[Term] id: PR:000026196 name: dual specificity mitogen-activated protein kinase kinase 1 isoform 1 phosphorylated 1 def: "A dual specificity mitogen-activated protein kinase kinase 1 isoform 1 that has been phosphorylated in the two conserved Ser residues involved in kinase activation. Example: UniProtKB:Q02750-1, Ser-218/Ser-222, MOD:00046." [PRO:CNA, PMID:8131746] comment: Category=modification. synonym: "MAP2K1/iso:1/Phos:1" EXACT PRO-short-label [PRO:DNx] synonym: "MEK1 active" RELATED [] synonym: "phospho-MEK1" RELATED [] is_a: PR:000026194 ! dual specificity mitogen-activated protein kinase kinase 1 isoform 1 relationship: has_part MOD:00046 ! O-phospho-L-serine