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Mechanism and kinetics of a sodium-driven bacterial flagellar motor

Abstract:

The bacterial flagellar motor is a large rotary molecular machine that propels swimming bacteria, powered by a transmembrane electrochemical potential difference. It consists of an ∼50-nm rotor and up to ∼10 independent stators anchored to the cell wall. We measured torque-speed relationships of single-stator motors under 25 different combinations of electrical and chemical potential. All 25 torque-speed curves had the same concave-down shape as fully energized wild-type motors, and each stat...

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Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.1073/pnas.1301664110

Authors


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Institution:
University of Oxford
Division:
MPLS
Department:
Physics
Sub department:
Condensed Matter Physics
Role:
Author
More by this author
Institution:
University of Oxford
Division:
MPLS
Department:
Physics
Role:
Author
More from this funder
Name:
National Science Council
Grant:
NSC98-2112-M-008-010-MY3
More from this funder
Name:
Combined United Kingdom Research Council
Funding agency for:
Lo, C
Berry, R
More from this funder
Name:
Biotechnology and Biological Sciences Research Council
Funding agency for:
Lo, C
Berry, R
Publisher:
National Academy of Sciences
Journal:
Proceedings of the National Academy of Sciences of the United States of America More from this journal
Volume:
110
Issue:
28
Pages:
E2544-E2551
Publication date:
2013-07-01
DOI:
EISSN:
1091-6490
ISSN:
0027-8424
Language:
English
Keywords:
Pubs id:
pubs:416687
UUID:
uuid:6b99adfa-1d0a-40ad-aa02-78011dd0fd18
Local pid:
pubs:416687
Source identifiers:
416687
Deposit date:
2013-11-17

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