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The zona pellucida 3 (ZP3) plays a crucial role in reproductive immunology. We obtained a full-length cDNA encoding Chinese zokor ZP3, using rapid amplification of cDNA ends-polymerase chain reaction (RACE-PCR). The cDNA contains an open reading frame of 1269 nucleotides encoding a polypeptide of 422 amino acid residues. The amino acid sequence has a high degree of homology with those of hamster (78%),...