At the physiological protein osmotic pressure, the angle formed between the long axis of the actin monomer and the pointed end of the filament axis is roughly 61° in F-actin and about 90° in the myosin subfragment 1 - decorated F-actin. This implies that, in the course of the contractile cycle, actin itself contributes, by about 4 nm, to the displacement of the actin filament toward the center of the sarcomer. © 1994 Academic Press, Inc.
Actin may contribute to the power stroke in the binary actomyosin system
GRAZI, Enrico;
1994
Abstract
At the physiological protein osmotic pressure, the angle formed between the long axis of the actin monomer and the pointed end of the filament axis is roughly 61° in F-actin and about 90° in the myosin subfragment 1 - decorated F-actin. This implies that, in the course of the contractile cycle, actin itself contributes, by about 4 nm, to the displacement of the actin filament toward the center of the sarcomer. © 1994 Academic Press, Inc.File in questo prodotto:
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