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Article

The ATP-waiting conformation of rotating F1-ATPase revealed by single-pair fluorescence resonance energy transfer.

Proceedings of the National Academy of Sciences of the United States of America - 5 Aug 2003

Yasuda Ryohei, Masaike Tomoko, Adachi Kengo, Noji Hiroyuki, Itoh Hiroyasu, Kinosita Kazuhiko

Abstract excerpt

F1-ATPase is an ATP-driven rotary motor in which a rod-shaped gamma subunit rotates inside a cylinder made of alpha3beta3 subunits. To elucidate the conformations of rotating F1, we measured fluorescence resonance energy transfer (FRET) between a donor on one of the three betas and an acceptor on gamma in single F1 molecules. The yield of FRET changed stepwise at low ATP concentrations, reflecting the stepwise...

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Identifiers

PMID: 12876203
DOI: 10.1073/pnas.1637860100
PMCID: PMC170915

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