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ParB deficiency in Pseudomonas aeruginosa destabilizes the partner protein ParA and affects a variety of physiological parameters
Deletions leading to complete or partial removal of ParB were introduced into the Pseudomonas aeruginosa chromosome. Fluorescence microscopy of fixed cells showed that ParB mutants lacking the C-terminal domain or HTH motif formed multiple, less intense foci scattered irregularly, in contrast to the...
Autores principales: | , , , |
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Formato: | Texto |
Lenguaje: | English |
Publicado: |
Microbiology Society
2009
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2895232/ https://www.ncbi.nlm.nih.gov/pubmed/19332810 http://dx.doi.org/10.1099/mic.0.024661-0 |
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author | Bartosik, A. A. Mierzejewska, J. Thomas, C. M. Jagura-Burdzy, G. |
author_facet | Bartosik, A. A. Mierzejewska, J. Thomas, C. M. Jagura-Burdzy, G. |
author_sort | Bartosik, A. A. |
collection | PubMed |
description | Deletions leading to complete or partial removal of ParB were introduced into the Pseudomonas aeruginosa chromosome. Fluorescence microscopy of fixed cells showed that ParB mutants lacking the C-terminal domain or HTH motif formed multiple, less intense foci scattered irregularly, in contrast to the one to four ParB foci per cell symmetrically distributed in wild-type P. aeruginosa. All parB mutations affected both bacterial growth and swarming and swimming motilities, and increased the production of anucleate cells. Similar effects were observed after inactivation of parA of P. aeruginosa. As complete loss of ParA destabilized its partner ParB it was unclear deficiency of which protein is responsible for the mutant phenotypes. Analysis of four parB mutants showed that complete loss of ParB destabilized ParA whereas three mutants that retained the N-terminal 90 aa of ParB did not. As all four parB mutants demonstrate the same defects it can be concluded that either ParB, or ParA and ParB in combination, plays an important role in nucleoid distribution, growth and motility in P. aeruginosa. |
format | Text |
id | pubmed-2895232 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2009 |
publisher | Microbiology Society |
record_format | MEDLINE/PubMed |
spelling | pubmed-28952322010-07-06 ParB deficiency in Pseudomonas aeruginosa destabilizes the partner protein ParA and affects a variety of physiological parameters Bartosik, A. A. Mierzejewska, J. Thomas, C. M. Jagura-Burdzy, G. Microbiology (Reading) Cell and Molecular Biology of Microbes Deletions leading to complete or partial removal of ParB were introduced into the Pseudomonas aeruginosa chromosome. Fluorescence microscopy of fixed cells showed that ParB mutants lacking the C-terminal domain or HTH motif formed multiple, less intense foci scattered irregularly, in contrast to the one to four ParB foci per cell symmetrically distributed in wild-type P. aeruginosa. All parB mutations affected both bacterial growth and swarming and swimming motilities, and increased the production of anucleate cells. Similar effects were observed after inactivation of parA of P. aeruginosa. As complete loss of ParA destabilized its partner ParB it was unclear deficiency of which protein is responsible for the mutant phenotypes. Analysis of four parB mutants showed that complete loss of ParB destabilized ParA whereas three mutants that retained the N-terminal 90 aa of ParB did not. As all four parB mutants demonstrate the same defects it can be concluded that either ParB, or ParA and ParB in combination, plays an important role in nucleoid distribution, growth and motility in P. aeruginosa. Microbiology Society 2009-04 /pmc/articles/PMC2895232/ /pubmed/19332810 http://dx.doi.org/10.1099/mic.0.024661-0 Text en Copyright © 2009, SGM http://creativecommons.org/licenses/by/2.5/ This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Cell and Molecular Biology of Microbes Bartosik, A. A. Mierzejewska, J. Thomas, C. M. Jagura-Burdzy, G. ParB deficiency in Pseudomonas aeruginosa destabilizes the partner protein ParA and affects a variety of physiological parameters |
title | ParB deficiency in Pseudomonas aeruginosa destabilizes the partner protein ParA and affects a variety of physiological parameters |
title_full | ParB deficiency in Pseudomonas aeruginosa destabilizes the partner protein ParA and affects a variety of physiological parameters |
title_fullStr | ParB deficiency in Pseudomonas aeruginosa destabilizes the partner protein ParA and affects a variety of physiological parameters |
title_full_unstemmed | ParB deficiency in Pseudomonas aeruginosa destabilizes the partner protein ParA and affects a variety of physiological parameters |
title_short | ParB deficiency in Pseudomonas aeruginosa destabilizes the partner protein ParA and affects a variety of physiological parameters |
title_sort | parb deficiency in pseudomonas aeruginosa destabilizes the partner protein para and affects a variety of physiological parameters |
topic | Cell and Molecular Biology of Microbes |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2895232/ https://www.ncbi.nlm.nih.gov/pubmed/19332810 http://dx.doi.org/10.1099/mic.0.024661-0 |
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