Cf. Huang et al., THE ZETA-PROTEIN-KINASE-C ISOFORM FROM THE TESTIS OF THE GREY-MULLET MUGIL-CEPHALUS WITH A SPECIFIC REACTION PROTEIN OF M(R)-48,000 ON OOLEMMA, Comparative biochemistry and physiology. Part C, Pharmacology toxicology & endocrinology, 111(3), 1995, pp. 429-433
The zeta protein kinase C isoform (PKC-zeta) was purified from the tes
tis of the grey mullet Mugil cephalus and has relative masses (M(r)) o
f 65,000 and 63,000. The subunits of PKC-zeta from spermatozoa degener
ated to M(r) 58,000 and 53,000 after continuous freezing and thawing.
Proteins of M(r) 48,000 on the oolemma of the grey mullet Mugil cephal
us were found to be the reaction proteins of the PKC-zeta from spermat
ozoa.