[Term] id: PR:000027763 name: cellular tumor antigen p53 isoform 1 phosphorylated 3 def: "A cellular tumor antigen p53 isoform 1 that has been phosphorylated at the Thr residue in the motif PTPAAPAPAPSWPLSS. This modification stabilizes p53 in response to stress. Example: UniProtKB:P04637-1, Thr-81, MOD:00047." [PRO:PD, PMID:11283254] comment: Category=modification. synonym: "TP53/iso:1/Phos:3" 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