highly purified mpf consists of a complex between a 34k ( k = 10 ( 3 ) mr ) serine/threonine protein kinase , identified as a xenopus homolog of the cdc2+ gene product , p34cdc2 , and a 45k substrate , identified as a xenopus b-type cyclin .
C0079805
mpf
C0079185
b-type cyclin