- 著者
-
西坂 崇之
政池 知子
- 出版者
- 一般社団法人 日本生物物理学会
- 雑誌
- 生物物理 (ISSN:05824052)
- 巻号頁・発行日
- vol.47, no.2, pp.118-123, 2007 (Released:2007-03-31)
- 参考文献数
- 18
F1-ATPase is a rotary molecular motor in which unidirectional rotation of the central γ-subunit is powered by ATP hydrolysis in three catalytic sites arranged 120° apart around γ. To see how hydrolysis reactions produce mechanical rotation, we observed rotation of γ under the optical microscope, while watching which of the three sites bound and released a fluorescent ATP analog. The reaction scheme, including both the number of site occupancy and reactions that trigger substeps, is now established.