PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 22389628-4 2012 In response to retinoic acid, CBP/p300 acetylates p53 at lysine 373, which leads to dissociation from E3-ubiquitin ligases HDM2 and TRIM24. Tretinoin 15-28 tumor protein p53 Homo sapiens 50-53 22389628-7 2012 Induction of p53 levels is a key step: RNA-interference-mediated knockdown of p53 delays differentiation, whereas depletion of negative regulators of p53 or ectopic expression of p53 yields spontaneous differentiation of hESCs, independently of retinoic acid. Tretinoin 245-258 tumor protein p53 Homo sapiens 13-16