Positive test controls include: MCF7, Mouse brain, Mouse heart, Mouse kidney, Rat skeletal muscle. Immunogen sequence: MSTAQSLKSV DYEVFGRVQG VCFRMYTEDE ARKIGVVGWV KNTSKGTVTG QVQGPEDKVN SMKSWLSKVG SPSSRIDRTN FSNEKTISKL EYSNFSIRY. Its physiological role is