Evidence map›Paper›PMID 21764915›Full record

ArticleJournal of bacteriology2011

Membrane proteases and aminoglycoside antibiotic resistance.

Aaron Hinz, Samuel Lee, Kyle Jacoby, Colin Manoil

Open access · greenAbstract read
In one paragraph

Article in Journal of bacteriology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 58 papers.

0numbers the graph read from it
0cells of the map it votes in
58citing papers in PubMed
2.6field-weighted citation impact, top 10% 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

58 citing papers in PubMed, 102 citations in OpenAlex.

  1. Article
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  7. Phase-Specific Antibiotic Resistance Mechanisms in anbioRxiv : the preprint server for biology · 2025
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  18. The Wsp system 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

4 authors at 2 institutions in 2 countries.

Aaron HinzDepartment of Genome Sciences, University of Washington, Campus Box 355065, 1705 NE Pacific St., Seattle, WA 98195, USA.
Samuel Lee
Kyle Jacoby
Colin Manoil
University of Ottawa · CAUniversity of Washington · US

Funding

Undermining aminoglycoside resistance in Pseudomonas aeruginosaR21AI078495 · NIAID · UNIVERSITY OF WASHINGTON · PI MANOIL, COLIN · 2008 to 2009
$417k
NIAID NIH HHS R21 AI078495NIAID NIH HHS R21AI078495
6 · The paper itself

Abstract

We present genetic studies that help define the functional network underlying intrinsic aminoglycoside resistance in Pseudomonas aeruginosa. Our analysis shows that proteolysis, particularly that controlled by the membrane protease FtsH, is a major determinant of resistance. First, we examined the consequences of inactivating genes controlled by AmgRS, a two-component regulator required for intrinsic tobramycin resistance. Three of the gene products account for resistance: a modulator of FtsH protease (YccA), a membrane protease (HtpX), and a membrane protein of unknown function (PA5528). Second, we screened mutations inactivating 66 predicted proteases and related functions. Insertions inactivating two FtsH protease accessory factors (HflK and HflC) and a cytoplasmic protease (HslUV) increased tobramycin sensitivity. Finally, we generated an ftsH deletion mutation. The mutation dramatically increased aminoglycoside sensitivity. Many of the functions whose inactivation increased sensitivity appeared to act independently, since multiple mutations led to additive or synergistic effects. Up to 500-fold increases in tobramycin sensitivity were observed. Most of the mutations also were highly pleiotropic, increasing sensitivity to a membrane protein hybrid, several classes of antibiotics, alkaline pH, NaCl, and other compounds. We propose that the network of proteases provides robust protection from aminoglycosides and other substances through the elimination of membrane-disruptive mistranslation products.

Indexed as

Drug Resistance, BacterialAminoglycosidesAnti-Bacterial AgentsCell MembraneGene Knockout TechniquesMicrobial Sensitivity TestsMutagenesis, InsertionalPeptide HydrolasesPseudomonas aeruginosaAminoglycosidesAnti-Bacterial AgentsPeptide Hydrolases

Identifiers

PMID21764915
PMCPMC3165699
OpenAlexW2167436485

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.