Regulatory Network in Protein Phosphorylation
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Substrate: EP300

Description: Histone acetyltransferase p300 (EC (E1A-associated proteinp300).

Synonyms: P300

Ensembl ID: ENSG00000100393

UniprotKB/SwissProt: EP300_HUMAN (Q09472)

Function: Functions as histone acetyltransferase and regulates transcription via chromatin remodeling. Acetylates all four core histones in nucleosomes. Histone acetylation gives an epigenetic tag for transcriptional activation. Binds to and may be involved in the transforming capacity of the adenovirus E1A protein. Mediates cAMP-gene regulation by binding specifically to phosphorylated CREB protein. 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.

Other Modifications: View all modification sites in dbPTM

Protein Subcellular Localization: Nucleus.
Protein Domain and Phosphorylation Sites:

The phosphorylated sites of EP300

No.SubstrateUniProtKB IDPositionPhosphoPeptideSolvent AccessibilityCatalytic kinaseSourceComputational Annotation of Catalytic KinaseInteracting PartnersExpression Analysis
1EP300EP300_HUMANS24SSPAL S ASASD 23.45%CaMK4 Phospho.ELM 7.0  ViewAnalyzing
2EP300EP300_HUMANS89LLRSG S SPNLN 43.82%PKCa(PKC alpha) Phospho.ELM 7.0 ViewAnalyzing
3EP300EP300_HUMANS89LLRSG S SPNLN 43.82%CaMK1_group Phospho.ELM 7.0 ViewAnalyzing
4EP300EP300_HUMANS89LLRSG S SPNLN 43.82%PKCd HPRD:04078(in vitro;in vivo)  ViewAnalyzing
5EP300EP300_HUMANS89LLRSG S SPNLN 43.82%PKCd(PKC delta) Phospho.ELM 7.0 ViewAnalyzing
6EP300EP300_HUMANS89LLRSG S SPNLN 43.82%AMPK_group Phospho.ELM 7.0 ViewAnalyzing
7EP300EP300_HUMANS1834RRRMA S MQRTG 13.20%AKT_group Phospho.ELM 7.0 ViewAnalyzing
8EP300EP300_HUMANS1834RRRMA S MQRTG 13.20%AKT1 HPRD:04078(in vitro)  ViewAnalyzing