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Title: A direct-sensing galactose chemoreceptor recently evolved in invasive strains of Campylobacter jejuni

Journal Article · · Nature Communications
DOI:https://doi.org/10.1038/ncomms13206· OSTI ID:1330560

A rare chemotaxis receptor, Tlp11, has been previously identified in invasive strains of Campylobacter jejuni, the most prevalent cause of bacterial gastroenteritis worldwide. Here we use glycan and small-molecule arrays, as well as surface plasmon resonance, to show that Tlp11 specifically interacts with galactose. Tlp11 is required for the chemotactic response of C. jejuni to galactose, as shown using wild type, allelic inactivation and addition mutants. The inactivated mutant displays reduced virulence in vivo, in a model of chicken colonization. The Tlp11 sensory domain represents the first known sugar-binding dCache_1 domain, which is the most abundant family of extracellular sensors in bacteria. The Tlp11 signalling domain interacts with the chemotaxis scaffolding proteins CheV and CheW, and comparative genomic analysis indicates a likely recent evolutionary origin for Tlp11. Lastly, we propose to rename Tlp11 as CcrG, Campylobacter ChemoReceptor for Galactose.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
AC05-00OR22725
OSTI ID:
1330560
Journal Information:
Nature Communications, Vol. 7; ISSN 2041-1723
Publisher:
Nature Publishing GroupCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 40 works
Citation information provided by
Web of Science

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Cited By (12)

Glycointeractions in bacterial pathogenesis journal April 2018
Chemotaxis of Escherichia coli to major hormones and polyamines present in human gut journal July 2018
Assigning a role for chemosensory signal transduction in Campylobacter jejuni biofilms using a combined omics approach journal December 2019
The effect of bacterial chemotaxis on host infection and pathogenicity journal October 2017
Parallel quorum-sensing system in Vibrio cholerae prevents signal interference inside the host journal February 2020
Induced root-secreted d-galactose functions as a chemoattractant and enhances the biofilm formation of Bacillus velezensis SQR9 in an McpA-dependent manner journal December 2019
A peculiar case of Campylobacter jejuni attenuated aspartate chemosensory mutant, able to cause pathology and inflammation in avian and murine model animals journal August 2018
The novel regulators CheP and CheQ control the core chemotaxis operon cheVAW in Campylobacter jejuni journal November 2018
Campylobacter jejuni: collective components promoting a successful enteric lifestyle journal June 2018
Phylogenetic and Protein Sequence Analysis of Bacterial Chemoreceptors book January 2018
Diversity of transducer-like proteins (Tlps) in Campylobacter journal March 2019
Role of the Campylobacter jejuni cheVAWY chemotaxis genes in chemotactic motility and biofilm formation journal November 2020