[Term] id: PR:000021191 name: glycogen phosphorylase, muscle form, initiator methionine removed form def: "A glycogen phosphorylase, muscle form that has had the initiator methionine removed." [PRO:DNx] comment: Category=modification. synonym: "PYGM/InitMet-" EXACT PRO-short-label [PRO:DNx] intersection_of: PR:000013522 ! glycogen phosphorylase, muscle form intersection_of: lacks_part PR:000021937 ! initiator methionine