Structure of cardiac muscle troponin C unexpectedly reveals a closed regulatory domain.
Sia, S.K., Li, M.X., Spyracopoulos, L., Gagne, S.M., Liu, W., Putkey, J.A., Sykes, B.D.(1997) J Biol Chem 272: 18216-18221
- PubMed: 9218458 
- DOI: 10.1074/jbc.272.29.18216
- Primary Citation of Related Structures:  
1AJ4, 2CTN, 3CTN - PubMed Abstract: 
The regulation of cardiac muscle contraction must differ from that of skeletal muscles to effect different physiological and contractile properties. Cardiac troponin C (TnC), the key regulator of cardiac muscle contraction, possesses different functional and Ca2+-binding properties compared with skeletal TnC and features a Ca2+-binding site I, which is naturally inactive ...