Calcium binding to troponin causes a shift in the troponin-tropomyosin complex, exposing the active sites on actin for myosin binding.
1. Ca binds to troponin, troponin-tropomyosin 2. complex shifts such that active sites on actin become exposed
| Front | How does troponin "unblock" actin? |
|---|---|
| Back | 1. Ca binds to troponin, troponin-tropomyosin 2. complex shifts such that active sites on actin become exposed |
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