Evidence map›Paper›PMID 25182492›Full record

ArticleJournal of bacteriology2014

Chemotaxis of Escherichia coli to norepinephrine (NE) requires conversion of NE to 3,4-dihydroxymandelic acid.

Sasikiran Pasupuleti, Nitesh Sule, William B Cohn, Duncan S MacKenzie, Arul Jayaraman, Michael D Manson

Open access · bronzeAbstract read
In one paragraph

Article in Journal of bacteriology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 36 papers.

0numbers the graph read from it
0cells of the map it votes in
36citing papers in PubMed
4.4field-weighted citation impact, top 5% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

36 citing papers in PubMed, 70 citations in OpenAlex.

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  14. Eukaryotic catecholamine hormones influence the chemotactic control ofProceedings of the National Academy of Sciences of the United States of America · 2022
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors at 1 institution in 1 country.

Sasikiran PasupuletiDepartment of Chemical Engineering, Texas A&M University, College Station, Texas, USA.
Nitesh SuleDepartment of Chemical Engineering, Texas A&M University, College Station, Texas, USA.
William B CohnDepartment of Biology, Texas A&M University, College Station, Texas, USA.
Duncan S MacKenzieDepartment of Biology, Texas A&M University, College Station, Texas, USA.
Arul JayaramanDepartment of Chemical Engineering, Texas A&M University, College Station, Texas, USA arulj@tamu.edu mike@bio.tamu.edu.
Michael D MansonDepartment of Biology, Texas A&M University, College Station, Texas, USA arulj@tamu.edu mike@bio.tamu.edu.
Texas A&M University · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Norepinephrine (NE), the primary neurotransmitter of the sympathetic nervous system, has been reported to be a chemoattractant for enterohemorrhagic Escherichia coli (EHEC). Here we show that nonpathogenic E. coli K-12 grown in the presence of 2 μM NE is also attracted to NE. Growth with NE induces transcription of genes encoding the tyramine oxidase, TynA, and the aromatic aldehyde dehydrogenase, FeaB, whose respective activities can, in principle, convert NE to 3,4-dihydroxymandelic acid (DHMA). Our results indicate that the apparent attractant response to NE is in fact chemotaxis to DHMA, which was found to be a strong attractant for E. coli. Only strains of E. coli K-12 that produce TynA and FeaB exhibited an attractant response to NE. We demonstrate that DHMA is sensed by the serine chemoreceptor Tsr and that the chemotaxis response requires an intact serine-binding site. The threshold concentration for detection is ≤5 nM DHMA, and the response is inhibited at DHMA concentrations above 50 μM. Cells producing a heterodimeric Tsr receptor containing only one functional serine-binding site still respond like the wild type to low concentrations of DHMA, but their response persists at higher concentrations. We propose that chemotaxis to DHMA generated from NE by bacteria that have already colonized the intestinal epithelium may recruit E. coli and other enteric bacteria that possess a Tsr-like receptor to preferred sites of infection.

Indexed as

ChemotaxisAldehyde OxidoreductasesBacterial ProteinsEscherichia coli K12Escherichia coli ProteinsGene Expression ProfilingMandelic AcidsMembrane ProteinsMethyl-Accepting Chemotaxis ProteinsMonoamine OxidaseNorepinephrineTranscription, Genetic3,4-dihydroxymandelic acidAldehyde OxidoreductasesBacterial ProteinsEscherichia coli ProteinsMandelic AcidsMembrane ProteinsMethyl-Accepting Chemotaxis ProteinsMonoamine OxidaseNorepinephrinephenylacetaldehyde dehydrogenasetsr protein, E coliTynA protein, E coli

Identifiers

PMID25182492
PMCPMC4248876
OpenAlexW2167756183

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.