Key players and individualists of cyclic-di-gmp signaling in burkholderia cenocepacia

Burkholderia cenocepacia H111 is an opportunistic pathogen associated with chronic lung infections in cystic fibrosis patients. Biofilm formation, motility and virulence of B. cenocepacia are regulated by the second messenger cyclic di-guanosine monophosphate (c-di-GMP). In the present study, we ana...

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Main Authors: Richter, Anja M., Fazli, Mustafa, Schmid, Nadine, Shilling, Rebecca, Suppiger, Angela, Givskov, Michael, Eberl, Leo, Tolker-Nielsen, Tim
Other Authors: Singapore Centre for Environmental Life Sciences and Engineering
Format: Article
Language:English
Published: 2019
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Online Access:https://hdl.handle.net/10356/90251
http://hdl.handle.net/10220/48464
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-902512020-09-21T11:33:55Z Key players and individualists of cyclic-di-gmp signaling in burkholderia cenocepacia Richter, Anja M. Fazli, Mustafa Schmid, Nadine Shilling, Rebecca Suppiger, Angela Givskov, Michael Eberl, Leo Tolker-Nielsen, Tim Singapore Centre for Environmental Life Sciences and Engineering Burkholderia Cenocepacia DRNTU::Science::General Cyclic-di-GMP Burkholderia cenocepacia H111 is an opportunistic pathogen associated with chronic lung infections in cystic fibrosis patients. Biofilm formation, motility and virulence of B. cenocepacia are regulated by the second messenger cyclic di-guanosine monophosphate (c-di-GMP). In the present study, we analyzed the role of all 25 putative c-di-GMP metabolizing proteins of B. cenocepacia H111 with respect to motility, colony morphology, pellicle formation, biofilm formation, and virulence. We found that RpfR is a key regulator of c-di-GMP signaling in B. cenocepacia, affecting a broad spectrum of phenotypes under various environmental conditions. In addition, we identified Bcal2449 as a regulator of B. cenocepacia virulence in Galleria mellonella larvae. While Bcal2449 consists of protein domains that may catalyze both c-di-GMP synthesis and degradation, only the latter was essential for larvae killing, suggesting that a decreased c-di-GMP level mediated by the Bcal2449 protein is required for virulence of B. cenocepacia. Finally, our work suggests that some individual proteins play a role in regulating exclusively motility (CdpA), biofilm formation (Bcam1160) or both (Bcam2836). Published version 2019-05-29T08:48:14Z 2019-12-06T17:44:03Z 2019-05-29T08:48:14Z 2019-12-06T17:44:03Z 2019 Journal Article Richter, A. M., Fazli, M., Schmid, N., Shilling, R., Suppiger, A., Givskov, M., . . . Tolker-Nielsen, T. (2019). Key Players and Individualists of Cyclic-di-GMP Signaling in Burkholderia cenocepacia. Frontiers in Microbiology, 9, 3286-. doi: 10.3389/fmicb.2018.03286 https://hdl.handle.net/10356/90251 http://hdl.handle.net/10220/48464 10.3389/fmicb.2018.03286 en Frontiers in Microbiology © 2019 Richter, Fazli, Schmid, Shilling, Suppiger, Givskov, Eberl and Tolker-Nielsen. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms. 15 p. application/pdf
institution Nanyang Technological University
building NTU Library
country Singapore
collection DR-NTU
language English
topic Burkholderia Cenocepacia
DRNTU::Science::General
Cyclic-di-GMP
spellingShingle Burkholderia Cenocepacia
DRNTU::Science::General
Cyclic-di-GMP
Richter, Anja M.
Fazli, Mustafa
Schmid, Nadine
Shilling, Rebecca
Suppiger, Angela
Givskov, Michael
Eberl, Leo
Tolker-Nielsen, Tim
Key players and individualists of cyclic-di-gmp signaling in burkholderia cenocepacia
description Burkholderia cenocepacia H111 is an opportunistic pathogen associated with chronic lung infections in cystic fibrosis patients. Biofilm formation, motility and virulence of B. cenocepacia are regulated by the second messenger cyclic di-guanosine monophosphate (c-di-GMP). In the present study, we analyzed the role of all 25 putative c-di-GMP metabolizing proteins of B. cenocepacia H111 with respect to motility, colony morphology, pellicle formation, biofilm formation, and virulence. We found that RpfR is a key regulator of c-di-GMP signaling in B. cenocepacia, affecting a broad spectrum of phenotypes under various environmental conditions. In addition, we identified Bcal2449 as a regulator of B. cenocepacia virulence in Galleria mellonella larvae. While Bcal2449 consists of protein domains that may catalyze both c-di-GMP synthesis and degradation, only the latter was essential for larvae killing, suggesting that a decreased c-di-GMP level mediated by the Bcal2449 protein is required for virulence of B. cenocepacia. Finally, our work suggests that some individual proteins play a role in regulating exclusively motility (CdpA), biofilm formation (Bcam1160) or both (Bcam2836).
author2 Singapore Centre for Environmental Life Sciences and Engineering
author_facet Singapore Centre for Environmental Life Sciences and Engineering
Richter, Anja M.
Fazli, Mustafa
Schmid, Nadine
Shilling, Rebecca
Suppiger, Angela
Givskov, Michael
Eberl, Leo
Tolker-Nielsen, Tim
format Article
author Richter, Anja M.
Fazli, Mustafa
Schmid, Nadine
Shilling, Rebecca
Suppiger, Angela
Givskov, Michael
Eberl, Leo
Tolker-Nielsen, Tim
author_sort Richter, Anja M.
title Key players and individualists of cyclic-di-gmp signaling in burkholderia cenocepacia
title_short Key players and individualists of cyclic-di-gmp signaling in burkholderia cenocepacia
title_full Key players and individualists of cyclic-di-gmp signaling in burkholderia cenocepacia
title_fullStr Key players and individualists of cyclic-di-gmp signaling in burkholderia cenocepacia
title_full_unstemmed Key players and individualists of cyclic-di-gmp signaling in burkholderia cenocepacia
title_sort key players and individualists of cyclic-di-gmp signaling in burkholderia cenocepacia
publishDate 2019
url https://hdl.handle.net/10356/90251
http://hdl.handle.net/10220/48464
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