Cloning and characterization of the human sperm receptor ligand ZP3: evidence for a second polymorphic allele with a different frequency in the Caucasian and Japanese populations.
van Duin M., Polman J.E., Verkoelen C.C., Bunschoten H., Meyerink J.H., Olijve W., Aitken R.J.Genomics 14:1064-1070(1992) The mammalian zona pellucida, which mediates species-specific sperm binding, induction of the acrosome reaction and prevents post-fertilization polyspermy, is composed of three to four glycoproteins, ZP1, ZP2, ZP3, and ZP4. ZP3 is essential for sperm binding and zona matrix formation.
"Cloning and characterization of the human sperm receptor ligand ZP3: evidence for a second polymorphic allele with a different frequency in the Caucasian and Japanese populations."
van Duin M., Polman J.E., Verkoelen C.C., Bunschoten H., Meyerink J.H., Olijve W., Aitken R.J.
Genomics 14:1064-1070(1992)