[Term] id: PR:000000557 name: mitogen-activated protein kinase 3 isoform 1 phosphorylated 1 def: "A mitogen-activated protein kinase 3 isoform 1 phosphorylated form that is phosphorylated at both Thr and Tyr of the TxY motif within the protein kinase domain. Example: UniProtKB:P27361-1, Thr-202, MOD:00047|Tyr-204, MOD:00048." [PRO:CNA, PMID:17192257] comment: Category=modification. synonym: "MAPK3/iso:1/Phos:1" EXACT PRO-short-label [PRO:DNx] synonym: "activated ERK1" RELATED [] synonym: "ERK1 active" RELATED [] synonym: "MAPK3 active form" RELATED [] synonym: "phospho-ERK-1" RELATED [] is_a: PR:000000455 ! mitogen-activated protein kinase 3 isoform 1 phosphorylated form relationship: has_part MOD:00047 ! O-phospho-L-threonine relationship: has_part MOD:00048 ! O4'-phospho-L-tyrosine