[Term] id: PR:000025465 name: mitogen-activated protein kinase 1 isoform 1, initiator methionine removed form def: "A mitogen-activated protein kinase 1 isoform 1 that has had the initiator methionine removed." [PRO:DNx] comment: Category=modification. synonym: "MAPK1/iso:1/InitMet-" EXACT PRO-short-label [PRO:DNx] intersection_of: PR:000000289 ! mitogen-activated protein kinase 1 isoform 1 intersection_of: lacks_part PR:000021937 ! initiator methionine