[Term] id: PR:000003076 name: signal transducer and activator of transcription 1 isoform 1 phosphorylated 1 def: "A signal transducer and activator of transcription 1 isoform 1 phosphorylated form in which the phosphorylation occurs at the Tyr residue within the conserved GYI sequence following the SH2 domain. Example: UniProtKB:P42224-1, Tyr-701, MOD:00048." [PRO:CNA, PMID:7543024] comment: Category=modification. Kinase=("JAK"; PR:000025748; Tyr-701). synonym: "STAT1/iso:1/Phos:1" EXACT PRO-short-label [PRO:DNx] synonym: "signal transducer and activator of transcription 1 isoform 1 phosphorylated 2" EXACT [] synonym: "stat1 alpha active" EXACT [] is_a: PR:000003075 ! signal transducer and activator of transcription 1 isoform 1 phosphorylated form relationship: has_part MOD:00048 ! O4'-phospho-L-tyrosine