DOI: 10.1073/pnas.93.18.9839. The alginate regulator AlgR and an associated sensor FimS are required for twitching motility in Pseudomonas aeruginosa.

The alginate regulator AlgR and an associated sensor FimS are required for twitching motility in Pseudomonas aeruginosa.

10.1073/pnas.93.18.9839

Crossref journal-article

Proceedings of the National Academy of Sciences

Proceedings of the National Academy of Sciences (341)

Abstract

Mucoid strains of Pseudomonas aeruginosa isolated from the lungs of cystic fibrosis patients produce large amounts of the exopolysaccharide alginate. AlgR has long been considered a key regulator of alginate production, but its cognate sensor has not been identified. Here we show that AlgR is required for twitching motility, which is a form of bacterial surface translocation mediated by type 4 fimbriae. Adjacent to algR we have identified a sensor gene (fimS), which is also required for twitching motility. However, FimS does not appear to be required for alginate production in mucoid strains. FimS and AlgR are representative of a new subclass of two-component transmitter-receiver regulatory systems. The alternative sigma factor AlgU also affects both alginate production and twitching motility. Therefore, these two virulence determinants appear to be closely associated and coordinately regulated.

Bibliography

Whitchurch, C. B., Alm, R. A., & Mattick, J. S. (1996). The alginate regulator AlgR and an associated sensor FimS are required for twitching motility in Pseudomonas aeruginosa. Proceedings of the National Academy of Sciences, 93(18), 9839â9843.

Authors 3

C B Whitchurch (first)
R A Alm (additional)
J S Mattick (additional)

References 0 Referenced 122

None

Dates

Type	When
Created	23 years, 1 month ago (July 26, 2002, 10:34 a.m.)
Deposited	3 years, 4 months ago (April 13, 2022, 2:16 p.m.)
Indexed	1 month, 2 weeks ago (July 16, 2025, 7:48 a.m.)
Issued	29 years ago (Sept. 3, 1996)
Published	29 years ago (Sept. 3, 1996)
Published Online	29 years ago (Sept. 3, 1996)
Published Print	29 years ago (Sept. 3, 1996)

Funders 0

None

BibTeX

@article{Whitchurch_1996, title={The alginate regulator AlgR and an associated sensor FimS are required for twitching motility in Pseudomonas aeruginosa.}, volume={93}, ISSN={1091-6490}, url={http://dx.doi.org/10.1073/pnas.93.18.9839}, DOI={10.1073/pnas.93.18.9839}, number={18}, journal={Proceedings of the National Academy of Sciences}, publisher={Proceedings of the National Academy of Sciences}, author={Whitchurch, C B and Alm, R A and Mattick, J S}, year={1996}, month=sep, pages={9839–9843} }

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