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. 2000 Jul 24;150(2):361–376. doi: 10.1083/jcb.150.2.361

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© 2000 The Rockefeller University Press

This article is distributed under the terms of an Attribution–Noncommercial–Share Alike–No Mirror Sites license for the first six months after the publication date (see http://www.rupress.org/terms). After six months it is available under a Creative Commons License (Attribution–Noncommercial–Share Alike 4.0 Unported license, as described at http://creativecommons.org/licenses/by-nc-sa/4.0/).

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Localization of myosin-IIA and -V in Xenopus egg extracts. (A) Triple label fluorescence analysis of myosin-IIA (blue), microtubules (red), and F-actin (green) in rapidly frozen extracts. Myosin-IIA punctae (arrowheads) are found predominantly on F-actin bundles. In some regions, myosin-2, microtubules, and F-actin are colocalized (triple arrowheads); in other regions, F-actin and microtubules are colocalized in the absence of myosin-2 (arrows). (B) Triple label fluorescence analysis of myosin-V (blue), microtubules (red), and F-actin (green) in rapidly frozen extracts. Most of the myosin-V (arrowheads) is found on microtubules or the substrate. In both A and B colocalization of red, blue and green result in white.