Immunogen sequence: FPDPNVKYVF RTENGGQVMY RVIQVSEGQL DGQTEGTGAI SGYPATQSMT QAVIQGAFTS DDAVDTEGTA AETHYTYFPS TAVGDGAGGT TSGSTAAVVT TQGSEALLGQ ATPPGTGQFF VMMSPQEV Antigen sequence identity: Mouse 96%; Rat 96%. This gene encodes a member of the basic helix-