Immunogen sequence: QPSPFESKMS YESHHPESGG REGGYGCPHA SSPELDANCN SYRPHCEPCP AVADLTACFQ SQARLVVATQ NYYKLVTCDL SSQSSPSPAG SSITSCSEEH TKISP Highest antigen sequence identity to the following orthologs: Mouse - 90%, Rat - 93%. This gene encodes a RUN and SH3