[Term] id: PR:000027768 name: cellular tumor antigen p53 isoform 1 phosphorylated 4 (human) def: "A cellular tumor antigen p53 isoform 1 phosphorylated 4 in human. UniProtKB:P04637-1, Thr-55, MOD:00047." [PRO:PD, PMID:15053879] comment: Category=organism-modification. Kinase=("TAF1"; PR:P21675; Thr-55). synonym: "hTP53/iso:1/Phos:4" EXACT PRO-short-label [PRO:DNx] synonym: "p53-pThr55" EXACT [] synonym: "UniProtKB:P04637-1, Thr-55, MOD:00047" EXACT PRO-proteoform-std [PRO:DNx] intersection_of: PR:000027767 ! cellular tumor antigen p53 isoform 1 phosphorylated 4 intersection_of: only_in_taxon NCBITaxon:9606 ! Homo sapiens relationship: has_part MOD:00047 ! O-phospho-L-threonine