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Journal Articles Biomolecules Year : 2022

Defining Two Chemosensory Arrays in Shewanella oneidensis

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Abstract

Shewanella oneidensis has 2 functional chemosensory systems named Che1 and Che3, and 27 chemoreceptors. Che3 is dedicated to chemotaxis while Che1 could be involved in RpoS posttranslational regulation. In this study, we have shown that two chemoreceptors Aer2so and McpAso, genetically related to the Che1 system, form distinct core-signaling units and signal to Che1 and Che3, respectively. Moreover, we observed that Aer2so is a cytoplasmic dynamic chemoreceptor that, when in complex with CheA1 and CheW1, localizes at the two poles and the centre of the cells. Altogether, the results obtained indicate that Che1 and Che3 systems are interconnected by these two chemoreceptors allowing a global response for bacterial survival.
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Dates and versions

hal-03932516 , version 1 (10-01-2023)

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Emma M Fortier, Sophie Bouillet, Pascale Infossi, Amine Ali Chaouche, Leon Espinosa, et al.. Defining Two Chemosensory Arrays in Shewanella oneidensis. Biomolecules, 2022, 13 (1), pp.21. ⟨10.3390/biom13010021⟩. ⟨hal-03932516⟩

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CNRS UNIV-AMU
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