Class II histone deacetylase complex subunits 2 and 3; This family of class II histone ...
2-310
8.05e-56
Class II histone deacetylase complex subunits 2 and 3; This family of class II histone deacetylase complex subunits HDA2 and HDA3 is found in fungi, The member from S. pombe is referred to as Ccq1 in Swiss:Q10432. These proteins associate with HDA1 to generate the activity of the HDA1 histone deacetylase complex. HDA1 interacts with itself and with the HDA2-HDA3 subcomplex to form a probable tetramer and these interactions are necessary for catalytic activity. The HDA1 histone deacetylase complex is responsible for the deacetylation of lysine residues on the N-terminal part of the core histones (H2A, H2B, H3 and H4). Histone deacetylation gives a tag for epigenetic repression and plays an important role in transcriptional regulation, cell cycle progression and developmental events. HDA2 and HDA3 have a conserved coiled-coil domain towards their C-terminus.
The actual alignment was detected with superfamily member pfam11496:
Pssm-ID: 402894 Cd Length: 281 Bit Score: 190.62 E-value: 8.05e-56
exonuclease SbcC; All proteins in this family for which functions are known are part of an ...
436-625
5.78e-07
exonuclease SbcC; All proteins in this family for which functions are known are part of an exonuclease complex with sbcD homologs. This complex is involved in the initiation of recombination to regulate the levels of palindromic sequences in DNA. This family is based on the phylogenomic analysis of JA Eisen (1999, Ph.D. Thesis, Stanford University). [DNA metabolism, DNA replication, recombination, and repair]
The actual alignment was detected with superfamily member TIGR00618:
Pssm-ID: 129705 [Multi-domain] Cd Length: 1042 Bit Score: 53.05 E-value: 5.78e-07
Class II histone deacetylase complex subunits 2 and 3; This family of class II histone ...
2-310
8.05e-56
Class II histone deacetylase complex subunits 2 and 3; This family of class II histone deacetylase complex subunits HDA2 and HDA3 is found in fungi, The member from S. pombe is referred to as Ccq1 in Swiss:Q10432. These proteins associate with HDA1 to generate the activity of the HDA1 histone deacetylase complex. HDA1 interacts with itself and with the HDA2-HDA3 subcomplex to form a probable tetramer and these interactions are necessary for catalytic activity. The HDA1 histone deacetylase complex is responsible for the deacetylation of lysine residues on the N-terminal part of the core histones (H2A, H2B, H3 and H4). Histone deacetylation gives a tag for epigenetic repression and plays an important role in transcriptional regulation, cell cycle progression and developmental events. HDA2 and HDA3 have a conserved coiled-coil domain towards their C-terminus.
Pssm-ID: 402894 Cd Length: 281 Bit Score: 190.62 E-value: 8.05e-56
exonuclease SbcC; All proteins in this family for which functions are known are part of an ...
436-625
5.78e-07
exonuclease SbcC; All proteins in this family for which functions are known are part of an exonuclease complex with sbcD homologs. This complex is involved in the initiation of recombination to regulate the levels of palindromic sequences in DNA. This family is based on the phylogenomic analysis of JA Eisen (1999, Ph.D. Thesis, Stanford University). [DNA metabolism, DNA replication, recombination, and repair]
Pssm-ID: 129705 [Multi-domain] Cd Length: 1042 Bit Score: 53.05 E-value: 5.78e-07
Inter-Src homology 2 (iSH2) helical domain of Class IA Phosphoinositide 3-kinase Regulatory ...
540-619
9.31e-04
Inter-Src homology 2 (iSH2) helical domain of Class IA Phosphoinositide 3-kinase Regulatory subunit 3, PIK3R3, also called p55gamma; PI3Ks catalyze the transfer of the gamma-phosphoryl group from ATP to the 3-hydroxyl of the inositol ring of D-myo-phosphatidylinositol (PtdIns) or its derivatives. They play an important role in a variety of fundamental cellular processes, including cell motility, the Ras pathway, vesicle trafficking and secretion, immune cell activation, and apoptosis. They are classified according to their substrate specificity, regulation, and domain structure. Class IA PI3Ks are heterodimers of a p110 catalytic (C) subunit and a p85-related regulatory (R) subunit. The R subunit down-regulates PI3K basal activity, stabilizes the C subunit, and plays a role in the activation downstream of tyrosine kinases. All R subunits contain two SH2 domains that flank an intervening helical domain (iSH2), which binds to the N-terminal adaptor-binding domain (ABD) of the catalytic subunit. p55gamma, also called PIK3R3 or p55PIK, also contains a unique N-terminal 24-amino acid residue (N24) that interacts with cell cycle modulators to promote cell cycle progression.
Pssm-ID: 214018 [Multi-domain] Cd Length: 161 Bit Score: 40.42 E-value: 9.31e-04
Class II histone deacetylase complex subunits 2 and 3; This family of class II histone ...
2-310
8.05e-56
Class II histone deacetylase complex subunits 2 and 3; This family of class II histone deacetylase complex subunits HDA2 and HDA3 is found in fungi, The member from S. pombe is referred to as Ccq1 in Swiss:Q10432. These proteins associate with HDA1 to generate the activity of the HDA1 histone deacetylase complex. HDA1 interacts with itself and with the HDA2-HDA3 subcomplex to form a probable tetramer and these interactions are necessary for catalytic activity. The HDA1 histone deacetylase complex is responsible for the deacetylation of lysine residues on the N-terminal part of the core histones (H2A, H2B, H3 and H4). Histone deacetylation gives a tag for epigenetic repression and plays an important role in transcriptional regulation, cell cycle progression and developmental events. HDA2 and HDA3 have a conserved coiled-coil domain towards their C-terminus.
Pssm-ID: 402894 Cd Length: 281 Bit Score: 190.62 E-value: 8.05e-56
exonuclease SbcC; All proteins in this family for which functions are known are part of an ...
436-625
5.78e-07
exonuclease SbcC; All proteins in this family for which functions are known are part of an exonuclease complex with sbcD homologs. This complex is involved in the initiation of recombination to regulate the levels of palindromic sequences in DNA. This family is based on the phylogenomic analysis of JA Eisen (1999, Ph.D. Thesis, Stanford University). [DNA metabolism, DNA replication, recombination, and repair]
Pssm-ID: 129705 [Multi-domain] Cd Length: 1042 Bit Score: 53.05 E-value: 5.78e-07
chromosome segregation protein SMC, common bacterial type; SMC (structural maintenance of ...
416-628
2.44e-05
chromosome segregation protein SMC, common bacterial type; SMC (structural maintenance of chromosomes) proteins bind DNA and act in organizing and segregating chromosomes for partition. SMC proteins are found in bacteria, archaea, and eukaryotes. This family represents the SMC protein of most bacteria. The smc gene is often associated with scpB (TIGR00281) and scpA genes, where scp stands for segregation and condensation protein. SMC was shown (in Caulobacter crescentus) to be induced early in S phase but present and bound to DNA throughout the cell cycle. [Cellular processes, Cell division, DNA metabolism, Chromosome-associated proteins]
Pssm-ID: 274008 [Multi-domain] Cd Length: 1179 Bit Score: 47.74 E-value: 2.44e-05
helix-rich Mycoplasma protein; Members of this family occur strictly within a subset of ...
442-625
8.71e-04
helix-rich Mycoplasma protein; Members of this family occur strictly within a subset of Mycoplasma species. Members average 750 amino acids in length, including signal peptide. Sequences are predicted (Jpred 3) to be almost entirely alpha-helical. These sequences show strong periodicity (consistent with long alpha helical structures) and low complexity rich in D,E,N,Q, and K. Genes encoding these proteins are often found in tandem. The function is unknown.
Pssm-ID: 275316 [Multi-domain] Cd Length: 745 Bit Score: 42.31 E-value: 8.71e-04
Inter-Src homology 2 (iSH2) helical domain of Class IA Phosphoinositide 3-kinase Regulatory ...
540-619
9.31e-04
Inter-Src homology 2 (iSH2) helical domain of Class IA Phosphoinositide 3-kinase Regulatory subunit 3, PIK3R3, also called p55gamma; PI3Ks catalyze the transfer of the gamma-phosphoryl group from ATP to the 3-hydroxyl of the inositol ring of D-myo-phosphatidylinositol (PtdIns) or its derivatives. They play an important role in a variety of fundamental cellular processes, including cell motility, the Ras pathway, vesicle trafficking and secretion, immune cell activation, and apoptosis. They are classified according to their substrate specificity, regulation, and domain structure. Class IA PI3Ks are heterodimers of a p110 catalytic (C) subunit and a p85-related regulatory (R) subunit. The R subunit down-regulates PI3K basal activity, stabilizes the C subunit, and plays a role in the activation downstream of tyrosine kinases. All R subunits contain two SH2 domains that flank an intervening helical domain (iSH2), which binds to the N-terminal adaptor-binding domain (ABD) of the catalytic subunit. p55gamma, also called PIK3R3 or p55PIK, also contains a unique N-terminal 24-amino acid residue (N24) that interacts with cell cycle modulators to promote cell cycle progression.
Pssm-ID: 214018 [Multi-domain] Cd Length: 161 Bit Score: 40.42 E-value: 9.31e-04
chromosome segregation protein SMC, common bacterial type; SMC (structural maintenance of ...
436-618
1.07e-03
chromosome segregation protein SMC, common bacterial type; SMC (structural maintenance of chromosomes) proteins bind DNA and act in organizing and segregating chromosomes for partition. SMC proteins are found in bacteria, archaea, and eukaryotes. This family represents the SMC protein of most bacteria. The smc gene is often associated with scpB (TIGR00281) and scpA genes, where scp stands for segregation and condensation protein. SMC was shown (in Caulobacter crescentus) to be induced early in S phase but present and bound to DNA throughout the cell cycle. [Cellular processes, Cell division, DNA metabolism, Chromosome-associated proteins]
Pssm-ID: 274008 [Multi-domain] Cd Length: 1179 Bit Score: 42.35 E-value: 1.07e-03
Synaptonemal complex protein 1 (SCP-1); Synaptonemal complex protein 1 (SCP-1) is the major ...
462-617
3.94e-03
Synaptonemal complex protein 1 (SCP-1); Synaptonemal complex protein 1 (SCP-1) is the major component of the transverse filaments of the synaptonemal complex. Synaptonemal complexes are structures that are formed between homologous chromosomes during meiotic prophase.
Pssm-ID: 114219 [Multi-domain] Cd Length: 787 Bit Score: 40.48 E-value: 3.94e-03
chromosome segregation protein SMC, primarily archaeal type; SMC (structural maintenance of ...
436-592
5.26e-03
chromosome segregation protein SMC, primarily archaeal type; SMC (structural maintenance of chromosomes) proteins bind DNA and act in organizing and segregating chromosomes for partition. SMC proteins are found in bacteria, archaea, and eukaryotes. It is found in a single copy and is homodimeric in prokaryotes, but six paralogs (excluded from this family) are found in eukarotes, where SMC proteins are heterodimeric. This family represents the SMC protein of archaea and a few bacteria (Aquifex, Synechocystis, etc); the SMC of other bacteria is described by TIGR02168. The N- and C-terminal domains of this protein are well conserved, but the central hinge region is skewed in composition and highly divergent. [Cellular processes, Cell division, DNA metabolism, Chromosome-associated proteins]
Pssm-ID: 274009 [Multi-domain] Cd Length: 1164 Bit Score: 40.05 E-value: 5.26e-03
Inter-Src homology 2 (iSH2) helical domain of Class IA Phosphoinositide 3-kinase Regulatory ...
540-619
5.32e-03
Inter-Src homology 2 (iSH2) helical domain of Class IA Phosphoinositide 3-kinase Regulatory subunit 1, PIK3R1, also called p85alpha; PI3Ks catalyze the transfer of the gamma-phosphoryl group from ATP to the 3-hydroxyl of the inositol ring of D-myo-phosphatidylinositol (PtdIns) or its derivatives. They play an important role in a variety of fundamental cellular processes, including cell motility, the Ras pathway, vesicle trafficking and secretion, immune cell activation and apoptosis. They are classified according to their substrate specificity, regulation, and domain structure. Class IA PI3Ks are heterodimers of a p110 catalytic (C) subunit and a p85-related regulatory (R) subunit. The R subunit down-regulates PI3K basal activity, stabilizes the C subunit, and plays a role in the activation downstream of tyrosine kinases. All R subunits contain two SH2 domains that flank an intervening helical domain (iSH2), which binds to the N-terminal adaptor-binding domain (ABD) of the catalytic subunit. In addition, p85alpha, also called PIK3R1, contains N-terminal SH3 and GAP domains. p85alpha carry functions independent of its PI3K regulatory role. It can independently stimulate signaling pathways involved in cytoskeletal rearrangements. Insulin-sensitive tissues express splice variants of the PIK3R1 gene, p50alpha and p55alpha, which may play important roles in insulin signaling during lipid and glucose metabolism. Mice deficient with PIK3R1 die perinatally, indicating its importance in development.
Pssm-ID: 214017 [Multi-domain] Cd Length: 161 Bit Score: 38.14 E-value: 5.32e-03
Inter-Src homology 2 (iSH2) helical domain of Class IA Phosphoinositide 3-kinase Regulatory ...
540-619
8.90e-03
Inter-Src homology 2 (iSH2) helical domain of Class IA Phosphoinositide 3-kinase Regulatory subunit 2, PIK3R2, also called p85beta; PI3Ks catalyze the transfer of the gamma-phosphoryl group from ATP to the 3-hydroxyl of the inositol ring of D-myo-phosphatidylinositol (PtdIns) or its derivatives. They play an important role in a variety of fundamental cellular processes, including cell motility, the Ras pathway, vesicle trafficking and secretion, immune cell activation, and apoptosis. They are classified according to their substrate specificity, regulation, and domain structure. Class IA PI3Ks are heterodimers of a p110 catalytic (C) subunit and a p85-related regulatory (R) subunit. The R subunit down-regulates PI3K basal activity, stabilizes the C subunit, and plays a role in the activation downstream of tyrosine kinases. All R subunits contain two SH2 domains that flank an intervening helical domain (iSH2), which binds to the N-terminal adaptor-binding domain (ABD) of the catalytic subunit. p85beta, also called PIK3R2, contains N-terminal SH3 and GAP domains. It is expressed ubiquitously but at lower levels than p85alpha. Its expression is increased in breast and colon cancer, correlates with tumor progression, and enhanced invasion. During viral infection, the viral nonstructural (NS1) protein binds p85beta specifically, which leads to PI3K activation and the promotion of viral replication. Mice deficient with PIK3R2 develop normally and exhibit moderate metabolic and immunological defects.
Pssm-ID: 214019 [Multi-domain] Cd Length: 161 Bit Score: 37.37 E-value: 8.90e-03
helix-rich Mycoplasma protein; Members of this family occur strictly within a subset of ...
442-627
1.00e-02
helix-rich Mycoplasma protein; Members of this family occur strictly within a subset of Mycoplasma species. Members average 750 amino acids in length, including signal peptide. Sequences are predicted (Jpred 3) to be almost entirely alpha-helical. These sequences show strong periodicity (consistent with long alpha helical structures) and low complexity rich in D,E,N,Q, and K. Genes encoding these proteins are often found in tandem. The function is unknown.
Pssm-ID: 275316 [Multi-domain] Cd Length: 745 Bit Score: 38.85 E-value: 1.00e-02
Database: CDSEARCH/cdd Low complexity filter: no Composition Based Adjustment: yes E-value threshold: 0.01
References:
Wang J et al. (2023), "The conserved domain database in 2023", Nucleic Acids Res.51(D)384-8.
Lu S et al. (2020), "The conserved domain database in 2020", Nucleic Acids Res.48(D)265-8.
Marchler-Bauer A et al. (2017), "CDD/SPARCLE: functional classification of proteins via subfamily domain architectures.", Nucleic Acids Res.45(D)200-3.
of the residues that compose this conserved feature have been mapped to the query sequence.
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Functional characterization of the conserved domain architecture found on the query.
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This image shows a graphical summary of conserved domains identified on the query sequence.
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if a domain or superfamily has been annotated with functional sites (conserved features),
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click on the bars or triangles to view your query sequence embedded in a multiple sequence alignment of the proteins used to develop the corresponding domain model.
The table lists conserved domains identified on the query sequence. Click on the plus sign (+) on the left to display full descriptions, alignments, and scores.
Click on the domain model's accession number to view the multiple sequence alignment of the proteins used to develop the corresponding domain model.
To view your query sequence embedded in that multiple sequence alignment, click on the colored bars in the Graphical Summary portion of the search results page,
or click on the triangles, if present, that represent functional sites (conserved features)
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Concise Display shows only the best scoring domain model, in each hit category listed below except non-specific hits, for each region on the query sequence.
(labeled illustration) Standard Display shows only the best scoring domain model from each source, in each hit category listed below for each region on the query sequence.
(labeled illustration) Full Display shows all domain models, in each hit category below, that meet or exceed the RPS-BLAST threshold for statistical significance.
(labeled illustration) Four types of hits can be shown, as available,
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and represent a very high confidence that the query sequence belongs to the same protein family as the sequences use to create the domain model
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Retrieve proteins that contain one or more of the domains present in the query sequence, using the Conserved Domain Architecture Retrieval Tool
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