Immunogen sequence: QEALTEHYKH HWFPEKPSKG SGYRCIRINH KMDPIISRVA SQIGLSQPQL HQLLPSELTL WVDPYEVSYR IGEDGSICVL YEEAPLAASC GLLTCKNQVL LG Highest antigen sequence identity to the following orthologs: Mouse - 92%, Rat - 92%. The protein encoded by this gene is