known as synapse-associated protein Dlg197 or SAP-97), Dlg2 (also known as channel-associated protein of synapse-110, postsynaptic density protein 93, or PSD-93), Dlg4 (also known as postsynaptic density protein 95, PSD-95, synapse-associated protein 90, or SAP-90) each have 3 PDZ domains and belong to the membrane-associated guanylate kinase family. Dlg1 regulates antigen receptor signaling and cell polarity in lymphocytes, B-cell proliferation and antibody production, and TGFalpha bioavailability; its PDZ3 domain binds pro-TGFalpha, and its PDZ2 domain binds the TACE metalloprotease responsible for cleaving pro-TGFalpha to a soluble form. Dlg2 is involved in N-methyl-D-aspartate (NMDA) receptor signaling. It regulates surface expression of NMDA receptors in dorsal horn neurons of the spinal cord, and it also interacts with NMDA receptor subunits and with Shaker-type K+ channel subunits to cluster into a channel complex. Dlg4 PDZ1 domain binds NMDA receptors, and its PDZ2 domain binds neuronal nitric oxide synthase (nNOS), forming a complex in neurons. The Drosophila Scribble complex (Scribble, Dlg, and lethal giant larvae) plays a role in apico-basal cell polarity, and in other forms of polarity, including regulation of the actin cytoskeleton, cell signaling and vesicular trafficking, and in tumor development. Postsynaptic targeting of Drosophila DLG requires interactions mediated by the first two PDZ domains. PDZ domains usually bind in a sequence-specific manner to short peptide sequences located at the C-terminal end of their partner proteins (known as PDZ binding motifs). The PDZ superfamily includes canonical PDZ domains as well as those with circular permutations and domain swapping mediated by beta-strands. This Dlg-like family PDZ2 domain is a canonical PDZ domain containing six beta-strands A-F and two alpha-helices (alpha-helix 1 and 2), arranged in the order: beta-strands A, B, C, alpha-helix 1, beta-strands D, E, alpha-helix 2 and beta-strand F.

                         10        20        30        40        50        60
                 ....*....|....*....|....*....|....*....|....*....|....*....|....
gi 530410021 274 LGISIVG-QSNER--GDGGIYIGSIMKGGAVAADGRIEPGDMLLQVNDMNFENMSNDDAVRVLR 334
Cdd:cd06724   11 LGFSIAGgVGNQHipGDNGIYVTKIIEGGAAQKDGRLQVGDKLLAVNDVSLEEVTHEEAVAALK 74

PDZ domain 1 of human Ligand of Numb protein X 1 (LNX1) and LNX2, and related domains; PDZ (PSD-95 (Postsynaptic density protein 95), Dlg (Discs large protein), and ZO-1 (Zonula occludens-1)) domain 1 of LNX1 (also known as PDZ domain-containing RING finger protein 2, PDZRN2) and LNX2 (also known as PDZ domain-containing RING finger protein 1, PDZRN1), and related domains. LNX1 and LNX2 are Ring (Really Interesting New Gene) finger and PDZ domain-containing E3 ubiquitin ligases that bind to the cell fate determinant protein NUMB and mediate its ubiquitination. LNX1 can ubiquitinate a number of other ligands including PPFIA1, KLHL11, KIF7 and ERC2. LNX1 and LNX2 each have four PDZ domains. PDZ domains usually bind in a sequence-specific manner to short peptide sequences located at the C-terminal end of their partner proteins (known as PDZ binding motifs). The PDZ superfamily includes canonical PDZ domains as well as those with circular permutations and domain swapping mediated by beta-strands. This LNX family PDZ1 domain is a canonical PDZ domain containing six beta-strands A-F and two alpha-helices (alpha-helix 1 and 2), arranged in the order: beta-strands A, B, C, alpha-helix 1, beta-strands D, E, alpha-helix 2 and beta-strand F.

                         10        20        30        40        50        60        70
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*
gi 530410021 274 LGISIVGqSNERGDGGIYIGSIMKGGAVAADGRIEPGDMLLQVNDMNFENMSNDDAVRVLRdivhKPGPIV-LTV 347
Cdd:cd06677   17 LGISIVG-GNDTPLINIVIQEVYRDGVIARDGRLLPGDQILEVNGVDISNVTHSQARSVLR----QPCPVLrLTV 86

PDZ domain 10 of multi-PDZ-domain protein 1 (MUPP1), domain 8 of PATJ (protein-associated tight junction) and similar domains; PDZ (PSD-95 (Postsynaptic density protein 95), Dlg (Discs large protein), and ZO-1 (Zonula occludens-1)) domain 10 of MUPP1, PDZ domain 8 of PATJ, and related domains. MUPP1 and PATJ serve as scaffolding proteins linking different proteins and protein complexes involved in the organization of tight junctions and epithelial polarity. MUPP1 contains an L27 (Lin-2 and Lin-7 binding) domain and 13 PDZ domains. PATJ (also known as INAD-like) contains an L27 domain and ten PDZ domains. MUPP1 and PATJ share several binding partners, including junctional adhesion molecules (JAM), zonula occludens (ZO)-3, Pals1 (protein associated with Lin-7), Par (partitioning defective)-6 proteins, and nectins (adherence junction adhesion molecules). PATJ lacks 3 PDZ domains seen in MUPP1: PDZ6, 9, and 13; consequently, MUPP1 PDZ7 and 8 align with PATJ PDZ6 and 7; and MUPP1 PDZ domains 10-12 align with PATJ PDZ domains 8-10. PDZ domains usually bind in a sequence-specific manner to short peptide sequences located at the C-terminal end of their partner proteins (known as PDZ binding motifs). The PDZ superfamily includes canonical PDZ domains as well as those with circular permutations and domain swapping mediated by beta-strands. This MUPP1-like family PDZ10 domain is a canonical PDZ domain containing six beta-strands A-F and two alpha-helices (alpha-helix 1 and 2), arranged in the order: beta-strands A, B, C, alpha-helix 1, beta-strands D, E, alpha-helix 2 and beta-strand F.

                         10        20        30        40        50        60
                 ....*....|....*....|....*....|....*....|....*....|....*....|.
gi 530410021 274 LGISIVGQSNERgDGGIYIGSIMKGGAVAADGRIEPGDMLLQVNDMNFENMSNDDAVRVLR 334
Cdd:cd06673   15 LGLSIVGGSDTL-LGAIIIHEVYEDGAAAKDGRLWAGDQILEVNGEDLRKATHDEAINVLR 74

PDZ domain 13 of multi-PDZ-domain protein 1 (MUPP1) and related domains; PDZ (PSD-95 (Postsynaptic density protein 95), Dlg (Discs large protein), and ZO-1 (Zonula occludens-1)) domain 13 of MUPP1. MUPP1 and PATJ serve as scaffolding proteins linking different proteins and protein complexes involved in the organization of tight junctions and epithelial polarity. MUPP1 contains an L27 (Lin-2 and Lin-7 binding) domain and 13 PDZ domains. PATJ (also known as INAD-like) contains an L27 domain and ten PDZ domains. PATJ lacks 3 PDZ domains seen in MUPP1: PDZ6, PDZ9, and PDZ13. This MuPP1-like PDZ13 domain is therefore absent from PATJ. MUPP1 and PATJ share several binding partners, including junctional adhesion molecules (JAM), zonula occludens (ZO)-3, Pals1 (protein associated with Lin-7), Par (partitioning defective)-6 proteins, and nectins (adherence junction adhesion molecules). PDZ domains usually bind in a sequence-specific manner to short peptide sequences located at the C-terminal end of their partner proteins (known as PDZ binding motifs). The PDZ superfamily includes canonical PDZ domains as well as those with circular permutations and domain swapping mediated by beta-strands. This MUPP1-like family PDZ13 domain is a canonical PDZ domain containing six beta-strands A-F and two alpha-helices (alpha-helix 1 and 2), arranged in the order: beta-strands A, B, C, alpha-helix 1, beta-strands D, E, alpha-helix 2 and beta-strand F.

                         10        20        30        40        50        60        70
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*
gi 530410021 274 LGISIVG-QSNERGDGGIYIGSIMKGGAVAADGRIEPGDMLLQVNDMNFENMSNDDAVRVLRDivhKPGPIVLTV 347
Cdd:cd06676   11 LGFSIVGgFGSPHGDLPIYVKTVFEKGAAAEDGRLKRGDQILAVNGESLEGVTHEEAVNILKK---TKGTVTLTV 82

PDZ1 domain of human syntaxin-binding protein 4 (STXBP4), PDZ2 domain of Gallus gallus uncharacterized STXBP4 isoform X1, and related domains; PDZ (PSD-95 (Postsynaptic density protein 95), Dlg (Discs large protein), and ZO-1 (Zonula occludens-1)) domain 1 of human syntaxin-binding protein 4 (STXBP4), PDZ2 domain of Gallus gallus uncharacterized STXBP4 isoform X1, and related domains. Human STXBP4 (also known as Synip) includes a single PDZ domain, a coiled-coil domain, and a WW domain (named for its two conserved tryptophans); Gallus gallus STXBP4 isoform X1 contains 2 PDZ domains (PDZ1 and PDZ2). Human STXBP4 plays a role in the translocation of transport vesicles from the cytoplasm to the plasma membrane: insulin induces the dissociation of the STXBP4 and STX4 complex liberating STX4 to interact with Vamp2, and to form the SNARE complex thereby promoting vesicle fusion. It may also play a role in the regulation of insulin release by pancreatic beta cells after stimulation by glucose. Human STXBP4 is also known to physically associate with a prominent isoform of TP63 (deltaNp63alpha 9) whose overexpression promotes squamous cell carcinoma development, and in doing so prevents degradation of this isoform by the Cdc20-APC/C complex, Itch, and RACK1. PDZ domains usually bind in a sequence-specific manner to short peptide sequences located at the C-terminal end of their partner proteins (known as PDZ binding motifs). The PDZ superfamily includes canonical PDZ domains as well as those with circular permutations and domain swapping mediated by beta-strands. This STXBP4-like family domain is a canonical PDZ domain containing six beta-strands A-F and two alpha-helices (alpha-helix 1 and 2), arranged in the order: beta-strands A, B, C, alpha-helix 1, beta-strands D, E, alpha-helix 2 and beta-strand F.

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                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 530410021 258 SLNIITVTlnmeKYNFLGISIVGQSNeRGDG-GIYIGSIMKGGAVAADGRIEPGDMLLQVNDMNFENMSNDDAVRVLRDI 336
Cdd:cd06698    1 GIQLITVA----KSTGLGLSIVGGIN-RPEGpMVFIQEVIPGGDCYKDGRLRPGDQLVSINKESLIGVTLEEAKSILTRA 75

                 ....*...
gi 530410021 337 VHKPGPIV 344
Cdd:cd06698   76 KLRSESNV 83

PDZ domain 4 of PDZ domain containing 2 (PDZD2), PDZ domain 2 of human pro-interleukin-16 (isoform 1, 1332 AA), and related domains; PDZ (PSD-95 (Postsynaptic density protein 95), Dlg (Discs large protein), and ZO-1 (Zonula occludens-1)) domain 4 of PDZD2, also known as KIAA0300, PIN-1, activated in prostate cancer (AIPC) and PDZ domain-containing protein 3 (PDZK3). PDZD2 has seven PDZ domains. PDZD2 is expressed at exceptionally high levels in the pancreas and certain cancer tissues, such as prostate cancer. It promotes the proliferation of insulinoma cells and is upregulated during prostate tumorigenesis. In osteosarcoma (OS), the microRNA miR-363 acts as a tumor suppressor by inhibiting PDZD2. This family also includes the second PDZ domain (PDZ2) of human pro-interleukin-16 (isoform 1, also known as nPro-Il-16; 1332 amino-acid protein). Precursor IL-16 is cleaved to produce pro-IL-16 and mature IL-16 (derived from the C-terminal 121 AA). Pro-IL-16 functions as a regulator of T cell growth; mature IL-16 is a CD4 ligand that induces chemotaxis and CD25 expression in CD4+ T cells. IL-16 bioactivity has been closely associated with the progression of several different cancers PDZ domains usually bind in a sequence-specific manner to short peptide sequences located at the C-terminal end of their partner proteins (known as PDZ binding motifs). The PDZ superfamily includes canonical PDZ domains as well as those with circular permutations and domain swapping mediated by beta-strands. This PDZD2-like family PDZ4 domain is a canonical PDZ domain containing six beta-strands A-F and two alpha-helices (alpha-helix 1 and 2), arranged in the order: beta-strands A, B, C, alpha-helix 1, beta-strands D, E, alpha-helix 2 and beta-strand F.

                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 530410021 261 IITVTLNMEKYNFLGISIVGQSNERGDGGIYIGSIMKGGAVAADGRIEPGDMLLQVNDMNFENMSNDDAVRVLRDIvhKP 340
Cdd:cd06760    4 IMEVTLNKEPGVGLGIGLCCLPLENDIPGIFIHHLSPGSVAHMDGRLRRGDQILEINGTSLRNVTLNEAYAILSQC--KP 81

                 ....*....
gi 530410021 341 GPIVLTVAK 349
Cdd:cd06760   82 GPVTLIISR 90

PDZ domain 1 of protein tyrosine phosphatase non-receptor type 13 (PTPN13), and related domains; PDZ (PSD-95 (Postsynaptic density protein 95), Dlg (Discs large protein), and ZO-1 (Zonula occludens-1)) domain 1 of PTPN13 [also known as Fas-associated protein-tyrosine phosphatase 1 (FAP-1), protein-tyrosine phosphatase 1E (PTP-E1), and protein-tyrosine phosphatase (PTPL1)], and related domains. PTPN13 regulates negative apoptotic signaling and mediates phosphoinositide 3-kinase (PI3K) signaling. PTPN13 has five PDZ domains. Proteins known to interact with PTPN13 PDZ domains include: PLEKHA1 and PLEKHA2 via PTPN13-PDZ domain 1, Fas receptor and thyroid receptor-interacting protein 6 via PTPN13-PDZ domain 2, nerve growth factor receptor and protein kinase N2 via PTPN13-PDZ domain 3, PDZ and LIM domain 4 (PDLIM4) via PTPN13-PDZ domains 2 and 4, and brain calpain-2 via PTPN13-PDZ domains 3, 4 and 5. Calpain-2-mediated PTPN13 fragments may be involved in abnormal tau aggregation and increased risk for Alzheimer's disease. PDZ domains usually bind in a sequence-specific manner to short peptide sequences located at the C-terminal end of their partner proteins (known as PDZ binding motifs). The PDZ superfamily includes canonical PDZ domains as well as those with circular permutations and domain swapping mediated by beta-strands. This PTPN13 family PDZ1 domain is a canonical PDZ domain containing six beta-strands A-F and two alpha-helices (alpha-helix 1 and 2), arranged in the order: beta-strands A, B, C, alpha-helix 1, beta-strands D, E, alpha-helix 2 and beta-strand F.

                         10        20        30        40        50        60        70
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*.
gi 530410021 261 IITVTLNMEKYNFLGISIVG-QSNERGDGGIYIGSIMKGGAVAADGRIEPGDMLLQVNDMNFENMSNDDAVRVLRD 335
Cdd:cd23072    2 ITLVNLKKDAKYGLGFQIVGgEKSGRLDLGIFISSITPGGPADLDGRLKPGDRLISVNDVSLEGLSHDAAVEILQN 77

PDZ domain 1 of human discs large homolog 1 (Dlg1), Dlg2, and Dlg4, Drosophila disc large (Dlg), and related domains; PDZ (PSD-95 (Postsynaptic density protein 95), Dlg (Discs large protein), and ZO-1 (Zonula occludens-1)) domain 1 of Drosophila Dlg1, human Dlg1,2, and 4 and related domains. Dlg1 (also known as synapse-associated protein Dlg197 or SAP-97), Dlg2 (also known as channel-associated protein of synapse-110, postsynaptic density protein 93, or PSD-93), Dlg4 (also known as postsynaptic density protein 95, PSD-95, synapse-associated protein 90, or SAP-90) each have 3 PDZ domains and belong to the membrane-associated guanylate kinase family. Dlg1 regulates antigen receptor signaling and cell polarity in lymphocytes, B-cell proliferation and antibody production, and TGFalpha bioavailability; its PDZ3 domain binds pro-TGFalpha, and its PDZ2 domain binds the TACE metalloprotease responsible for cleaving pro-TGFalpha to a soluble form. Dlg2 is involved in N-methyl-D-aspartate (NMDA) receptor signaling. It regulates surface expression of NMDA receptors in dorsal horn neurons of the spinal cord, and it also interacts with NMDA receptor subunits and with Shaker-type K+ channel subunits to cluster into a channel complex. Dlg4 PDZ1 domain binds NMDA receptors, and its PDZ2 domain binds neuronal nitric oxide synthase (nNOS), forming a complex in neurons. The Drosophila Scribble complex (Scribble, Dlg, and lethal giant larvae) plays a role in apico-basal cell polarity, and in other forms of polarity, including regulation of the actin cytoskeleton, cell signaling and vesicular trafficking, and in tumor development. Postsynaptic targeting of Drosophila DLG requires interactions mediated by the first two PDZ domains. PDZ domains usually bind in a sequence-specific manner to short peptide sequences located at the C-terminal end of their partner proteins (known as PDZ binding motifs). The PDZ superfamily includes canonical PDZ domains as well as those with circular permutations and domain swapping mediated by beta-strands. This Dlg-like family PDZ1 domain is a canonical PDZ domain containing six beta-strands A-F and two alpha-helices (alpha-helix 1 and 2), arranged in the order: beta-strands A, B, C, alpha-helix 1, beta-strands D, E, alpha-helix 2 and beta-strand F.

                         10        20        30        40        50        60        70
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....
gi 530410021 274 LGISIVGQSN---ERGDGGIYIGSIMKGGAVAADGRIEPGDMLLQVNDMNFENMSNDDAVRVLRdivhKPGPIVLTVAK 349
Cdd:cd06723   13 LGFSIAGGTDnphIGDDPSIYITKIIPGGAAAADGRLRVNDIILRVNDVDVRNVTHSVAVEALK----EAGSIVRLYVK 87

PDZ domain 4 of Drosophila Scribble, human Scribble homolog, and related domains; PDZ (PSD-95 (Postsynaptic density protein 95), Dlg (Discs large protein), and ZO-1 (Zonula occludens-1)) domain 4 of Drosophila Scribble (also known as LAP4), human Scribble homolog (also known as hScrib, LAP4, CriB1, ScrB1 and Vartul), and related domains. They belong to the LAP family, which describes proteins that contain either one or four PDZ domains and 16 LRRs (leucine-rich repeats) and function in controlling cell shape, size and subcellular protein localization. In Drosophila, the Scribble complex, comprising Scribble, discs large, and lethal giant larvae, plays a role in apico-basal cell polarity, in other forms of polarity, including regulation of the actin cytoskeleton, cell signaling and vesicular trafficking, and in tumor development. Mammalian Scribble is important in many aspects of cancer development. Scribble and its homologs can be downregulated or overexpressed in cancer; they have a role in cancer beyond their function in loss of cell polarity. PDZ domains usually bind in a sequence-specific manner to short peptide sequences located at the C-terminal end of their partner proteins (known as PDZ binding motifs). The PDZ superfamily includes canonical PDZ domains as well as those with circular permutations and domain swapping mediated by beta-strands. This Scribble-like family PDZ4 domain is a canonical PDZ domain containing six beta-strands A-F and two alpha-helices (alpha-helix 1 and 2), arranged in the order: beta-strands A, B, C, alpha-helix 1, beta-strands D, E, alpha-helix 2 and beta-strand F.

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                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 530410021 274 LGISIVGQSNE-------RGDGGIYIGSIMKGGAVAADGRIEPGDMLLQVNDMNFENMSNDDAVRVLRDI 336
Cdd:cd06701   17 LGISIRGGAKGhagnpldPTDEGIFISKINPDGAAARDGRLKVGQRILEVNGQSLLGATHQEAVRILRSV 86

DEP (Dishevelled, Egl-10, and Pleckstrin) domain found in DEPDC5-like proteins. DEPDC5, in human also known as KIAA0645, is a DEP domain containing protein of unknown function.

                         10        20        30        40        50        60        70
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....
gi 530410021 420 ASVTKAMAAPeSGLEVRDRMWLKITIPNAFLGSDVVDWLYHHVEGFPERREARKYASGLLKAGLIRHTVNKITF 493
Cdd:cd04449    2 AEIAEAMRDP-SGIGIFDRSWHKGLPSNCFIGSEAVSWLINNFEDVDTREEAVELGQELMNEGLIEHVSGRHPF 74

PDZ domain 4 of human Ligand of Numb protein X 1 (LNX1) and LNX2, and related domains; PDZ (PSD-95 (Postsynaptic density protein 95), Dlg (Discs large protein), and ZO-1 (Zonula occludens-1)) domain 4 of LNX1 (also known as PDZ domain-containing RING finger protein 2, PDZRN2)and LNX2 (also known as PDZ domain-containing RING finger protein 1, PDZRN1), and related domains. LNX1 and LNX2 are Ring (Really Interesting New Gene) finger and PDZ domain-containing E3 ubiquitin ligases that bind to the cell fate determinant protein NUMB and mediate its ubiquitination. LNX1 can ubiquitinate a number of other ligands including PPFIA1, KLHL11, KIF7 and ERC2. LNX1 and LNX2 each have four PDZ domains. PDZ domains usually bind in a sequence-specific manner to short peptide sequences located at the C-terminal end of their partner proteins (known as PDZ binding motifs). The PDZ superfamily includes canonical PDZ domains as well as those with circular permutations and domain swapping mediated by beta-strands. This LNX family PDZ4 domain is a canonical PDZ domain containing six beta-strands A-F and two alpha-helices (alpha-helix 1 and 2), arranged in the order: beta-strands A, B, C, alpha-helix 1, beta-strands D, E, alpha-helix 2 and beta-strand F.

                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 530410021 274 LGISIVGQSNE-RGDGGIYIGSIMKGGAVAADGRIEPGDMLLQVNDMNFENMSNDDAVRVLRDIvhkPGPIVLTVAkCWD 352
Cdd:cd06680   13 LGFSIVGGYEEsHGNQPFFVKSIVPGTPAYNDGRLKCGDIILAVNGVSTVGMSHAALVPLLKEQ---RGRVTLTVV-SWP 88

PDZ domain 2 of the canonical isoform 1 of PDZ domain containing 7 (PDZD7), and related domains; PDZ (PSD-95 (Postsynaptic density protein 95), Dlg (Discs large protein), and ZO-1 (Zonula occludens-1)) domain 2 of the long isoform 1 of PDZD7, and related domains. PDZD7 is critical for the organization of Usher syndrome type 2 (USH2) complex. Usher syndrome is the leading cause of hereditary sensory deaf-blindness in humans; USH2 is the most common sub-type. Formation of the USH2 complex is based upon heterodimerization between PDZD7 and whirlin (another PDZ domain-containing protein) and a subsequent dynamic interplay between USH2 proteins via their multiple PDZ domains. The PDZD7 PDZ2 domain binds GPR98 (also known as VLGR1) and usherin (USH2A). PDZD7 and whirlin form heterodimers through their multiple PDZ domains; whirlin and PDZD7 interact with usherin and GPR98 to form an interdependent ankle link complex. PDZD7 also interacts with myosin VIIa. PDZD7 also forms homodimers through its PDZ2 domain. Various isoforms of PDZD7 produced by alternative splicing have been identified; this subgroup includes the second PDZ domain of the canonical isoform of PDZD7- isoform 1. PDZ domains usually bind in a sequence-specific manner to short peptide sequences located at the C-terminal end of their partner proteins (known as PDZ binding motifs). The PDZ superfamily includes canonical PDZ domains as well as those with circular permutations and domain swapping mediated by beta-strands. This PDZD7-like family PDZ2 domain is a canonical PDZ domain containing six beta-strands A-F and two alpha-helices (alpha-helix 1 and 2), arranged in the order: beta-strands A, B, C, alpha-helix 1, beta-strands D, E, alpha-helix 2 and beta-strand F.

                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 530410021 264 VTLNMEKYN-FLGISIVGQSnERGDGgIYIGSIMKGGAVAADGrIEPGDMLLQVNDMNFENMSNDDAVRVLRDIVHkpgp 342
Cdd:cd10834    4 VHLYTTSDDyCLGFNIRGGS-EYGLG-IYVSKVDPGGLAEQNG-IKVGDQILAVNGVSFEDITHSKAVEVLKSQTH---- 76

                 ....*
gi 530410021 343 IVLTV 347
Cdd:cd10834   77 LMLTI 81

PDZ domain 3 of human discs large homolog 1 (Dlg1), Dlg2, and Dlg4, Drosophila disc large (Dlg), and related domains; PDZ (PSD-95 (Postsynaptic density protein 95), Dlg (Discs large protein), and ZO-1 (Zonula occludens-1)) domain 3 of Drosophila Dlg1, human Dlg1, 2, and 4 and related domains. Dlg1 (also known as synapse-associated protein Dlg197; SAP-97), Dlg2 (also known as channel-associated protein of synapse-110; postsynaptic density protein 93, PSD-93), Dlg4 (also known as postsynaptic density protein 95, PSD-95; synapse-associated protein 90, SAP-90) each have 3 PDZ domains and belong to the membrane-associated guanylate kinase family. Dlg1 regulates antigen receptor signaling and cell polarity in lymphocytes, B-cell proliferation and antibody production, and TGFalpha bioavailability; its PDZ3 domain binds pro-TGFalpha, and its PDZ2 domain binds the TACE metalloprotease responsible for cleaving pro-TGFalpha to a soluble form. Dlg2 is involved in N-methyl-D-aspartate (NMDA) receptor signaling, regulating surface expression of NMDA receptors in dorsal horn neurons of the spinal cord; it interacts with NMDA receptor subunits and with Shaker-type K+ channel subunits to cluster into a channel complex. The Dlg4 PDZ1 domain binds NMDA receptors, and its PDZ2 domain binds neuronal nitric oxide synthase (nNOS), forming a complex in neurons. The Drosophila Scribble complex (Scribble, Dlg, and lethal giant larvae) plays a role in apico-basal cell polarity, and in other forms of polarity, including regulation of the actin cytoskeleton, cell signaling and vesicular trafficking, and in tumor development; postsynaptic targeting of Drosophila DLG requires interactions mediated by the first two PDZ domains. PDZ domains usually bind in a sequence-specific manner to short peptide sequences located at the C-terminal end of their partner proteins (known as PDZ binding motifs). The PDZ superfamily includes canonical PDZ domains as well as those with circular permutations and domain swapping mediated by beta-strands. This Dlg-like family PDZ3 domain is a canonical PDZ domain containing six beta-strands A-F and two alpha-helices (alpha-helix 1 and 2), arranged in the order: beta-strands A, B, C, alpha-helix 1, beta-strands D, E, alpha-helix 2 and beta-strand F.

                         10        20        30        40        50        60
                 ....*....|....*....|....*....|....*....|....*....|....*....|.
gi 530410021 274 LGISIVGQSNERGdggIYIGSIMKGGAVAADGRIEPGDMLLQVNDMNFENMSNDDAVRVLR 334
Cdd:cd06795   14 LGFNIVGGEDGEG---IFISFILAGGPADLSGELRRGDQILSVNGVDLRNATHEQAAAALK 71

PDZ domain of syntrophins, and related domains; PDZ (PSD-95 (Postsynaptic density protein 95), Dlg (Discs large protein), and ZO-1 (Zonula occludens-1)) domain of syntrophins (including alpha-1-syntrophin, beta-1-syntrophin, beta-2-syntrophin, gamma-1-syntrophin, and gamma-2-syntrophin), and related domains. Syntrophins play a role in recruiting various signaling molecules into signaling complexes and help provide appropriate spatiotemporal regulation of signaling pathways. They function in cytoskeletal organization and maintenance; as components of the dystrophin-glycoprotein complex (DGC), they help maintain structural integrity of skeletal muscle fibers. They link voltage-gated sodium channels to the actin cytoskeleton and the extracellular matrix, and control the localization and activity of the actin reorganizing proteins such as PI3K, PI(3,4)P2 and TAPP1. Through association with various cytoskeletal proteins within the cells, they are involved in processes such as regulation of focal adhesions, myogenesis, calcium homeostasis, and cell migration. They also have roles in synapse formation and in the organization of utrophin, acetylcholine receptor, and acetylcholinesterase at the neuromuscular synapse. PDZ domains usually bind in a sequence-specific manner to short peptide sequences located at the C-terminal end of their partner proteins (known as PDZ binding motifs). The PDZ superfamily includes canonical PDZ domains as well as those with circular permutations and domain swapping mediated by beta-strands. This syntrophin-like family domain is a canonical PDZ domain containing six beta-strands A-F and two alpha-helices (alpha-helix 1 and 2), arranged in the order: beta-strands A, B, C, alpha-helix 1, beta-strands D, E, alpha-helix 2 and beta-strand F.

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                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 530410021 263 TVTLNMEKYNFLGISIVGQSNERGDggIYIGSIMKGGAVAADGRIEPGDMLLQVNDMNFENMSNDDAVRVLR---DIVhk 339
Cdd:cd06801    2 TVRVVKQDVGGLGISIKGGAEHKMP--ILISKIFKGQAADQTGQLFVGDAILSVNGENLEDATHDEAVQALKnagDEV-- 77

                 ....*...
gi 530410021 340 pgpiVLTV 347
Cdd:cd06801   78 ----TLTV 81

PDZ domain 2 of multi-PDZ-domain protein 1 (MUPP1) and PATJ (protein-associated tight junction) and similar domains; PDZ (PSD-95 (Postsynaptic density protein 95), Dlg (Discs large protein), and ZO-1 (Zonula occludens-1)) domain 2 of MUPP1 and PATJ, and related domains. MUPP1 and PATJ serve as scaffolding proteins linking different proteins and protein complexes involved in the organization of tight junctions and epithelial polarity. MUPP1 contains an L27 (Lin-2 and Lin-7 binding) domain and 13 PDZ domains. PATJ (also known as INAD-like) contains an L27 domain and ten PDZ domains. MUPP1 and PATJ share several binding partners, including junctional adhesion molecules (JAM), zonula occludens (ZO)-3, Pals1 (protein associated with Lin-7), Par (partitioning defective)-6 proteins, and nectins (adherence junction adhesion molecules). PATJ lacks 3 PDZ domains seen in MUPP1: PDZ6, 9, and 13; consequently, MUPP1 PDZ7 and 8 align with PATJ PDZ6 and 7; and MUPP1 PDZ domains 10-12 align with PATJ PDZ domains 8-10. PDZ domains usually bind in a sequence-specific manner to short peptide sequences located at the C-terminal end of their partner proteins (known as PDZ binding motifs). The PDZ superfamily includes canonical PDZ domains as well as those with circular permutations and domain swapping mediated by beta-strands. This MUPP1-like family PDZ2 domain is a canonical PDZ domain containing six beta-strands A-F and two alpha-helices (alpha-helix 1 and 2), arranged in the order: beta-strands A, B, C, alpha-helix 1, beta-strands D, E, alpha-helix 2 and beta-strand F

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gi 530410021 274 LGISIVGQSNergdGGIYIGSIMKGGAVAADGRIEPGDMLLQVNDMNFENMSNDDAVRVLR 334
Cdd:cd06667   12 LGFGIVGGKS----TGVVVKTILPGGVADRDGRLRSGDHILQIGDTNLRGMGSEQVAQVLR 68

PDZ domain 1 of multi-PDZ-domain protein 1 (MUPP1) and PATJ (protein-associated tight junction), and related domains; PDZ (PSD-95 (Postsynaptic density protein 95), Dlg (Discs large protein), and ZO-1 (Zonula occludens-1)) domain 1 of MUPP1 and PATJ, and related domains. MUPP1 and PATJ serve as scaffolding proteins linking different proteins and protein complexes involved in the organization of tight junctions and epithelial polarity. MUPP1 contains an L27 (Lin-2 and Lin-7 binding) domain and 13 PDZ domains. PATJ (also known as INAD-like) contains an L27 domain and ten PDZ domains. MUPP1 and PATJ share several binding partners, including junctional adhesion molecules (JAM), zonula occludens (ZO)-3, Pals1 (protein associated with Lin-7), Par (partitioning defective)-6 proteins, and nectins (adherence junction adhesion molecules). PATJ lacks 3 PDZ domains seen in MUPP1: PDZ6, 9, and 13; consequently, MUPP1 PDZ7 and 8 align with PATJ PDZ6 and 7; and MUPP1 PDZ domains 10-12 align with PATJ PDZ domains 8-10. PDZ domains usually bind in a sequence-specific manner to short peptide sequences located at the C-terminal end of their partner proteins (known as PDZ binding motifs). The PDZ superfamily includes canonical PDZ domains as well as those with circular permutations and domain swapping mediated by beta-strands. This MUPP1-like family PDZ1 domain is a canonical PDZ domain containing six beta-strands A-F and two alpha-helices (alpha-helix 1 and 2), arranged in the order: beta-strands A, B, C, alpha-helix 1, beta-strands D, E, alpha-helix 2 and beta-strand F.

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gi 530410021 274 LGISIVGQSNE-RGDGGIYIGSIMKGGAVAADGRIEPGDMLLQVNDMNFE-NMSNDDAVRVLRDIVhkpGPIVLTVAK 349
Cdd:cd06689   28 LGFSVVGLKSEnRGELGIFVQEIQPGSVAARDGRLKENDQILAINGQPLDqSISHQQAIAILQQAK---GSVELVVAR 102

PDZ domain 7 of PDZ domain containing 2 (PDZD2), PDZ domain 4 of human pro-interleukin-16 (isoform 1, 1332 AA), and related domains; PDZ (PSD-95 (Postsynaptic density protein 95), Dlg (Discs large protein), and ZO-1 (Zonula occludens-1)) domain 7 of PDZD2, also known as KIAA0300, PIN-1, PAPIN, activated in prostate cancer (AIPC) and PDZ domain-containing protein 3 (PDZK3). PDZD2 has seven PDZ domains. PDZD2 is expressed at exceptionally high levels in the pancreas and certain cancer tissues, such as prostate cancer. It promotes the proliferation of insulinoma cells and is upregulated during prostate tumorigenesis. In osteosarcoma (OS), the microRNA miR-363 acts as a tumor suppressor by inhibiting PDZD2. This family include the PDZ domain of the secreted mature form of human interleukin-16 (IL-16); this is the fourth PDZ domain (PDZ4) of human pro-interleukin-16 (isoform 1, also known as nPro-Il-16). Precursor IL-16 is cleaved to produce pro-IL-16 and C-terminal mature IL-16. Pro-IL-16 functions as a regulator of T cell growth; mature IL-16 is a CD4 ligand that induces chemotaxis and CD25 expression in CD4+ T cells. IL-16 bioactivity has been closely associated with the progression of several different cancers PDZ domains usually bind in a sequence-specific manner to short peptide sequences located at the C-terminal end of their partner proteins (known as PDZ binding motifs). The PDZ superfamily includes canonical PDZ domains as well as those with circular permutations and domain swapping mediated by beta-strands. This PDZD2-like family PDZ7 domain is a canonical PDZ domain containing six beta-strands A-F and two alpha-helices (alpha-helix 1 and 2), arranged in the order: beta-strands A, B, C, alpha-helix 1, beta-strands D, E, alpha-helix 2 and beta-strand F.

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gi 530410021 263 TVTLNMEKYNF-LGISIVG-QSNERGDGGIYIGSIMKGGAVAADGRIEPGDMLLQVNDMNFENMSNDDAVRVLRDIvhKP 340
Cdd:cd06763    1 AVTVELEKGSAgLGFSLEGgKGSPLGDRPLTIKRIFKGGAAEQSGVLQVGDEILQINGTSLQGLTRFEAWNIIKSL--PE 78

                 ....*..
gi 530410021 341 GPIVLTV 347
Cdd:cd06763   79 GPVTLLI 85

DEP (Dishevelled, Egl-10, and Pleckstrin) domain found in GPR155-like proteins. GRP155-like proteins, also known as PGR22, contain an N-terminal permease domain, a central transmembrane region and a C-terminal DEP domain. They are orphan receptors of the class B G protein-coupled receptors. Their function is unknown.

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gi 530410021 435 VRDRMWLKITIPNAFLGSDVVDWLYhHVEGFPERREARKYASGLLKAGLIRHTVNKITFSEQ-CYYVF 501
Cdd:cd04443   17 VKDRRCGLRTYKGVFCGCDLVSWLI-EVGLAQDRGEAVLYGRRLLQGGVLQHITNEHHFRDEnLLYRF 83