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Tchem
EP300
Histone acetyltransferase p300

Protein Summary
Description
Functions as histone acetyltransferase and regulates transcription via chromatin remodeling (PubMed:23415232, PubMed:23934153, PubMed:8945521). Acetylates all four core histones in nucleosomes. Histone acetylation gives an epigenetic tag for transcriptional activation (PubMed:23415232, PubMed:23934153, PubMed:8945521). Mediates cAMP-gene regulation by binding specifically to phosphorylated CREB protein. Mediates acetylation of histone H3 at 'Lys-122' (H3K122ac), a modification that localizes at the surface of the histone octamer and stimulates transcription, possibly by promoting nucleosome instability. Mediates acetylation of histone H3 at 'Lys-27' (H3K27ac) (PubMed:23911289). Also functions as acetyltransferase for non-histone targets, such as ALX1, HDAC1, PRMT1 or SIRT2 (PubMed:12929931, PubMed:16762839, PubMed:18722353). Acetylates 'Lys-131' of ALX1 and acts as its coactivator (PubMed:12929931). Acetylates SIRT2 and is proposed to indirectly increase the transcriptional activity of ...more
Uniprot Accession IDs
Gene Name
Ensembl ID
  • ENST00000263253
  • ENSP00000263253
  • ENSG00000100393

Symbol
  • P300
  • p300
  • KAT3B
  • MKHK2
  • RSTS2
Illumination Graph
Knowledge Table
Most Knowledge About
Knowledge Value (0 to 1 scale)
biological process
1
hub protein
1
molecular function
1
viral protein
1
virus
1


IDG Development Level Summary
Tdark

These are targets about which virtually nothing is known. They do not have known drug or small molecule activities
- AND - satisfy two or more of the following criteria:

Pubmed score: 1739.55   (req: < 5)
Gene RIFs: 424   (req: <= 3)
Antibodies: 969   (req: <= 50)
Tbio

These targets do not have known drug or small molecule activities
- AND - satisfy two or more of the following criteria:

Pubmed score: 1739.55   (req: >= 5)
Gene RIFs: 424   (req: > 3)
Antibodies: 969   (req: > 50)

- OR - satisfy the following criterion:

Gene Ontology Terms: 87
Tchem

Target has at least one ChEMBL compound with an activity cutoff of < 30 nM - AND - satisfies the preceding conditions

Active Ligands: 103
Tclin

Target has at least one approved drug - AND - satisfies the preceding conditions

Active Drug: 0