acrosin

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ac·ro·sin

(ak'rō-sin), [MIM*102480]
A serine proteinase in sperm (spermatozoa) similar in specificity to trypsin.
Farlex Partner Medical Dictionary © Farlex 2012

Acrosin

A 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.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.

ac·ro·sin

(ak'rō-sin)
A serine proteinase in sperms similar in specificity to trypsin.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012