Evidence map›Paper›PMID 9721274›Full record

ArticleJournal of bacteriology1998

Molecular cloning and characterization of cgs, the Brucella abortus cyclic beta(1-2) glucan synthetase gene: genetic complementation of Rhizobium meliloti ndvB and Agrobacterium tumefaciens chvB mutants.

N Iñón de Iannino, G Briones, M Tolmasky, R A Ugalde

Open access · greenAbstract read
In one paragraph

Article in Journal of bacteriology, 1998. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 44 papers.

0numbers the graph read from it
0cells of the map it votes in
44citing papers in PubMed
1.7field-weighted citation impact, top 15% 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

44 citing papers in PubMed, 93 citations in OpenAlex.

  1. Review
  2. Article
  3. New glycoside hydrolase families of β-1,2-glucanases.Protein science : a publication of the Protein Society · 2025
    Article
  4. Review
  5. Article
  6. Article
  7. Article
  8. International journal of molecular sciences · 2023
    Article
  9. Discovery and Biotechnological Exploitation of Glycoside-Phosphorylases.International journal of molecular sciences · 2022
    Review
  10. Uncovering the Hidden Credentials ofMicrobiology and molecular biology reviews : MMBR · 2021
    Review
  11. Immune Response to MucosalFrontiers in immunology · 2019
    Review
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  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

4 authors at 3 institutions in 2 countries.

N Iñón de IanninoInstituto de Investigaciones Biotecnológicas, Universidad Nacional de General San Martín, San Martín 1650, Argentina.
G Briones
M Tolmasky
R A Ugalde
National University of General San Martín · ARCalifornia State University, Fullerton · USComisión Nacional de Energía Atómica · AR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The animal pathogen Brucella abortus contains a gene, cgs, that complemented a Rhizobium meliloti nodule development (ndvB) mutant and an Agrobacterium tumefaciens chromosomal virulence (chvB) mutant. The complemented strains recovered the synthesis of cyclic beta(1-2) glucan, motility, virulence in A. tumefaciens, and nitrogen fixation in R. meliloti; all traits were strictly associated with the presence of an active cyclic beta(1-2) glucan synthetase protein in the membranes. Nucleotide sequencing revealed the presence in B. abortus of an 8.49-kb open reading frame coding for a predicted membrane protein of 2,831 amino acids (316.2 kDa) and with 51% identity to R. meliloti NdvB. Four regions of the B. abortus protein spanning amino acids 520 to 800, 1025 to 1124, 1284 to 1526, and 2400 to 2660 displayed similarities of higher than 80% with R. meliloti NdvB. Tn3-HoHo1 mutagenesis showed that the C-terminal 825 amino acids of the Brucella protein, although highly conserved in Rhizobium, are not necessary for cyclic beta(1-2) glucan synthesis. Confirmation of the identity of this protein as B. abortus cyclic beta(1-2) glucan synthetase was done by the construction of a B. abortus Tn3-HoHo1 insertion mutant that does not form cyclic beta(1-2) glucan and lacks the 316.2-kDa membrane protein. The recovery of this mutant from the spleens of inoculated mice was decreased by 3 orders of magnitude compared with that of the parental strain; this result suggests that cyclic beta(1-2) glucan may be a virulence factor in Brucella infection.

Indexed as

DNA-Binding ProteinsGenetic Complementation TestMembrane ProteinsVirulence FactorsAgrobacterium tumefaciensAnimalsBacterial ProteinsBase SequenceBrucella abortusCloning, MolecularCosmidsDNA PrimersGlucosyltransferasesMiceMice, Inbred BALB CMutagenesis, Site-DirectedAcvB protein, Agrobacterium tumefaciensBacterial Proteinscyclic beta(1-2) glucan synthetase, Brucella melitensisDNA-Binding ProteinsDNA PrimersGlucosyltransferasesMembrane ProteinsNdvB protein, Rhizobium melilotiVirulence Factors

Identifiers

PMID9721274
PMCPMC107446
OpenAlexW2121831690

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.