Switching dynamics of the bacterial flagellar motor near zero load.
Proc Natl Acad Sci U S A
; 111(44): 15752-5, 2014 Nov 04.
Article
em En
| MEDLINE
| ID: mdl-25331864
ABSTRACT
Switching dynamics of flagellar motors of Escherichia coli is commonly observed through markers attached to the flagellar filaments. To eliminate possible complications resulting from the conformational transitions of these filaments and to look at the output of motors more directly, we monitored motor rotation by attaching nanogold spheres to the hooks of cells lacking filaments. We observed exponentially distributed counterclockwise (CCW) and clockwise (CW) intervals and Lorentzian power spectra of the switching time series consistent with models that treat motor switching as a two-state Poisson process.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Escherichia coli K12
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Nanopartículas Metálicas
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Flagelos
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Ouro
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Modelos Teóricos
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Movimento
Idioma:
En
Revista:
Proc Natl Acad Sci U S A
Ano de publicação:
2014
Tipo de documento:
Article