Evidence map›Paper›PMID 11553564›Full record

ArticleInfection and immunity2001

Ferrochelatase is present in Brucella abortus and is critical for its intracellular survival and virulence.

M Almirón, M Martínez, N Sanjuan, R A Ugalde

Abstract read
In one paragraph

Article in Infection and immunity, 2001. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed
3.7field-weighted citation impact, top 7% 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

24 citing papers in PubMed, 53 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Antibiogram Screening and Detection of Virulence-Associated Genes inInternational journal of environmental research and public health · 2022
    Article
  5. A comprehensive review of small regulatory RNAs inFrontiers in veterinary science · 2022
    Review
  6. Article
  7. Review
  8. Development and trial of vaccines againstJournal of veterinary science · 2017
    Review
  9. [Drug resistance and protoporphyrin ferrochelatase ofZhejiang da xue xue bao. Yi xue ban = Journal of Zhejiang University. Medical sciences · 2017
    Article
  10. Frontiers in microbiology · 2017
    Review
  11. Horizontally Acquired Biosynthesis Genes BoostFrontiers in cellular and infection microbiology · 2017
    Article
  12. Transition Metals and Virulence in Bacteria.Annual review of genetics · 2016
    Review
  13. Heme Synthesis and Acquisition in Bacterial Pathogens.Journal of molecular biology · 2016
    Review
  14. Article
  15. Progress inFrontiers in biology · 2013
    Article
  16. Iron homeostasis in Brucella abortus: the role of bacterioferritin.Journal of microbiology (Seoul, Korea) · 2010
    Article
  17. Article
  18. Article
  19. Review
  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

4 authors at 3 institutions in 1 country.

M AlmirónInstituto de Investigaciones Biotecnológicas, Consejo Nacional de Investigaciones Científicas y Técnicas, Universidad Nacional de General San Martín, Buenos Aires, Argentina.
M Martínez
N Sanjuan
R A Ugalde
Consejo Nacional de Investigaciones Científicas y Técnicas · ARInstituto Tecnológico de Chascomús · ARUniversity of Buenos Aires · AR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Brucella spp. are pathogenic bacteria that cause brucellosis, an animal disease which can also affect humans. Although understanding the pathogenesis is important for the health of animals and humans, little is known about virulence factors associated with it. In order for chronic disease to be established, Brucella spp. have developed the ability to survive inside phagocytes by evading cell defenses. It hides inside vacuoles, where it then replicates, indicating that it has an active metabolism. The purpose of this work was to obtain better insight into the intracellular metabolism of Brucella abortus. During a B. abortus genomic sequencing project, a clone coding a putative gene homologous to hemH was identified and sequenced. The amino acid sequence revealed high homology to members of the ferrochelatase family. A knockout mutant displayed auxotrophy for hemin, defective intracellular survival inside J774 and HeLa cells, and lack of virulence in BALB/c mice. This phenotype was overcome by complementing the mutant strain with a plasmid harboring wild-type hemH. These data demonstrate that B. abortus synthesizes its own heme and also has the ability to use an external source of heme; however, inside cells, there is not enough available heme to support its intracellular metabolism. It is concluded that ferrochelatase is essential for the multiplication and intracellular survival of B. abortus and thus for the establishment of chronic disease as well.

Indexed as

AnimalsBrucella abortusFerrochelataseHeLa CellsHeminHumansIntracellular FluidMacrophagesMiceMice, Inbred BALB CMutagenesisVirulenceFerrochelataseHemin

Identifiers

PMID11553564
PMCPMC98755
OpenAlexW2159467852

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.