Target intelligence / Profile preview

Histone Acetyltransferase p300 (p300)

Target
p300
Molecular classification
Enzyme, Histone modification, Transcription factor, Acetyltransferase
01

Overview

p300 is a transcriptional coactivator with histone acetyltransferase (HAT) activity. It regulates gene expression by acetylating lysine residues on histones and non-histone proteins, leading to chromatin remodeling and increased accessibility of DNA for transcription. It plays a crucial role in cell growth, differentiation, and tumor suppression. Mutations or dysregulation of EP300 are linked to developmental disorders and cancer. Small-molecule inhibitors targeting its HAT domain are being explored for therapeutic use.

Other names
EP300E1A-associated protein p300KAT3B
02

Mechanism of action

Acetylation of histone and non-histone proteins

03

Biological functions

Transcription activationChromatin remodelingCell growth and divisionCellular differentiationGene regulation
04

Disease associations

CancerDevelopmental disorders
05

Safety considerations

Aberrant expression can contribute to tumorigenesis.Inhibition may affect multiple cellular processes.
06

Interacting drugs

TTK21

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