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A serine proteinase in sperm (spermatozoa) similar in specificity to trypsin.
AcrosinA sperm serine protease encoded by ACR, which is formed from proacrosin by cleavage at lysine and arginine, and inhibited by antitrypsins. Acrosin lyses the ovum’s zona pellucida, facilitating sperm penetration through the innermost glycoprotein layers of the ovum.
A serine proteinase in sperms similar in specificity to trypsin.
one of the enzymes in the acrosome on the head of a mammalian spermatozoon. Involved in the penetration of the zona pellucida of the ovum by the spermatozoon.