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Biophysics Graduate Group, UC Berkeley, Berkeley, CA 94720, United States.
Kinetochores are large macromolecular assemblies that link chromosomes to spindle microtubules (MTs) during mitosis. Here we review recent advances in the study of core MT-binding kinetochore complexes using electron microcopy methods in vitro and nanometer-accuracy fluorescence microscopy in vivo. We synthesize these findings in novel three-dimensional models of both the budding yeast and vertebrate kinetochore in different stages of mitosis. There is a growing consensus that kinetochores are highly dynamic, supra-molecular machines that undergo dramatic structural rearrangements in response to MT capture and spindle forces during mitosis.
Copyright © 2011 Elsevier Ltd. All rights reserved.
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