Evidence map›Paper›PMID 36481738›Full record

ArticleNature communications2022

Discovery and structure of a widespread bacterial ABC transporter specific for ergothioneine.

Yifan Zhang, Giovanni Gonzalez-Gutierrez, Katherine A Legg, Brenna J C Walsh, Cristian M Pis Diez, Katherine A Edmonds, David P Giedroc

Open access · goldAbstract read
In one paragraph

Article in Nature communications, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
4.5field-weighted citation impact, top 4% 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

23 citing papers in PubMed, 45 citations in OpenAlex.

  1. Is Ergothioneine an Important Source of Plasma TrimethylamineAntioxidants (Basel, Switzerland) · 2026
    Article
  2. Article
  3. Article
  4. Disulphide bond-forming enzymes in clostridial species.Microbiology (Reading, England) · 2025
    Article
  5. Phenotypic and phylogenetic analyses ofJournal of medical microbiology · 2025
    Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Microbial metabolism of host-derived antioxidants.Current opinion in chemical biology · 2025
    Review
  12. Review
  13. Analysis of genetic requirements and nutrient availability forbioRxiv : the preprint server for biology · 2024
    Article
  14. Review
  15. Bacterial cell volume regulation and the importance of cyclic di-AMP.Microbiology and molecular biology reviews : MMBR · 2024
    Review
  16. Review
  17. Article
  18. Understanding mechanisms of antioxidant action in health and disease.Nature reviews. Molecular cell biology · 2024
    Review
  19. Review
  20. Review
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

7 authors at 3 institutions in 2 countries.

Yifan ZhangDepartment of Chemistry, Indiana University, Bloomington, IN, 47405-7102, USA.
Giovanni Gonzalez-GutierrezDepartment of Molecular and Cellular Biochemistry, Indiana University, Bloomington, IN, USA.ORCID 0000-0002-1044-943X
Katherine A LeggDepartment of Chemistry, Indiana University, Bloomington, IN, 47405-7102, USA.ORCID 0000-0002-3508-8765
Brenna J C WalshDepartment of Chemistry, Indiana University, Bloomington, IN, 47405-7102, USA.
Cristian M Pis DiezFundación Instituto Leloir, Av. Patricias Argentinas 435, Buenos Aires, C1405BWE, Argentina.ORCID 0000-0002-6309-0934
Katherine A Edmonds *Department of Chemistry, Indiana University, Bloomington, IN, 47405-7102, USA.ORCID 0000-0002-1282-9858
David P Giedroc *Department of Chemistry, Indiana University, Bloomington, IN, 47405-7102, USA. giedroc@indiana.edu.ORCID 0000-0002-2342-1620
Indiana University Bloomington · USFundación Instituto Leloir · ARJohns Hopkins University Applied Physics Laboratory · US

Funding

Transition Metal Homeostasis and Reactive Sulfur Species in Bacterial PathogensR35GM118157 · NIGMS · TRUSTEES OF INDIANA UNIVERSITY · PI DAVID P. GIEDROC · 2016 to 2026
$5.9M
Graduate Training Program in Quantitative and Chemical Biology at Indiana University BloomingtonT32GM131994 · NIGMS · TRUSTEES OF INDIANA UNIVERSITY · PI JARED C LEWIS · 2019 to 2026
$2.4M
NIGMS NIH HHS R35 GM118157NIGMS NIH HHS T32 GM131994
6 · The paper itself

Abstract

L-Ergothioneine (ET), the 2-thioimidazole derivative of trimethylhistidine, is biosynthesized by select fungi and bacteria, notably Mycobacterium tuberculosis, and functions as a scavenger of reactive oxygen species. The extent to which ET broadly functions in bacterial cells unable to synthesize it is unknown. Here we show that spd_1642-1643 in Streptococcus pneumoniae, a Gram-positive respiratory pathogen, encodes an ET uptake ATP-binding cassette (ABC) transporter, designated EgtU. The solute binding domain (SBD) of EgtU, EgtUC, binds ET with high affinity and exquisite specificity in a cleft between the two subdomains, with cation-π interactions engaging the betaine moiety and a network of water molecules that surround the thioimidazole ring. EgtU is highly conserved among known quaternary amine compound-specific transporters and widely distributed in Firmicutes, including the human pathogens Listeria monocytogenes, as BilEB, Enterococcus faecalis and Staphylococcus aureus. ET increases the chemical diversity of the low molecular weight thiol pool in Gram-positive human pathogens and may contribute to antioxidant defenses in the infected host.

Indexed as

ATP-Binding Cassette TransportersBacterial ProteinsErgothioneineStreptococcus pneumoniaeATP-Binding Cassette TransportersBacterial ProteinsErgothioneine

Identifiers

PMID36481738
PMCPMC9732360
OpenAlexW4310885964

What OpenQuestion holds

Textmetadata
LicenceCC BY
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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.