3PN7:
reference: Visualizing key hinges and a potential major source of compliance in the lever arm of myosin., Brown JH, Senthil Kumar VS, O'Neall-Hennessey E, Reshetnikova L, Robinson H, Nguyen-McCarty M, Szent-Gyorgyi AG, Cohen C, Proc Natl Acad Sci U S A. 2010 Dec 13. PMID: 21149681

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