Question

Explain the structure of contractile protein in skeletal muscle

Answer 1

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By contractile proteins, we mean actin (thin filament) and myosin (thick filament). Each actin filament is composed of two helical “F” actin (filamentous actin) and each 'F' actin is made up of multiple units of 'G' actin. ... During muscle relaxation, troponin covers the binding sites for myosin on actin filaments.