Abstract
Flagellation in archaea is widespread and is involved in swimming motility. Here, we demonstrate that the structural flagellin gene from the crenarchaeaon Sulfolobus solfataricus is highly expressed in stationary-phase-grown cells and under unfavorable nutritional conditions. A mutant in a flagellar auxiliary gene, flaJ, was found to be nonmotile. Electron microscopic imaging of the flagellum indicates that the filaments are composed of right-handed helices.
Publication types
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Research Support, Non-U.S. Gov't
MeSH terms
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Archaeal Proteins / genetics*
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Blotting, Northern
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Flagella / genetics
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Flagella / physiology*
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Flagella / ultrastructure
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Flagellin / genetics*
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Gene Expression Regulation, Archaeal
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Gene Order
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Microscopy, Electron, Transmission
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Mutation
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Operon
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Sulfolobus solfataricus / genetics*
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Sulfolobus solfataricus / physiology
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Sulfolobus solfataricus / ultrastructure
Substances
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Archaeal Proteins
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Flagellin