Immunogen sequence: SIPVILTNQIT THLSGALASQ ADLVSPADDL SLSEGTSGSS CVIAALGNTW SHSVNTRLIL QYLDSERRQI Highest antigen sequence identity to the following orthologs - mouse 25%, rat 32%. Five human RAD 51 homologues have been identified: XRCC2, XRCC3, RAD51B,