Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

ChainsTypeFamily Name Domain Identifier Family IdentifierProvenance Source (Version)
ASCOP2B SuperfamilyArginase/deacetylase-like 8087567 3000260 SCOP2B (2022-06-29)
BSCOP2B SuperfamilyArginase/deacetylase-like 8087567 3000260 SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
AHist_deacetyle5g0iA1 A: a/b three-layered sandwichesX: HAD domain-likeH: HAD domain-relatedT: Arginase/deacetylaseF: Hist_deacetylECOD (1.6)
BHist_deacetyle5g0iB1 A: a/b three-layered sandwichesX: HAD domain-likeH: HAD domain-relatedT: Arginase/deacetylaseF: Hist_deacetylECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

ChainDomainClassArchitectureTopologyHomologyProvenance Source (Version)
A3.40.800.20 Alpha Beta 3-Layer(aba) Sandwich Arginase Chain ACATH (4.3.0)
B3.40.800.20 Alpha Beta 3-Layer(aba) Sandwich Arginase Chain ACATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
A, B
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

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
A, B
HDAC6

Structure Motif Annotation: Mechanism and Catalytic Site Atlas M-CSA Database Homepage

ChainsEnzyme NameDescriptionCatalytic Residues
histone deacetylase 6 enzyme (HDAC6)  M-CSA #998

Histone deacetylase 6 enzyme (HDAC6) is a metalloenzyme, part of the HDAC family. The HDAC family includes 18 isoforms which are grouped into four classes (I, II, III, and IV). HDACs in class III use an NAD+ cofactor, whilst the others are metalloenzymes which use a Zn(II) metal ion centre. HDAC6 is in class II and is involved in the maintenance of a cell's shape and its polarity during cell division and migration, intracellular transport and angiogenesis.

HDACs catalyse the removal of the acyl group from a lysine amino acid of the substrate of nuclear and cytosol proteins. In general, protein acylation and deacylation processes are a key part of cell cycle regulation.

HDAC6 has a heterodimeric structure with two different catalytic domains, CD1 and CD2. The domains present a similar structure but show differing substrate specificities and their roles remain unclear. HDAC6 is of interest for its role in the fight against cancer and various other pathologies.

Defined by 7 residues: HIS:A-170 [auth A-192]HIS:A-171 [auth A-193]ASP:A-206 [auth A-228]ASP:A-208 [auth A-230]HIS:A-210 [auth A-232]ASP:A-301 [auth A-323]TYR:A-341 [auth A-363]
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