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Effector Glycosyltransferases in Legionella
Legionella causes severe pneumonia in humans. The pathogen produces an array of effectors, which interfere with host cell functions. Among them are the glucosyltransferases Lgt1, Lgt2 and Lgt3 from L. pneumophila. Lgt1 and Lgt2 are produced predominately in the post-exponential phase of bacterial gr...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
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Frontiers Research Foundation
2011
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3153043/ https://www.ncbi.nlm.nih.gov/pubmed/21833323 http://dx.doi.org/10.3389/fmicb.2011.00076 |
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author | Belyi, Yury Jank, Thomas Aktories, Klaus |
author_facet | Belyi, Yury Jank, Thomas Aktories, Klaus |
author_sort | Belyi, Yury |
collection | PubMed |
description | Legionella causes severe pneumonia in humans. The pathogen produces an array of effectors, which interfere with host cell functions. Among them are the glucosyltransferases Lgt1, Lgt2 and Lgt3 from L. pneumophila. Lgt1 and Lgt2 are produced predominately in the post-exponential phase of bacterial growth, while synthesis of Lgt3 is induced mainly in the lag-phase before intracellular replication of bacteria starts. Lgt glucosyltransferases are structurally similar to clostridial glucosylating toxins. The enzymes use UDP–glucose as a donor substrate and modify eukaryotic elongation factor eEF1A at serine-53. This modification results in inhibition of protein synthesis and death of target cells.In addition to Lgts, Legionella genomes disclose several genes, coding for effector proteins likely to possess glycosyltransferase activities, including SetA (subversion of eukaryotic vesicle trafficking A), which influences vesicular trafficking in the yeast model system and displays tropism for late endosomal/lysosomal compartments of mammalian cells. This review mainly discusses recent results on the structure–function relationship of Lgt glucosyltransferases. |
format | Online Article Text |
id | pubmed-3153043 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2011 |
publisher | Frontiers Research Foundation |
record_format | MEDLINE/PubMed |
spelling | pubmed-31530432011-08-10 Effector Glycosyltransferases in Legionella Belyi, Yury Jank, Thomas Aktories, Klaus Front Microbiol Microbiology Legionella causes severe pneumonia in humans. The pathogen produces an array of effectors, which interfere with host cell functions. Among them are the glucosyltransferases Lgt1, Lgt2 and Lgt3 from L. pneumophila. Lgt1 and Lgt2 are produced predominately in the post-exponential phase of bacterial growth, while synthesis of Lgt3 is induced mainly in the lag-phase before intracellular replication of bacteria starts. Lgt glucosyltransferases are structurally similar to clostridial glucosylating toxins. The enzymes use UDP–glucose as a donor substrate and modify eukaryotic elongation factor eEF1A at serine-53. This modification results in inhibition of protein synthesis and death of target cells.In addition to Lgts, Legionella genomes disclose several genes, coding for effector proteins likely to possess glycosyltransferase activities, including SetA (subversion of eukaryotic vesicle trafficking A), which influences vesicular trafficking in the yeast model system and displays tropism for late endosomal/lysosomal compartments of mammalian cells. This review mainly discusses recent results on the structure–function relationship of Lgt glucosyltransferases. Frontiers Research Foundation 2011-04-12 /pmc/articles/PMC3153043/ /pubmed/21833323 http://dx.doi.org/10.3389/fmicb.2011.00076 Text en Copyright © 2011 Belyi, Jank and Aktories. http://www.frontiersin.org/licenseagreement This is an open-access article subject to a non-exclusive license between the authors and Frontiers Media SA, which permits use, distribution and reproduction in other forums, provided the original authors and source are credited and other Frontiers conditions are complied with. |
spellingShingle | Microbiology Belyi, Yury Jank, Thomas Aktories, Klaus Effector Glycosyltransferases in Legionella |
title | Effector Glycosyltransferases in Legionella |
title_full | Effector Glycosyltransferases in Legionella |
title_fullStr | Effector Glycosyltransferases in Legionella |
title_full_unstemmed | Effector Glycosyltransferases in Legionella |
title_short | Effector Glycosyltransferases in Legionella |
title_sort | effector glycosyltransferases in legionella |
topic | Microbiology |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3153043/ https://www.ncbi.nlm.nih.gov/pubmed/21833323 http://dx.doi.org/10.3389/fmicb.2011.00076 |
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