In the absence of actin, myosin will hydrolyze ATP, but very slowly. Based on the mechanism shown in the figure, what could explain this slow rate? ΟΟ Without actin, the reversible ATP hydrolysis by myosin shifts in favor of ATP synthesis. Without actin, the attacking water molecule cannot easily reach the ATP bound to myosin. Without actin, myosin releases ADP and P; very slowly after hydrolyzing ATP. Without actin, myosin cannot undergo the conformational changes needed to hydrolyze ATP.

In the absence of actin, myosin will hydrolyze ATP, but very slowly. Based on the mechanism shown in the figure, what could explain this slow rate? ΟΟ Without actin, the reversible ATP hydrolysis by myosin shifts in favor of ATP synthesis. Without actin, the attacking water molecule cannot easily reach the ATP bound to myosin. Without actin, myosin releases ADP and P; very slowly after hydrolyzing ATP. Without actin, myosin cannot undergo the conformational changes needed to hydrolyze ATP.

Biology 2e

2nd Edition

ISBN:9781947172517

Author:Matthew Douglas, Jung Choi, Mary Ann Clark

Publisher:Matthew Douglas, Jung Choi, Mary Ann Clark

Chapter38: The Musculoskeletal System

Section: Chapter Questions

Problem 3VCQ: Figure 38.38 The deadly nerve gas Sarin irreversibly inhibits acetycholinesterase. What effect would...

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Figure 38.38 The deadly nerve gas Sarin irreversibly inhibits acetycholinesterase. What effect would Sarin have on muscle contraction?
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