[Term]
id: PR:000027767
name: cellular tumor antigen p53 isoform 1 phosphorylated 4
def: "A cellular tumor antigen p53 isoform 1 that has been phosphorylated on a Thr residue in the N-terminal activation domain 2 (AD2). This modification promotes MDM2-mediated p53 degradation and TAF1-mediated cell cycle progression. Example: UniProtKB:P04637-1, Thr-55, MOD:00047." [PRO:PD, PMID:15053879]
comment: Category=modification.
synonym: "TP53/iso:1/Phos:4" EXACT PRO-short-label [PRO:DNx]
is_a: PR:000003036 ! cellular tumor antigen p53 isoform 1
relationship: has_part MOD:00047 ! O-phospho-L-threonine