Structure of a double CACHE chemoreceptor ligand-binding domain from Pseudomonas syringae provides insights into the basis of proline recognition.
Sign Up to like & getrecommendations! Published in 2021 at "Biochemical and biophysical research communications"
DOI: 10.1016/j.bbrc.2021.02.090
Abstract: Chemotaxis is the process of sensing chemical gradients and navigating towards favourable conditions. Bacterial chemotaxis is mediated by arrays of trans-membrane chemoreceptor proteins. The most common class of chemoreceptors have periplasmic ligand-binding domains (LBDs) that… read more here.
Keywords: ligand binding; proline; pseudomonas syringae; chemoreceptor ... See more keywords
Nanomolar-level selective dual channel sensing of Cu2+ and CN- from an aqueous medium by an opto-electronic chemoreceptor.
Sign Up to like & getrecommendations! Published in 2018 at "Dalton transactions"
DOI: 10.1039/c7dt03802j
Abstract: A dual-channel chromogenic and fluorogenic fused-aromatic-system-based chemoreceptor (2-(benzo[d]thiazol-2-yl)-1-((pyren-8-yl)methylene)hydrazine) (TyM) was designed for ditopic sensitivity towards heavy and transition metal ions (HTMs), such as Cu2+, in an aqueous medium and lethal CN- in a semi-aqueous medium.… read more here.
Keywords: cu2; dual channel; tym; chemoreceptor ... See more keywords
Structural signatures of Escherichia coli chemoreceptor signaling states revealed by cellular crosslinking
Sign Up to like & getrecommendations! Published in 2022 at "Proceedings of the National Academy of Sciences of the United States of America"
DOI: 10.1073/pnas.2204161119
Abstract: Significance The conformational changes that accompany signaling events in transmembrane chemoreceptors are difficult to follow with structural methods that cannot replicate the native cellular environment. We developed in vivo cysteine crosslinking reporters of the Escherichia… read more here.
Keywords: coli chemoreceptor; escherichia coli; chemoreceptor; signatures escherichia ... See more keywords
The chromosome-scale assembly of the Canary Islands endemic spider Dysdera silvatica (Arachnida, Araneae) sheds light on the origin and genome structure of chemoreceptor gene families in chelicerates.
Sign Up to like & getrecommendations! Published in 2021 at "Molecular ecology resources"
DOI: 10.1111/1755-0998.13471
Abstract: We present the chromosome-level genome assembly of Dysdera silvatica Schmidt, 1981, a nocturnal ground-dwelling spider endemic from the Canary Islands. The genus Dysdera has undergone a remarkable diversification in this archipelago mostly associated with shifts… read more here.
Keywords: gene families; canary islands; assembly; dysdera silvatica ... See more keywords
The Aer2 chemoreceptor from Vibrio vulnificus is a tri‐PAS‐heme oxygen sensor
Sign Up to like & getrecommendations! Published in 2022 at "Molecular Microbiology"
DOI: 10.1111/mmi.15007
Abstract: The marine pathogen Vibrio vulnificus senses and responds to environmental stimuli via two chemosensory systems and 42–53 chemoreceptors. Here, we present an analysis of the V. vulnificus Aer2 chemoreceptor, VvAer2, which is the first V.… read more here.
Keywords: pas; aer2 chemoreceptor; chemoreceptor; vibrio vulnificus ... See more keywords
Noncanonical Sensing Mechanisms for Bacillus subtilis Chemoreceptors
Sign Up to like & getrecommendations! Published in 2022 at "Journal of Bacteriology"
DOI: 10.1128/jb.00027-22
Abstract: Bodhankar et al. reported a noncanonical sensing mechanism that involves signal interaction with the McpA chemoreceptor signaling domain resulting in a chemorepellence response of Bacillus subtilis. The identified repellent binding site is analogous to that… read more here.
Keywords: noncanonical sensing; sensing mechanisms; bacillus subtilis; chemoreceptor ... See more keywords
In Situ Conformational Changes of the Escherichia coli Serine Chemoreceptor in Different Signaling States
Sign Up to like & getrecommendations! Published in 2019 at "mBio"
DOI: 10.1128/mbio.00973-19
Abstract: In Escherichia coli, membrane-bound chemoreceptors, the histidine kinase CheA, and coupling protein CheW form highly ordered chemosensory arrays. In core signaling complexes, chemoreceptor trimers of dimers undergo conformational changes, induced by ligand binding and sensory… read more here.
Keywords: kinase; chemoreceptor; coli serine; escherichia coli ... See more keywords
The dCache Domain of the Chemoreceptor Tlp1 in Campylobacter jejuni Binds and Triggers Chemotaxis toward Formate
Sign Up to like & getrecommendations! Published in 2023 at "mBio"
DOI: 10.1128/mbio.03564-22
Abstract: Chemotaxis is important for Campylobacter jejuni to colonize favorable niches in the gastrointestinal tract of its host. However, there is still a lack of knowledge about the ligand molecules for C. jejuni chemoreceptors. ABSTRACT Chemotaxis… read more here.
Keywords: dcache; formate; chemoreceptor; jejuni ... See more keywords
Identification of Cbp1, a c-di-GMP Binding Chemoreceptor in Azorhizobium caulinodans ORS571 Involved in Chemotaxis and Nodulation of the Host Plant
Sign Up to like & getrecommendations! Published in 2019 at "Frontiers in Microbiology"
DOI: 10.3389/fmicb.2019.00638
Abstract: Cbp1, a chemoreceptor containing a PilZ domain was identified in Azorhizobium caulinodans ORS571, a nitrogen-fixing free-living soil bacterium that induces nodule formation in both the roots and stems of the host legume Sesbania rostrata. Chemoreceptors… read more here.
Keywords: gmp; nodulation; caulinodans ors571; cbp1 ... See more keywords
Mechanism of Signalling and Adaptation through the Rhodobacter sphaeroides Cytoplasmic Chemoreceptor Cluster
Sign Up to like & getrecommendations! Published in 2019 at "International Journal of Molecular Sciences"
DOI: 10.3390/ijms20205095
Abstract: Rhodobacter sphaeroides has two chemotaxis clusters, an Escherichia coli-like cluster with membrane-spanning chemoreceptors and a less-understood cytoplasmic cluster. The cytoplasmic CheA is split into CheA4, a kinase, and CheA3, a His-domain phosphorylated by CheA4 and… read more here.
Keywords: cytoplasmic chemoreceptor; cluster; rhodobacter sphaeroides; adaptation ... See more keywords