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

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

ChainsTypeFamily Name Domain Identifier Family IdentifierProvenance Source (Version)
ASCOP2 FamilyN-acetyltransferase, NAT 8023653 4001800 SCOP2 (2022-06-29)
ASCOP2 SuperfamilyAcyl-CoA N-acyltransferases (Nat) 8036033 3000403 SCOP2 (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
AKOG2696_2nd_1e1bobA1 A: alpha arraysX: HTHH: HTHT: HAT1, C-terminal domainF: KOG2696_2nd_1ECOD (1.6)
AKOG2696_1ste1bobA3 A: a+b three layersX: Nat/IvyH: Acyl-CoA N-acyltransferases (Nat) (From Topology)T: Acyl-CoA N-acyltransferases (Nat)F: KOG2696_1stECOD (1.6)
AHat1_Ne1bobA2 A: few secondary structure elementsX: beta-beta-alpha zinc fingersH: beta-beta-alpha zinc fingers (From Topology)T: beta-beta-alpha zinc fingersF: Hat1_NECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

ChainDomainClassArchitectureTopologyHomologyProvenance Source (Version)
A3.90.360.10 Alpha Beta Alpha-Beta Complex Histone Acetyltransferase domain 1CATH (4.3.0)
A3.40.630.30 Alpha Beta 3-Layer(aba) Sandwich Aminopeptidase Gcn5-related N-acetyltransferase (GNAT)CATH (4.3.0)
A1.10.10.390 Mainly Alpha Orthogonal Bundle Arc Repressor Mutant, subunit A CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
PF21184Fungal HAT1, C-terminal (HAT1_C_fung)Fungal HAT1, C-terminalHistone acetyltransferase type B catalytic subunit (HAT1) is the catalytic subunit of the histone acetylase B (HAT-B) complex (composed on HAT1 and HAT2 at least) [1-2]. It DNA double-strand break repair. Yeast HAT1 specifically acetylates H4 at Lys5 ...Histone acetyltransferase type B catalytic subunit (HAT1) is the catalytic subunit of the histone acetylase B (HAT-B) complex (composed on HAT1 and HAT2 at least) [1-2]. It DNA double-strand break repair. Yeast HAT1 specifically acetylates H4 at Lys5 and Lys12 residues. The C-terminal domain of HAT1 (this entry) is highly variable and not required for HAT activity [1]. It consists of a bundle of helices and a short beta-strand. This entry includes HAT1 from Fungi.
Domain
PF10394Histone acetyl transferase HAT1 N-terminus (Hat1_N)Histone acetyl transferase HAT1 N-terminusThis domain is the N-terminal half of the structure of histone acetyl transferase HAT1. It is often found in association with the C-terminal part of the GNAT Acetyltransf_1 (Pfam:PF00583) domain. It seems to be motifs C and D of the structure. Histon ...This domain is the N-terminal half of the structure of histone acetyl transferase HAT1. It is often found in association with the C-terminal part of the GNAT Acetyltransf_1 (Pfam:PF00583) domain. It seems to be motifs C and D of the structure. Histone acetyltransferases (HATs) catalyse the transfer of an acetyl group from acetyl-CoA to the lysine E-amino groups on the N-terminal tails of histones. HATs are involved in transcription since histones tend to be hyper-acetylated in actively transcribed regions of chromatin, whereas in transcriptionally silent regions histones are hypo-acetylated [1].
Domain
PF00583Acetyltransferase (GNAT) family (Acetyltransf_1)Acetyltransferase (GNAT) family- Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
HISTONE ACETYLTRANSFERASE

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

ChainsEnzyme NameDescriptionCatalytic Residues
histone acetyltransferase (HAT1 family)  M-CSA #224

Hat1, isolated from Saccharomyces cerevisiae, is a type B histone acetyltransferase. It catalyses the sequential acetylation of Lys12 and then Lys5 of newly synthesised histone H4 using acetyl-CoA as the source of the acetyl group. Hat1 associates with the accessory protein Hat2 before binding and acetylating H4. The complex is thought to also bind histone H3. The complex is then imported into the nucleus where the histones are deposited onto DNA with the aid of Hif1. Hat1 is unable to acetylate DNA-associated histones.

Defined by 2 residues: PHE:A-220GLU:A-255
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