Immunogen sequence: KSESIITQSEE KADFVIIPAE GIENRTEGTD SPLSRDWRPG SPGTYLETSW EEQLLEQQEY LEKEMEEAKK MISGLQALLL NGSLPEDEQE RPLALCEPGV NP Highest antigen sequence identity to the following orthologs - mouse 89%, rat 92%. This gene encodes one of four subunit