FEATURES

FAMILY

DESCRIPTION

Also known as KAT2A_HUMAN, KAT2A, GCN5, GCN5L2. Protein lysine acyltransferase that can act as a acetyltransferase, glutaryltransferase or succinyltransferase, depending on the context (PubMed:29211711). Acts as a histone lysine succinyltransferase: catalyzes succinylation of histone H3 on 'Lys-79' (H3K79succ), with a maximum frequency around the transcription start sites of genes (PubMed:29211711). Succinylation of histones gives a specific tag for epigenetic transcription activation (PubMed:29211711). Association with the 2-oxoglutarate dehydrogenase complex, which provides succinyl-CoA, is required for histone succinylation (PubMed:29211711). In different complexes, functions either as an acetyltransferase (HAT) or as a succinyltransferase: in the SAGA and ATAC complexes, acts as a histone acetyltransferase (PubMed:17301242, PubMed:19103755, PubMed:29211711). Has significant histone acetyltransferase activity with core histones, but not with nucleosome core particles (PubMed:17301242, PubMed:19103755). Acetylation of histones gives a specific tag for epigenetic transcription activation (PubMed:17301242, PubMed:19103755, PubMed:29211711). Recruited by the XPC complex at promoters, where it specifically mediates acetylation of histone variant H2A.Z.1/H2A.Z, thereby promoting expression of target genes (PubMed:29973595, PubMed:31527837). Involved in long-term memory consolidation and synaptic plasticity: acts by promoting expression of a hippocampal gene expression network linked to neuroactive receptor signaling (By similarity). Acts as a positive regulator of T-cell activation: upon TCR stimulation, recruited to the IL2 promoter following interaction with NFATC2 and catalyzes acetylation of histone H3 at 'Lys-9' (H3K9ac), leading to promote IL2 expression (By similarity). Required for growth and differentiation of craniofacial cartilage and bone by regulating acetylation of histone H3 at 'Lys-9' (H3K9ac) (By similarity). Regulates embryonic stem cell (ESC) pluripotency and differentiation (By similarity). Also acetylates non-histone proteins, such as CEBPB, PLK4 and TBX5 (PubMed:17301242, PubMed:27796307, PubMed:29174768). Involved in heart and limb development by mediating acetylation of TBX5, acetylation regulating nucleocytoplasmic shuttling of TBX5 (PubMed:29174768). Acts as a negative regulator of centrosome amplification by mediating acetylation of PLK4 (PubMed:27796307). Also acts as a histone glutaryltransferase: catalyzes glutarylation of histone H4 on 'Lys-91' (H4K91glu), a mark that destabilizes nucleosomes by promoting dissociation of the H2A-H2B dimers from nucleosomes (PubMed:31542297)., (Microbial infection) In case of HIV-1 infection, it is recruited by the viral protein Tat. Regulates Tat's transactivating activity and may help inducing chromatin remodeling of proviral genes. Homooligomer; may form a tetramer of homodimers (PubMed:30109122). Interacts with EP300, CREBBP and ADA2. Component of the TFTC-HAT complex, at least composed of TAF5L, TAF6L, TAF3, TADA3L, SUPT3H/SPT3, TAF2/TAFII150, TAF4/TAFII135, TAF5/TAFII100, KAT2A/GCN5L2, TAF10 and TRRAP (PubMed:10373431, PubMed:10611234, PubMed:11438666). Component of the STAGA transcription coactivator-HAT complex, at least composed of SUPT3H, KAT2A, SUPT7L, TAF5L, TAF6L, TADA3L, TAD1L, TAF10, TAF12, TRRAP and TAF9 (PubMed:18206972). The STAGA core complex is associated with a subcomplex required for histone deubiquitination composed of ATXN7L3, ENY2 and USP22 (PubMed:18206972). Component of the ADA2A-containing complex (ATAC), composed of KAT14, KAT2A, TADA2L, TADA3L, ZZ3, MBIP, WDR5, YEATS2, CCDC101 and DR1 (PubMed:19103755). In the complex, it probably interacts directly with KAT14, MBIP and WDR5 (PubMed:19103755). Interacts with PML (By similarity). Interacts with CEBPB (PubMed:17301242). Interacts with TACC1, TACC2 and TACC3 (PubMed:14767476). Interacts with RELA (By similarity). Interacts with NFATC2 (By similarity). Interacts with TBX5 (PubMed:29174768). Interacts with PLK4 (PubMed:27796307). Associates with the 2-oxoglutarate dehydrogenase complex (PubMed:29211711). Interacts with XPC; leading to KAT2A recruitment to promoters and subsequent acetylation of histones (PubMed:29973595, PubMed:31527837). Interacts with ERCC3/XPB; leading to KAT2A recruitment to promoters and subsequent acetylation of histones (PubMed:30894545).

Also known as KAT2A_HUMAN, KAT2A, GCN5, GCN5L2. Protein lysine acyltransferase that can act as a acetyltransferase, glutaryltransferase or succinyltransferase, depending on the context (PubMed:29 ...

EXTERNAL LINKS

KAT2A

Histone acetyltransferase KAT2A

KAT2A

Molecular Synopsis