[Term] id: PR:000035446 name: cellular tumor antigen p53 isoform 1 phosphorylated 1 (human) def: "A cellular tumor antigen p53 isoform 1 phosphorylated 1 in human. UniProtKB:P04637-1, Ser-15, MOD:00046." [PRO:KER, PMID:22099307] comment: Category=organism-modification. Note: Phosphorylated form found upon DNA damage. Kinase=("ATM"; PR:Q13315; Ser-15). synonym: "hTP53/iso:1/Phos:1" EXACT PRO-short-label [PRO:DNx] synonym: "p53S15 (human)" EXACT [] synonym: "UniProtKB:P04637-1, Ser-15, MOD:00046" EXACT PRO-proteoform-std [PRO:DNx] intersection_of: PR:000003039 ! cellular tumor antigen p53 isoform 1 phosphorylated 1 intersection_of: only_in_taxon NCBITaxon:9606 ! Homo sapiens relationship: has_part MOD:00046 ! O-phospho-L-serine