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Physical Review Letters – 3 October 2003
Volume 91, Issue 14

Illustration of a proposed structure of a filamentous actin bundle at a branching site, showing how the protein α-actinin (red) induces a networklike structure in the F-actin protein by forming cross links between its filaments. The model is based on a synchrotron x-ray scattering study which indicates that the α-actinin forms a disordered square lattice within the bundle. [O. Pelletier, E. Pokidysheva, L. S. Hirst, N. Bouxsein, Y. Li, and C. R. Safinya, Phys. Rev. Lett. 91, 148102 (2003)]

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