Direct visualization of secondary structures of F-actin by electron cryomicroscopy

Takashi Fujii, Atsuko H. Iwane, Toshio Yanagida and Keiichi Namba ()
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Takashi Fujii: Graduate School of Frontier Biosciences, Osaka University, 1-3 Yamadaoka, Suita, Osaka 565-0871, Japan
Atsuko H. Iwane: Graduate School of Frontier Biosciences, Osaka University, 1-3 Yamadaoka, Suita, Osaka 565-0871, Japan
Toshio Yanagida: Graduate School of Frontier Biosciences, Osaka University, 1-3 Yamadaoka, Suita, Osaka 565-0871, Japan
Keiichi Namba: Graduate School of Frontier Biosciences, Osaka University, 1-3 Yamadaoka, Suita, Osaka 565-0871, Japan

Nature, 2010, vol. 467, issue 7316, 724-728

Abstract: F-actin's secondary structure Filamentous F-actin, an essential contractile component of muscle fibres and a major component of the cytoskeleton, is formed through polymerization of globular G-actin. In this study, Keiichi Namba and colleagues report the structure of F-actin by electron cryomicroscopy and build a complete atomic model of F-actin. This new structure will aid in our understanding of the mechanism of actin assembly and disassembly.

Date: 2010
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DOI: 10.1038/nature09372

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