FEATURES

FAMILY

DESCRIPTION

Also known as KAT5_HUMAN, KAT5, HTATIP, TIP60. Catalytic subunit of the NuA4 histone acetyltransferase complex which is involved in transcriptional activation of select genes principally by acetylation of nucleosomal histones H4 and H2A (PubMed:12776177, PubMed:15042092, PubMed:15121871, PubMed:15310756, PubMed:14966270, PubMed:16387653, PubMed:19909775, PubMed:15196461, PubMed:32822602). This modification may both alter nucleosome-DNA interactions and promote interaction of the modified histones with other proteins which positively regulate transcription (PubMed:12776177, PubMed:15042092, PubMed:15121871, PubMed:15310756, PubMed:14966270, PubMed:15196461). This complex may be required for the activation of transcriptional programs associated with oncogene and proto-oncogene mediated growth induction, tumor suppressor mediated growth arrest and replicative senescence, apoptosis, and DNA repair (PubMed:15196461). NuA4 may also play a direct role in DNA repair when recruited to sites of DNA damage (PubMed:15196461). Component of a SWR1-like complex that specifically mediates the removal of histone H2A.Z/H2AZ1 from the nucleosome (PubMed:24463511). Also acetylates non-histone proteins, such as ATM, NR1D2, RAN, FOXP3, ULK1 and RUBCNL/Pacer (PubMed:16141325, PubMed:17360565, PubMed:17996965, PubMed:29040603, PubMed:30704899). Directly acetylates and activates ATM (PubMed:16141325). Relieves NR1D2-mediated inhibition of APOC3 expression by acetylating NR1D2 (PubMed:17996965). Promotes FOXP3 acetylation and positively regulates its transcriptional repressor activity (PubMed:17360565). Acetylates RAN at 'Lys-134' (PubMed:29040603). Together with GSK3 (GSK3A or GSK3B), acts as a regulator of autophagy: phosphorylated at Ser-86 by GSK3 under starvation conditions, leading to activate acetyltransferase activity and promote acetylation of key autophagy regulators, such as ULK1 and RUBCNL/Pacer (PubMed:30704899). Component of the NuA4 histone acetyltransferase complex which contains the catalytic subunit KAT5/TIP60 and the subunits EP400, TRRAP/PAF400, BRD8/SMAP, EPC1, DMAP1/DNMAP1, RUVBL1/TIP49, RUVBL2, ING3, actin, ACTL6A/BAF53A, MORF4L1/MRG15, MORF4L2/MRGX, MRGBP, YEATS4/GAS41, VPS72/YL1 and MEAF6 (PubMed:12963728, PubMed:10966108, PubMed:15196461, PubMed:14966270). HTATTIP/TIP60, EPC1, and ING3 together constitute a minimal HAT complex termed Piccolo NuA4. The NuA4 complex interacts with MYC. Interacts with ATM (PubMed:16141325). Interacts with JADE1 (PubMed:15502158). Interacts with PLA2G4A/CPLA2, EDNRA and HDAC7 (PubMed:11416127, PubMed:11262386, PubMed:12551922). Interacts with the cytoplasmic tail of APP and APBB1/FE65 (By similarity). Interacts with TRIM24 and TRIM68 (PubMed:18451177, PubMed:19909775). Forms a complex with SENP6 and UBE2I in response to UV irradiation. Identified in a complex with HINT1 (PubMed:16835243). Interacts with ATF2 and CUL3 (PubMed:18397884). Interacts with NR1D2 (via N-terminus) (PubMed:17996965). Component of a SWR1-like complex (PubMed:24463511). Interacts with FOXP3 (PubMed:17360565). Interacts with ZBTB49 (PubMed:25245946).

EXTERNAL LINKS

KAT5

Histone acetyltransferase KAT5

KAT5

Molecular Synopsis