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. 2021 Aug 19;32(18):1677–1689. doi: 10.1091/mbc.E21-02-0082

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© 2021 Barrick et al. “ASCB®,” “The American Society for Cell Biology®,” and “Molecular Biology of the Cell®” are registered trademarks of The American Society for Cell Biology.

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FIGURE 1: — Structure of the RTF (PDB ID 6KN7) showing actin (tan), tropomyosin (blue/cyan), troponin I (green), troponin C (orange), troponin T (magenta), and R134 of troponin T (yellow). The dashed line represents an unstructured region of troponin T that is not resolved in the structure. Adjacent tropomyosin units are shown as cyan and blue to demonstrate the proximity of R134 to the overlap region.