Evidence map›Paper›PMID 27589208›Full record

ArticleMolecular microbiology2016

The role of two branched-chain amino acid transporters in Staphylococcus aureus growth, membrane fatty acid composition and virulence.

Julienne C Kaiser, Suranjana Sen, Anshul Sinha, Brian J Wilkinson, David E Heinrichs

Open access · bronzeAbstract read
In one paragraph

Article in Molecular microbiology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 41 papers.

0numbers the graph read from it
0cells of the map it votes in
41citing papers in PubMed
2.7field-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

41 citing papers in PubMed, 60 citations in OpenAlex.

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  2. InJournal of bacteriology · 2026
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  6. InbioRxiv : the preprint server for biology · 2026
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  16. DecipheringmSystems · 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

5 authors at 2 institutions in 2 countries.

Julienne C KaiserDepartment of Microbiology and Immunology, University of Western Ontario, London, ON, Canada.
Suranjana SenSchool of Biological Sciences, Illinois State University, Normal, IL, USA.
Anshul SinhaDepartment of Microbiology and Immunology, University of Western Ontario, London, ON, Canada.
Brian J WilkinsonSchool of Biological Sciences, Illinois State University, Normal, IL, USA.
David E HeinrichsDepartment of Microbiology and Immunology, University of Western Ontario, London, ON, Canada.
Western University · CAIllinois State University · US

Funding

Branched-chain fatty acids and membrane function in Listeria monocytogenesR15AI099977 · NIAID · ILLINOIS STATE UNIVERSITY · PI WILKINSON, BRIAN JAMES · 2012 to 2012
$432k
CIHRNIAID NIH HHS R15 AI099977
6 · The paper itself

Abstract

The branched-chain amino acids (BCAAs) are vital to both growth and virulence of the human pathogen Staphylococcus aureus. In addition to supporting protein synthesis, the BCAAs serve as precursors for branched-chain fatty acids (BCFAs), which are predominant membrane fatty acids, and, in association with the global regulatory protein CodY, the BCAAs are key co-regulators of virulence factors. Despite these critical functions, S. aureus represses Leu and Val synthesis, instead preferring to acquire them from the extracellular milieu. We previously identified BrnQ1 as a BCAA transporter, yet a brnQ1 mutant remained capable of BCAA acquisition. Here, we describe BcaP as an additional BCAA transporter, and determine that it plays a secondary role to BrnQ1 during S. aureus growth in a chemically defined medium. Furthermore, membrane fatty acid composition analysis revealed that BrnQ1, and not BcaP, is required for transporting Leu and Val to be used for iso-BCFA synthesis. Despite a predominant role for BrnQ1 in vitro, both BrnQ1 and BcaP are required for S. aureus fitness in vivo in a hematogenous spread infection model and a nasal colonisation model. These data demonstrate the importance of BrnQ1 and BcaP for growth, environmental adaptation and virulence of S. aureus.

Indexed as

Amino Acids, Branched-ChainBacterial ProteinsBiological TransportFatty AcidsHumansMembrane Transport ProteinsStaphylococcal InfectionsStaphylococcus aureusTranscription FactorsVirulenceAmino Acids, Branched-ChainBacterial ProteinsFatty AcidsMembrane Transport ProteinsTranscription Factors

Identifiers

PMID27589208
PMCPMC6225994
OpenAlexW2517554512

What OpenQuestion holds

Textmetadata
LicenceTDM
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.