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Collage of 3 movies (2.1-2.3) showing bundling of dynamic microtubules by 50 nM starPEG-(KA7)4-TAMRA at a three-fold better time resolution as compared to Movie 4. Only the starPEG-(KA7)4-TAMRA signal is shown. Blue arrowheads indicate single zippering events, white arrowheads the final microtubule overlap. See also Movie 4 and Supplementary Figure 7.
