Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
AHist_deacetyle6z6fA2 A: a/b three-layered sandwichesX: HAD domain-likeH: HAD domain-relatedT: Arginase/deacetylaseF: Hist_deacetylECOD (1.6)
AArb2e6z6fA1 A: a/b three-layered sandwichesX: alpha/beta-Hydrolases (From Topology)H: alpha/beta-Hydrolases (From Topology)T: alpha/beta-HydrolasesF: Arb2ECOD (1.6)
BHist_deacetyle6z6fB1 A: a/b three-layered sandwichesX: HAD domain-likeH: HAD domain-relatedT: Arginase/deacetylaseF: Hist_deacetylECOD (1.6)
BArb2e6z6fB2 A: a/b three-layered sandwichesX: alpha/beta-Hydrolases (From Topology)H: alpha/beta-Hydrolases (From Topology)T: alpha/beta-HydrolasesF: Arb2ECOD (1.6)

Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
PF00850Histone deacetylase domain (Hist_deacetyl)Histone deacetylase domainHistones can be reversibly acetylated on several lysine residues. Regulation of transcription is caused in part by this mechanism. Histone deacetylases catalyse the removal of the acetyl group. Histone deacetylases are related to other proteins [1]. ...Histones can be reversibly acetylated on several lysine residues. Regulation of transcription is caused in part by this mechanism. Histone deacetylases catalyse the removal of the acetyl group. Histone deacetylases are related to other proteins [1].
Domain
PF09757Arb2-like domain (Arb2-like)Arb2-like domainThis domain is found at the C-terminal of Clr3 (Cryptic loci regulator 3) (also known as histone deacetylase clr3) (EC:3.5.1.98) from S. pombe, its orthologue from S. cerevisiae HDA1, and similar sequences. This domain has been defined by sequence ho ...This domain is found at the C-terminal of Clr3 (Cryptic loci regulator 3) (also known as histone deacetylase clr3) (EC:3.5.1.98) from S. pombe, its orthologue from S. cerevisiae HDA1, and similar sequences. This domain has been defined by sequence homology to the Arb2 protein from S. pombe (not included in this entry). Structure analysis reveals that the Arb2 domain has clear homology to alpha/beta-hydrolases but that it is lacking the catalytic triad of these enzymes. Functional studies show that the this domain is necessary for centromeric heterochromatin silencing suggesting a model where the Arb2-like domain, through residues N562 and Y563, acts as an anchor that connects the HDAC activity of Clr3 to the SHREC complex. SHREC (Snf2/Hdac Repressive) complex in fission yeast drives transcriptional gene silencing in heterochromatin [1]. Studies in HDA1 described that two Arb2-like domains form a compact homo-dimer via the arm elements, and assemble as an inverse 'V' shape and that the domain possesses histone binding ability [2,3].
Domain
PF00850Histone deacetylase domain (Hist_deacetyl)Histone deacetylase domainHistones can be reversibly acetylated on several lysine residues. Regulation of transcription is caused in part by this mechanism. Histone deacetylases catalyse the removal of the acetyl group. Histone deacetylases are related to other proteins [1]. ...Histones can be reversibly acetylated on several lysine residues. Regulation of transcription is caused in part by this mechanism. Histone deacetylases catalyse the removal of the acetyl group. Histone deacetylases are related to other proteins [1].
Domain
PF09757Arb2-like domain (Arb2-like)Arb2-like domainThis domain is found at the C-terminal of Clr3 (Cryptic loci regulator 3) (also known as histone deacetylase clr3) (EC:3.5.1.98) from S. pombe, its orthologue from S. cerevisiae HDA1, and similar sequences. This domain has been defined by sequence ho ...This domain is found at the C-terminal of Clr3 (Cryptic loci regulator 3) (also known as histone deacetylase clr3) (EC:3.5.1.98) from S. pombe, its orthologue from S. cerevisiae HDA1, and similar sequences. This domain has been defined by sequence homology to the Arb2 protein from S. pombe (not included in this entry). Structure analysis reveals that the Arb2 domain has clear homology to alpha/beta-hydrolases but that it is lacking the catalytic triad of these enzymes. Functional studies show that the this domain is necessary for centromeric heterochromatin silencing suggesting a model where the Arb2-like domain, through residues N562 and Y563, acts as an anchor that connects the HDAC activity of Clr3 to the SHREC complex. SHREC (Snf2/Hdac Repressive) complex in fission yeast drives transcriptional gene silencing in heterochromatin [1]. Studies in HDA1 described that two Arb2-like domains form a compact homo-dimer via the arm elements, and assemble as an inverse 'V' shape and that the domain possesses histone binding ability [2,3].
Domain
C [auth D]PF11496Class II histone deacetylase complex subunits 2 and 3 (HDA2-3)Class II histone deacetylase complex subunits 2 and 3This 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 ...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 [1].
Domain
D [auth C]PF11496Class II histone deacetylase complex subunits 2 and 3 (HDA2-3)Class II histone deacetylase complex subunits 2 and 3This 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 ...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 [1].
Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
Histone deacetylase HDA1
Histone deacetylase HDA1
C [auth D]HDA1 complex subunit 3,HDA1 complex subunit 3
D [auth C]HDA1 complex subunit 2