Evidence map›Paper›PMID 14638755›Full record

ArticleInfection and immunity2003

Genetic basis for biosynthesis of the (alpha 1-->4)-linked N-acetyl-D-glucosamine 1-phosphate capsule of Neisseria meningitidis serogroup X.

Yih-Ling Tzeng, Corie Noble, David S Stephens

Abstract read
In one paragraph

Article in Infection and immunity, 2003. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing 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

13 citing papers in PubMed.

  1. Article
  2. Article
  3. Review
  4. Article
  5. Article
  6. Regulation of capsule in Neisseria meningitidis.Critical reviews in microbiology · 2016
    Review
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. 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

3 authors.

Yih-Ling TzengDepartment of Medicine, Emory University School of Medicine, Atlanta, Georgia, USA. ytzeng@emory.edu
Corie Noble
David S Stephens

Funding

MENINGOCOCCAL LIPOOLIGOSACCHARIDE &MUCOSAL PATHOGENESISR01AI033517 · NIAID · EMORY UNIVERSITY · PI STEPHENS, DAVID S · 1993 to 2007
$1.7M
REGULATION OF CAPSULE BIOSYNTHESIS IN N MENINGITIDISR01AI040247 · NIAID · EMORY UNIVERSITY · PI STEPHENS, DAVID S · 1997 to 2006
$1.2M
NIAID NIH HHS AI33517NIAID NIH HHS R01 AI033517NIAID NIH HHS R01 AI040247
6 · The paper itself

Abstract

The genetic basis for biosynthesis of the (alpha1-->4)-linked N-acetyl-D-glucosamine 1-phosphate capsule of Neisseria meningitidis serogroup X was defined. The biosynthesis gene cassette was a approximately 4.2-kb region located between ctrA of the capsule transport operon and galE, which encodes the UDP-glucose-4-epimerase. This location was identical to the locations of the biosynthesis cassettes in other meningococcal serogroups. Three open reading frames unique to meningococcus serogroup X were identified. Deletion-insertion mutation and colony immunoblotting confirmed that these three genes were essential for serogroup X capsule expression, and the genes were designated xcbA, xcbB, and xcbC (serogroup X capsule biosynthesis). Reverse transcriptase PCR indicated that the xcbABC genes form an operon and are cotranscribed divergently from ctrA. XcbA exhibited 52% amino acid similarity to SacB, the putative capsule polymerase of meningococcus serogroup A, suggesting that it plays a role as the serogroup X capsule polymerase. An IS1016 element was found within the intergenic region separating ctrA and xcbA in multiple strains, and this element did not interfere with capsule expression.

Indexed as

OperonAcetylglucosamineAmino Acid SequenceBacterial CapsulesBacterial ProteinsBase SequenceBlood Bactericidal ActivityDNA-Binding ProteinsHumansMolecular Sequence DataNeisseria meningitidisPhosphatesSequence Analysis, DNASerotypingTranscription FactorsUDPglucose 4-EpimeraseAcetylglucosamineBacterial ProteinsCtrA protein, CaulobacterDNA-Binding Proteinsgalactose epimerasePhosphatesTranscription FactorsUDPglucose 4-Epimerase

Identifiers

PMID14638755
PMCPMC308903

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.