function:May be implicated in gamete interaction during fertilization.,similarity:Belongs to the zona pellucida-binding protein Sp38 family.,
Cytoplasmic vesicle, secretory vesicle, acrosome membrane ; Peripheral membrane protein . Secreted . First localized in acrosome granule, later migrates to the inner and outer acrosomal membrane. Released after the acrosomal reaction. .
Expressed specifically in testis.
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