Immunogen sequence: NPAGLRGAVE EPAAPWVGDS PIGQSELLGD DDAYLGNQRS KESLGEAGIQ KGSAMAATTT TAIFTTLNEP KPETQRRGWA KSRQRRQVWK RRAEDGQGDS GISSHFQPWP KH Highest antigen sequence identity to the following orthologs: Mouse - 56%, Rat - 54%. PLAC3 (placenta-specific