Population
In vitro preparation of chymotryptic myosin subfragment 1 (S1) and F-actin
Comparison
Photolysis of caged ATP to rapidly produce 1-2… vs Absence of ATP (pre-photolysis) and free S1
Design
Preclinical
Authors
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No immediate clinical implications; extends biophysical models of myosin-actin interactions in the ATPase cycle.
This study provides direct biophysical evidence that myosin heads undergo microsecond rotational motion when bound to actin during the ATPase cycle.
Berger et al. (1989) studied this question.
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