... toactin and inhibits contraction. Upon muscle stimula-tion, Ca2+binds to TnC and induces the release of theinhibition by TnI, resulting in muscle contraction. Tounderstand the molecular mechanisms ... (lanes h–l) or presence (lanes m–q) of equimolar amounts of Akazara scallop TnC. Lanes h and m, ATnI-52K; lanesi and n, ATnI-19K; lanes j and o, ATnI1)128; lanes k and p, ATnI130)252; lanes ... (2005)Functional importance of Ca2+-deficient N-terminallobe of molluscan troponin C in troponin regulation.Arch Biochem Biophys 436, 83–90.H. Tanaka et al. Functional regions of molluskan TnIFEBS...