Immunogen sequence: EVSWREFMKQ HYLSPSREFR EYKCDVLMRE NEALKDKSSH MFIYISWYKI EHICTSDNWM DRFRNAYVWV QNPLKVLKCH QENSKNSYTE SRSFNYIEFH CSMDGYVDSI EDLKMVEPIG N Highest antigen sequence identity to the following orthologs: Mouse - 56%, Rat - 58%. Testicular spe