Immunogen sequence: GDSSEDGHYF RGHLGTLVFW STALPQSHFQ HSSQHSSGEE EATDLVLTAS FEPVNTEWVP FRDEKYPRLE VLQGFE Highest antigen sequence identity to the following orthologs: Mouse - 67%, Rat - 64%. PLAC3 (placenta-specific protein 3), also known as PAPP-A2, is a