Temporal and evolutionary dynamics of two-component signaling pathways

Bacteria sense and respond to numerous environmental signals through two-component signaling pathways. Typically, a given stimulus will activate a sensor histidine kinase to autophosphorylate and then phosphotransfer to a cognate response regulator, which can mount an appropriate response. Although...

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Main Authors: Salazar, Michael Edward, Laub, Michael T
Other Authors: Massachusetts Institute of Technology. Department of Biology
Format: Article
Language:en_US
Published: Elsevier 2016
Online Access:http://hdl.handle.net/1721.1/105366
https://orcid.org/0000-0001-6534-104X
https://orcid.org/0000-0002-8288-7607
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author Salazar, Michael Edward
Laub, Michael T
author2 Massachusetts Institute of Technology. Department of Biology
author_facet Massachusetts Institute of Technology. Department of Biology
Salazar, Michael Edward
Laub, Michael T
author_sort Salazar, Michael Edward
collection MIT
description Bacteria sense and respond to numerous environmental signals through two-component signaling pathways. Typically, a given stimulus will activate a sensor histidine kinase to autophosphorylate and then phosphotransfer to a cognate response regulator, which can mount an appropriate response. Although these signaling pathways often appear to be simple switches, they can also orchestrate surprisingly sophisticated and complex responses. These temporal dynamics arise from several key regulatory features, including the bifunctionality of histidine kinases as well as positive and negative feedback loops. Two-component signaling pathways are also dynamic on evolutionary time-scales, expanding dramatically in many species through gene duplication and divergence. Here, we review recent work probing the temporal and evolutionary dynamics of two-component signaling systems.
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spelling mit-1721.1/1053662022-10-02T08:29:51Z Temporal and evolutionary dynamics of two-component signaling pathways Salazar, Michael Edward Laub, Michael T Massachusetts Institute of Technology. Department of Biology Salazar, Michael Edward Laub, Michael T Bacteria sense and respond to numerous environmental signals through two-component signaling pathways. Typically, a given stimulus will activate a sensor histidine kinase to autophosphorylate and then phosphotransfer to a cognate response regulator, which can mount an appropriate response. Although these signaling pathways often appear to be simple switches, they can also orchestrate surprisingly sophisticated and complex responses. These temporal dynamics arise from several key regulatory features, including the bifunctionality of histidine kinases as well as positive and negative feedback loops. Two-component signaling pathways are also dynamic on evolutionary time-scales, expanding dramatically in many species through gene duplication and divergence. Here, we review recent work probing the temporal and evolutionary dynamics of two-component signaling systems. National Science Foundation (U.S.) (Grant MCB-1408243) National Institutes of Health (U.S.) (Pre-Doctoral Training Grant T32GM007287) 2016-11-18T19:20:52Z 2016-11-18T19:20:52Z 2015-01 Article http://purl.org/eprint/type/JournalArticle 1369-5274 1369-5274 http://hdl.handle.net/1721.1/105366 Salazar, Michael E, and Michael T Laub. “Temporal and Evolutionary Dynamics of Two-Component Signaling Pathways.” Current Opinion in Microbiology 24 (2015): 7–14. https://orcid.org/0000-0001-6534-104X https://orcid.org/0000-0002-8288-7607 en_US http://dx.doi.org/10.1016/j.mib.2014.12.003 Current Opinion in Microbiology Creative Commons Attribution-NonCommercial-NoDerivs License http://creativecommons.org/licenses/by-nc-nd/4.0/ application/pdf Elsevier PMC
spellingShingle Salazar, Michael Edward
Laub, Michael T
Temporal and evolutionary dynamics of two-component signaling pathways
title Temporal and evolutionary dynamics of two-component signaling pathways
title_full Temporal and evolutionary dynamics of two-component signaling pathways
title_fullStr Temporal and evolutionary dynamics of two-component signaling pathways
title_full_unstemmed Temporal and evolutionary dynamics of two-component signaling pathways
title_short Temporal and evolutionary dynamics of two-component signaling pathways
title_sort temporal and evolutionary dynamics of two component signaling pathways
url http://hdl.handle.net/1721.1/105366
https://orcid.org/0000-0001-6534-104X
https://orcid.org/0000-0002-8288-7607
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