Immunogen sequence: TSPSLKKFACK APGASPGNPL SPSLSDKDRG LKGAGGSPVG VEEGLVNVGT GQKLPTSGAD PLCRNPTNRS LKGKLMNSKK LSSTDCFKTE AFTSPEALQP GGTALAPKKR SRKGRAGAHG LSKGPLEKRP YLGPAL Highest antigen sequence identity to the following orthologs - mouse 65%, rat 66%.