Immunogen sequence: MNEVKESLRS IEQKYKLFQQ QQLTFTAALE HCRENAHDKI RPISSIGQVQ SYMEHYCNSS TDRRVLLMFL DICSELNKLC QHFE Highest antigen sequence identity to the following orthologs: Mouse - 89%, Rat - 93%. SPACA9 (Sperm Acrosome Associated 9) is a Protein Codin