Processed zona pellucida sperm-binding protein 4 antibody, ZBP antibody, Zona pellucida B protein antibody, Zona pellucida glycoprotein 4 antibody, Zona pellucida protein B antibody, Zona pellucida sperm binding protein 4 antibody, Zp-4 antibody, ZP1 antibody, ZP4 antibody, ZP4_HUMAN antibody, ZPB antibody