Immunogen sequence: FLDRDIGRSL RPLFLCLRLH GITKGKDLEV LRHLNFFPES WLDQVTVNHY HALENGGDMV HLKDLNTQAV RFGLLFNQEN TTYSKTIALY GFFFK Highest antigen sequence identity to the following orthologs: Mouse - 74%, Rat - 74%. BTBD16 encodes a protein that contains a BT