Immunogen sequence: TLDMLESSQD NMRTSWVSQM FSEIDVDNLG HITLCNAVQC IRNLNPGLKT SKIELKFKEL HKSKDKAGTE VTKEEFIEVF HELCTRPEIY FLLVQFSSNK EFLDTKDLMM FLEAEQGVAH INEEISLEII HKYEPSKEGQ EKGWLSIDGF TNYLMSPDCY IFDPEHKKVC Q. May play an role in the regulation of Ins(1,