Actin and Myosin

ID #2141

I know that myosin is involved in contraction in muscle cells as well as other functions. But is it itself part of the cytoskeleton?

Myosin is an important feature of actin networks since it is responsible for movement. However, I believe that the term "cytoskeleton" only refers to the network of protein filaments in eukaryotic cells which would include actin, intermediate filaments and microtubules. This is also the definition used in both textbooks.

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