Evidence map›Paper›PMID 11035722›Full record

ArticleInfection and immunity2000

Bacteroides fragilis NCTC9343 produces at least three distinct capsular polysaccharides: cloning, characterization, and reassignment of polysaccharide B and C biosynthesis loci.

M J Coyne, W Kalka-Moll, A O Tzianabos, D L Kasper, L E Comstock

Open access · greenAbstract read
In one paragraph

Article in Infection and immunity, 2000. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed
1.7field-weighted citation impact, top 16% 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

28 citing papers in PubMed, 57 citations in OpenAlex.

  1. Review
  2. Article
  3. Review
  4. Review
  5. In Silico Study of Cell Surface Structures ofInternational journal of molecular sciences · 2022
    Article
  6. Phosphonate production by marine microbes: Exploring new sources and potential function.Proceedings of the National Academy of Sciences of the United States of America · 2022
    Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Efficient electrotransformation of Bacteroides fragilis.Applied and environmental microbiology · 2010
    Article
  13. Article
  14. Article
  15. Article
  16. Review
  17. Article
  18. Bacteroides: the good, the bad, and the nitty-gritty.Clinical microbiology reviews · 2007
    Review
  19. Phase-variable expression of a family of glycoproteins imparts a dynamic surface to a symbiont in its human intestinal ecosystem.Proceedings of the National Academy of Sciences of the United States of America · 2007
    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

5 authors at 1 institution in 1 country.

M J CoyneChanning Laboratory, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts 02115, USA.
W Kalka-Moll
A O Tzianabos
D L Kasper
L E Comstock
Brigham and Women's Hospital · US

Funding

Regulation of the multiple polysaccharides of Bacteroides fragilisR01AI044193 · NIAID · BRIGHAM AND WOMEN'S HOSPITAL · PI COMSTOCK, LAURIE E · 1999 to 2010
$2.7M
PATHOGENIC MECHANISMS OF ANAEROBES IN SEPSISR01AI039576 · NIAID · BRIGHAM AND WOMEN'S HOSPITAL · PI KASPER, DENNIS L. · 1997 to 2007
$2.4M
Regulation of the multiple polysaccharides of Bacteroides fragilisR56AI044193 · NIAID · BRIGHAM AND WOMEN'S HOSPITAL · PI COMSTOCK, LAURIE E · 2008 to 2008
$344k
PATHOGENIC MECHANISMS OF ANAEROBES IN SEPSISR21AI039576 · NIAID · BRIGHAM AND WOMEN'S HOSPITAL · PI KASPER, DENNIS L. · 1996 to 1996
–
NIAID NIH HHS AI39576NIAID NIH HHS AI44193NIAID NIH HHS R01 AI039576NIAID NIH HHS R01 AI044193NIAID NIH HHS R56 AI044193
6 · The paper itself

Abstract

Bacteroides fragilis produces a capsular polysaccharide complex (CPC) that is directly involved in its ability to induce abscesses. Two distinct capsular polysaccharides, polysaccharide A (PS A) and PS B, have been shown to be synthesized by the prototype strain for the study of abscesses, NCTC9343. Both of these polysaccharides in purified form induce abscesses in animal models. In this study, we demonstrate that the CPC of NCTC9343 is composed of at least three distinct capsular polysaccharides: PS A, PS B, and PS C. A previously described locus contains genes whose products are involved in the biosynthesis of PS C rather than PS B as was originally suggested. The actual PS B biosynthesis locus was cloned, sequenced, and found to contain 22 genes in an operon-type structure. A mutant with a large chromosomal deletion of the PS B biosynthesis locus was created so that the contribution of PS B to the formation of abscesses could be assessed in a rodent model. Although purified PS B can induce abscesses, removal of this polysaccharide does not attenuate the organism's ability to induce abscesses.

Indexed as

Chromosome MappingAbscessAnimalsBacterial CapsulesBacteroides fragilisCloning, MolecularHumansMaleMiceMice, Inbred C57BLPhenotype

Identifiers

PMID11035722
PMCPMC97696
OpenAlexW2109064484

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.