Immunogen sequence: MSDNDDIEVE SDEEQPRFQS AADKRAHHNA LERKRRDHIK DSFHSLRDSV PSLQGEKASR AQILDKATEY IQYMRRKNHT HQQDIDDLKR QNALLEQQVR ALEKARSSAQ LQTNYPSSD. The protein encoded by this gene is a member of the basic helix-loop-helix leucine zipper (bHLHZ) fami