[Term] id: PR:000021158 name: proteasome inhibitor PI31 subunit, initiator methionine removed form def: "A proteasome inhibitor PI31 subunit that has had the initiator methionine removed." [PRO:DNx] comment: Category=modification. synonym: "PSMF1/InitMet-" EXACT PRO-short-label [PRO:DNx] intersection_of: PR:000013396 ! proteasome inhibitor PI31 subunit intersection_of: lacks_part PR:000021937 ! initiator methionine