MeSH note : member of the Kex2-subtilisin-like proprotein convertase family; there are at least
three PC4 mRNAs, A, B, & C (654, 619 & 609 amino acids respectively); abundant in
testis; do not confuse with an immediate early protein PC4; RefSeq NM_008793;
CISMeF synonym : proprotein convertase subtilisin/kexin type 4 protein, mouse;