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Structure of the native cardiac thin filament at pCa=5.8 having upper Tn in Ca2+ free state and lower Tn in Ca2+ bound state
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Structural highlights
FunctionTNNC1_PIG Troponin is the central regulatory protein of striated muscle contraction. Tn consists of three components: Tn-I which is the inhibitor of actomyosin ATPase, Tn-T which contains the binding site for tropomyosin and Tn-C. The binding of calcium to Tn-C abolishes the inhibitory action of Tn on actin filaments. See AlsoContents | ||||||||||||||||||
This page was last modified 14:57, 6 March 2024.