[Term] id: PR:000003219 name: mitogen-activated protein kinase kinase kinase 1 isoform 1 phosphorylated 1 def: "A mitogen-activated protein kinase kinase kinase 1 isoform 1 phosphorylated form that is the active form." [PRO:CNA] comment: Category=modification. synonym: "MAP3K1/iso:1/Phos:1" EXACT PRO-short-label [PRO:DNx] synonym: "MEKK1 active" EXACT [] is_a: PR:000003218 ! mitogen-activated protein kinase kinase kinase 1 isoform 1 phosphorylated form