Article
Conformation of the regulatory domain of cardiac muscle troponin C in its complex with cardiac troponin I.
The Journal of biological chemistry - 29 Oct 1999
Dong W J, Xing J, Villain M, Hellinger M, Robinson J M, Chandra M, Solaro R J, Umeda P K, Cheung H C
Abstract excerpt
Calcium activation of fast striated muscle results from an opening of the regulatory N-terminal domain of fast skeletal troponin C (fsTnC), and a substantial exposure of a hydrophobic patch, essential for Ca(2+)-dependent interaction with fast skeletal troponin I (fsTnI). This interaction is obligatory to relieve the inhibition of strong, force-generating actin-myosin interactions. We have determined intersite...
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