Evidence map›Paper›PMID 34725337›Full record

ArticleNature communications2021

A Slam-dependent hemophore contributes to heme acquisition in the bacterial pathogen Acinetobacter baumannii.

Thomas J Bateman, Megha Shah, Timothy Pham Ho, Hyejin Esther Shin, Chuxi Pan, Greg Harris, Jamie E Fegan, Epshita A Islam, Sang Kyun Ahn, Yogesh Hooda and 3 more

Abstract read
In one paragraph

Article in Nature communications, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed
–field-weighted citation impact
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

26 citing papers in PubMed.

  1. From screening to treatment:Microbiology spectrum · 2026
    Article
  2. Polish journal of microbiology · 2026
    Article
  3. Article
  4. Review
  5. Review
  6. Article
  7. Article
  8. Article
  9. Review
  10. A decade of genomic and phenotypic adaptation of carbapenem-resistantFrontiers in cellular and infection microbiology · 2025
    Article
  11. The intricacies ofFrontiers in microbiology · 2025
    Review
  12. Article
  13. Review
  14. Review
  15. Article
  16. Article
  17. Article
  18. Review
  19. Genomics ofMicrobial genomics · 2023
    Article
  20. Article
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

13 authors.

Thomas J BatemanDepartment of Biochemistry, University of Toronto, Toronto, ON, Canada.
Megha ShahDepartment of Biochemistry, University of Toronto, Toronto, ON, Canada.
Timothy Pham HoDepartment of Biochemistry, University of Toronto, Toronto, ON, Canada.
Hyejin Esther ShinDepartment of Biochemistry, University of Toronto, Toronto, ON, Canada.
Chuxi PanDepartment of Biochemistry, University of Toronto, Toronto, ON, Canada.ORCID 0000-0002-0065-0535
Greg HarrisNational Research Council Canada, Human Health Therapeutics (HHT) Research Center, Ottawa, ON, Canada.
Jamie E FeganDepartment of Molecular Genetics, University of Toronto, Toronto, ON, Canada.
Epshita A IslamDepartment of Biochemistry, University of Toronto, Toronto, ON, Canada.
Sang Kyun AhnDepartment of Molecular Genetics, University of Toronto, Toronto, ON, Canada.
Yogesh HoodaDepartment of Biochemistry, University of Toronto, Toronto, ON, Canada.
Scott D Gray-OwenDepartment of Molecular Genetics, University of Toronto, Toronto, ON, Canada.ORCID 0000-0002-1477-3616
Wangxue ChenNational Research Council Canada, Human Health Therapeutics (HHT) Research Center, Ottawa, ON, Canada.
Trevor F MoraesDepartment of Biochemistry, University of Toronto, Toronto, ON, Canada. trevor.moraes@utoronto.ca.ORCID 0000-0001-9883-6145

Funding

CIHR PJT-148795
6 · The paper itself

Abstract

Nutrient acquisition systems are often crucial for pathogen growth and survival during infection, and represent attractive therapeutic targets. Here, we study the protein machinery required for heme uptake in the opportunistic pathogen Acinetobacter baumannii. We show that the hemO locus, which includes a gene encoding the heme-degrading enzyme, is required for high-affinity heme acquisition from hemoglobin and serum albumin. The hemO locus includes a gene coding for a heme scavenger (HphA), which is secreted by a Slam protein. Furthermore, heme uptake is dependent on a TonB-dependent receptor (HphR), which is important for survival and/or dissemination into the vasculature in a mouse model of pulmonary infection. Our results indicate that A. baumannii uses a two-component receptor system for the acquisition of heme from host heme reservoirs.

Indexed as

Acinetobacter baumanniiAcinetobacter InfectionsAnimalsBacterial ProteinsBiological TransportFemaleHemeHumansMiceMice, Inbred BALB CMultigene FamilyBacterial ProteinsHeme

Identifiers

PMID34725337
PMCPMC8560813

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.