SPAM1
(redirected from Sperm surface protein PH-20)SPAM1
A gene on chromosome 7q31.3 that encodes sperm-adhesion molecule 1 involved in sperm-egg adhesion, which helps sperm penetrate the layer of cumulus cells of an ovum by digesting the hyaluronic acid matrix formed before ovulation.Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.