Evidence map›Paper›PMID 19687245›Full record

ArticleAntimicrobial agents and chemotherapy2009

Two distinct major facilitator superfamily drug efflux pumps mediate chloramphenicol resistance in Streptomyces coelicolor.

James J Vecchione, Blair Alexander, Jason K Sello

Open access · greenAbstract read
In one paragraph

Article in Antimicrobial agents and chemotherapy, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
0.7field-weighted citation impact, top 34% 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

21 citing papers in PubMed, 50 citations in OpenAlex.

  1. Article
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  3. Identification of the Major Facilitator Superfamily Efflux Pump KpsrMFS inInternational journal of molecular sciences · 2024
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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

3 authors at 2 institutions in 1 country.

James J VecchioneDepartment of Chemistry, Brown University, 324 Brook Street, Providence, RI 02912, USA.
Blair Alexander
Jason K Sello
Brown University · USMorehouse College · US

Funding

Short-Term Training Program to Increase Diversity in Health-Related ResearchR25HL088992 · NHLBI · BROWN UNIVERSITY · PI ABID, RUHUL, DIAZ, JOSEPH A · 2007 to 2024
$1.9M
NHLBI NIH HHS R25 HL08892NHLBI NIH HHS R25 HL088992
6 · The paper itself

Abstract

Chloramphenicol, florfenicol, and thiamphenicol are used as antibacterial drugs in clinical and veterinary medicine. Two efflux pumps of the major facilitator superfamily encoded by the cmlR1 and cmlR2 genes mediate resistance to these antibiotics in Streptomyces coelicolor, a close relative of Mycobacterium tuberculosis. The transcription of both genes was observed by reverse transcription-PCR. Disruption of cmlR1 decreased the chloramphenicol MIC 1.6-fold, while disruption of cmlR2 lowered the MIC 16-fold. The chloramphenicol MIC of wild-type S. coelicolor decreased fourfold and eightfold in the presence of reserpine and Phe-Arg-beta-naphthylamide, respectively. These compounds are known to potentiate the activity of some antibacterial drugs via efflux pump inhibition. While reserpine is known to potentiate drug activity against gram-positive bacteria, this is the first time that Phe-Arg-beta-naphthylamide has been shown to potentiate drug activity against a gram-positive bacterium.

Indexed as

Chloramphenicol ResistanceBacterial ProteinsDipeptidesReserpineStreptomyces coelicolorBacterial ProteinsDipeptidesphenylalanylarginine-naphthylamideReserpine

Identifiers

PMID19687245
PMCPMC2772354
OpenAlexW2152461572

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.