Cation channel sperm associated auxiliary subunit gamma MCGPAMFPAG PPWPRVRVVQ VLWALLAVLL ASWRLWAIKD FQECTWQVVL NEFKRVGESG VSDSFFEQEP VDTVSSLFHM LVDSPIDPSE KYLGFPYYLK INYSCEEKTE SCAVAQTGVQ WRDLGSLQPP PPVFKRCSCL GLPSSWNYSP LRTWCAWAT