Positive test controls include: Mouse heart, Rat heart . Immunogen sequence: MDDIYKAAVE QLTEEQKNEF KAAFDIFVLG AEDGCISTKE LGKVMRMLGQ NPTPEELQEM IDEVDEDGSG TVDFDEFLVM MVRCMKDDSK GKSEEELSDL. Troponin (Tn) is the central regulatory protein of striated muscle