Unrevealed part of myosin's powerstroke accounts for high efficiency of muscle contraction

Unrevealed part of myosin's powerstroke accounts for high efficiency of muscle contraction BackgroundMyosin II, the motor protein driving muscle contraction, uses energy of ATP hydrolysis to produce movement along actin. The key step of energy transduction is the powerstroke, involving rotation of myosin's lever while myosin is attached to actin. Macroscopic measurements indicated high thermodynamic efficiency for energy conversion. However, single-molecule experiments indicated lower efficiency, provoking a long-standing discrepancy. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Biochimica et Biophysica Acta (BBA) - General Subjects Elsevier

Unrevealed part of myosin's powerstroke accounts for high efficiency of muscle contraction

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Publisher
Elsevier
Copyright
Copyright © 2017 Elsevier B.V.
ISSN
0304-4165
D.O.I.
10.1016/j.bbagen.2017.05.024
Publisher site
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Abstract

BackgroundMyosin II, the motor protein driving muscle contraction, uses energy of ATP hydrolysis to produce movement along actin. The key step of energy transduction is the powerstroke, involving rotation of myosin's lever while myosin is attached to actin. Macroscopic measurements indicated high thermodynamic efficiency for energy conversion. However, single-molecule experiments indicated lower efficiency, provoking a long-standing discrepancy.

Journal

Biochimica et Biophysica Acta (BBA) - General SubjectsElsevier

Published: Sep 1, 2017

References

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