Calcium-Driven Activation of Gelsolin: Mechanism and the Active-State Ensemble
Gelsolin is a master regulator of the actin cytoskeleton whose activity is controlled by large Ca2+ dependent conformational transitions of its 6 domains (G1-G6). Despite decades of biochemical and cellular studies, the structural basis of activation of the full-length protein remains poorly understood because active gelsolin is highly dynamic and has largely escaped structural characterization.…
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