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Structural biology

Actin in a twist

How monomers of the cytoskeletal protein actin join to form the stable polymers crucial to muscle contraction and cellular motility has been a long-standing question. A state-of-the-art approach provides an answer.

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Figure 1: Monomer versus polymer.
Figure 2: The secret of G- to F-actin transition.

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Holmes, K. Actin in a twist. Nature 457, 389–390 (2009). https://doi.org/10.1038/457389a

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