Article
Troponin-I interacts with the Met47 region of skeletal muscle actin. Implications for the mechanism of thin filament regulation by calcium.
Journal of molecular biology - 22 Feb 2002
Luo Yin, Leszyk John, Li Bing, Li Zhixing, Gergely John, Tao Terence
Abstract excerpt
Striated muscles are regulated by Ca(2+) via the thin filament proteins troponin (Tn) and tropomyosin (Tm). In the absence of Ca(2+), contraction is inhibited, whereas myosin-actin interaction and contraction can take place in its presence. Although it is well established that the interaction of troponin-I (TnI), the inhibitory subunit of Tn, with actin is required for the inhibition process and that there are...
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