[Term] id: PR:000049519 name: cellular tumor antigen p53 phosphorylated 16 (human) def: "A cellular tumor antigen p53 (human) that has been post-translationally modified to include phosphoserine at positions 15, 20 and 46 of the amino acid sequence represented by UniProtKB:P04637. UniProtKB:P04637, Ser-15/Ser-20/Ser-46, MOD:00046." [PRO:DNx, Reactome:R-HSA-6798369] comment: Category=organism-modification. synonym: "hTP53/Phos:16" EXACT PRO-short-label [PRO:DNx] synonym: "UniProtKB:P04637, Ser-15/Ser-20/Ser-46, MOD:00046" EXACT PRO-proteoform-std [PRO:DNx] xref: Reactome:R-HSA-6798369 "PR:000049519 located_in GO:0005654" is_a: PR:P04637 ! cellular tumor antigen p53 (human) relationship: has_part MOD:00046 ! O-phospho-L-serine relationship: only_in_taxon NCBITaxon:9606 ! Homo sapiens