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Bacterial cyclic diguanylate signaling networks sense temperature

Many bacteria use the second messenger cyclic diguanylate (c-di-GMP) to control motility, biofilm production and virulence. Here, we identify a thermosensory diguanylate cyclase (TdcA) that modulates temperature-dependent motility, biofilm development and virulence in the opportunistic pathogen Pseu...

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Detalles Bibliográficos
Autores principales: Almblad, Henrik, Randall, Trevor E., Liu, Fanny, Leblanc, Katherine, Groves, Ryan A., Kittichotirat, Weerayuth, Winsor, Geoffrey L., Fournier, Nicolas, Au, Emily, Groizeleau, Julie, Rich, Jacquelyn D., Lou, Yuefei, Granton, Elise, Jennings, Laura K., Singletary, Larissa A., Winstone, Tara M. L., Good, Nathan M., Bumgarner, Roger E., Hynes, Michael F., Singh, Manu, Stietz, Maria Silvina, Brinkman, Fiona S. L., Kumar, Ayush, Brassinga, Ann Karen Cornelia, Parsek, Matthew R., Tseng, Boo Shan, Lewis, Ian A., Yipp, Bryan G., MacCallum, Justin L., Harrison, Joe Jonathan
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8012707/
https://www.ncbi.nlm.nih.gov/pubmed/33790266
http://dx.doi.org/10.1038/s41467-021-22176-2
Descripción
Sumario:Many bacteria use the second messenger cyclic diguanylate (c-di-GMP) to control motility, biofilm production and virulence. Here, we identify a thermosensory diguanylate cyclase (TdcA) that modulates temperature-dependent motility, biofilm development and virulence in the opportunistic pathogen Pseudomonas aeruginosa. TdcA synthesizes c-di-GMP with catalytic rates that increase more than a hundred-fold over a ten-degree Celsius change. Analyses using protein chimeras indicate that heat-sensing is mediated by a thermosensitive Per-Arnt-SIM (PAS) domain. TdcA homologs are widespread in sequence databases, and a distantly related, heterologously expressed homolog from the Betaproteobacteria order Gallionellales also displayed thermosensitive diguanylate cyclase activity. We propose, therefore, that thermotransduction is a conserved function of c-di-GMP signaling networks, and that thermosensitive catalysis of a second messenger constitutes a mechanism for thermal sensing in bacteria.