Function
TRIM24 is a transcriptional coactivator that interacts with numerous nuclear receptors and coactivators, modulating the transcription of target genes. Its chromatin interaction is influenced by histone H3 modifications, exhibiting highest affinity for histone H3 that is unmodified at Lysine 4 (H3K4me0) and acetylated at Lysine 23 (H3K23ac). TRIM24 possesses E3 protein-ubiquitin ligase activity, promoting the ubiquitination and subsequent proteasomal degradation of p53/TP53. It plays a crucial role in regulating cell proliferation and apoptosis, at least partially through its effects on p53/TP53 levels. Furthermore, TRIM24 upregulates ligand-dependent transcriptional activation by androgen receptor (AR), glucocorticoid receptor (GR/NR3C1), thyroid hormone receptor (TR), and estrogen receptor alpha (ESR1). Its activity extends to modulating transcriptional activation by retinoic acid (RA) receptors, including RARA, and regulating retinoic acid-dependent hepatocyte proliferation.