Movie showing loose contact that forms between barbed end subunits of actin filaments (VIDEO)

University of Texas at Austin, Texas Advanced Computing Center

Caption

Subunits B (blue), B-1 (cyan), and B-2 (gray) depicted as ribbon diagrams. Initially bound to B-1, subunit B unflattens, straining contact between subunits until they separate. The resulting loose lateral connection causes subunit B to fluctuate dynamically with respect to the rest of the filament while secured by its D-loop to subunit B-2.

Credit

Vilmos Zsolnay, University of Chicago.

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