Actin filament short note
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actin filaments are the linear polymers of globular actin (G-actin) subunits and occur as microfilaments in the cytoskeleton and as thin filaments, which are part of the contractile apparatus, in muscle and nonmuscle cells (see contractile bundles).
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under physiological conditions g-actin is transformed to f- actin by ATP where the role of ATP is essential.
the helical f-actin filament found in muscles also contain atropomysin molecule which is 40 nanometre.long Protein that is wrapped around the f-actin helix..
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