Immunogen sequence: RKQSNYEDLE AQPRGEEAQL SGDQLPFVME ELPGEGGNGR SEGGEAAGGP AQESRQEVRG SPRGVPLVAG SSEEGSRRSL KDAYLEVWRL VRGTRYM Highest antigen sequence identity to the following orthologs: Mouse - 63%, Rat - 71%. May play a role in hemostasis as a regula