Immunogen sequence: PLGPVVPVLVF PPDLVFRADQ RSGPRQLLTL YNPTGTALRF RVLCTAPAKY TVFDAEGYVK PQ Highest antigen sequence identity to the following orthologs - mouse 97%, rat 97%. MOSPD3 is a multi-pass membrane protein with a major sperm protein (MSP) domain.