[Term] id: PR:000018724 name: tyrosine-protein kinase BTK, initiator methionine removed form def: "A tyrosine-protein kinase BTK that has had the initiator methionine removed." [PRO:DNx] comment: Category=modification. synonym: "BTK/InitMet-" EXACT PRO-short-label [PRO:DNx] intersection_of: PR:000002110 ! tyrosine-protein kinase BTK intersection_of: lacks_part PR:000021937 ! initiator methionine