Actin-induced Closure of the Actin-binding Cleft of Smooth Muscle Myosin

The putative actin-binding interface of myosin is separated by a large cleft that extends into the base of the nucleotide binding pocket, suggesting that it may be important for mediating the nucleotide-dependent changes in the affinity for myosin on actin. We have genetically engineered a truncated...

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