Tropomyosin is the prototypical two-chained, α-helical coiled coil protein that associates end-to-end and binds to both sides of the actin filament. Each tropomyosin molecule spans four to seven actin monomers in the filament, depending on the size of the tropomyosin.
Is tropomyosin a thick or thin filament?
The thin filaments contain actin, tropomyosin, troponins C, I, and T and nebulin.
The thick filaments are composed of myosin with the globular heads forming cross-bridges with thin filaments.Jul 16, 2008
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