Evidence map›Paper›PMID 21357723›Full record

ArticleInfection and immunity2011

ArcA-regulated glycosyltransferase lic2B promotes complement evasion and pathogenesis of nontypeable Haemophilus influenzae.

Sandy M S Wong, Frank St Michael, Andrew Cox, Sanjay Ram, Brian J Akerley

Open access · greenAbstract read
In one paragraph

Article in Infection and immunity, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing 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

23 citing papers in PubMed, 30 citations in OpenAlex.

  1. Article
  2. Two-Component Systems inVeterinary sciences · 2025
    Review
  3. Review
  4. The ArcAB Two-Component System: Function in Metabolism, Redox Control, and Infection.Microbiology and molecular biology reviews : MMBR · 2022
    Review
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Review
  13. Article
  14. Panel 5: Microbiology and immunology panel.Otolaryngology--head and neck surgery : official journal of American Academy of Otolaryngology-Head and Neck Surgery · 2013
    Review
  15. Article
  16. Article
  17. Article
  18. Article
  19. Haemophilus influenzae and oxidative stress.Frontiers in cellular and infection microbiology · 2012
    Review
  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

5 authors at 3 institutions in 2 countries.

Sandy M S WongDepartment of Microbiology and Physiological Systems, University of Massachusetts Medical School, 55 Lake Ave. N., S6-242, Worcester, MA 01655, USA.
Frank St Michael
Andrew Cox
Sanjay Ram
Brian J Akerley
University of Massachusetts Chan Medical School · USInstitute for Biological Sciences · CANational Academies of Sciences, Engineering, and Medicine · US

Funding

Complement Activation on Neisseria meningitidisR01AI054544 · NIAID · UNIV OF MASSACHUSETTS MED SCH WORCESTER · PI RAM, SANJAY · 2004 to 2014
$3.4M
Global regulatory interactions in bacterial pathogenesisR01AI049437 · NIAID · UNIV OF MASSACHUSETTS MED SCH WORCESTER · PI AKERLEY, BRIAN J. · 2002 to 2006
$1.9M
Global regulatory interactions in bacterial pathogenesisR56AI049437 · NIAID · UNIV OF MASSACHUSETTS MED SCH WORCESTER · PI AKERLEY, BRIAN · 2009 to 2009
$410k
NIAID NIH HHS AI-049437NIAID NIH HHS R01 AI049437NIAID NIH HHS R56 AI049437
6 · The paper itself

Abstract

Signaling mechanisms used by Haemophilus influenzae to adapt to conditions it encounters during stages of infection and pathogenesis are not well understood. The ArcAB two-component signal transduction system controls gene expression in response to respiratory conditions of growth and contributes to resistance to bactericidal effects of serum and to bloodstream infection by H. influenzae. We show that ArcA of nontypeable H. influenzae (NTHI) activates expression of a glycosyltransferase gene, lic2B. Structural comparison of the lipooligosaccharide (LOS) of a lic2B mutant to that of the wild-type strain NT127 revealed that lic2B is required for addition of a galactose residue to the LOS outer core. The lic2B gene was crucial for optimal survival of NTHI in a mouse model of bacteremia and for evasion of serum complement. The results demonstrate that ArcA, which controls cellular metabolism in response to environmental reduction and oxidation (redox) conditions, also coordinately controls genes that are critical for immune evasion, providing evidence that NTHI integrates redox signals to regulate specific countermeasures against host defense.

Indexed as

AnimalsBacterial ProteinsBlotting, WesternCell SeparationComplement System ProteinsFlow CytometryGene ExpressionGene Expression ProfilingGene Expression Regulation, BacterialHaemophilus InfectionsHaemophilus influenzaeHumansImmune EvasionLipopolysaccharidesMiceOxidation-ReductionBacterial ProteinsComplement System Proteinslic2B protein, Haemophilus influenzaelipid-linked oligosaccharidesLipopolysaccharides

Identifiers

PMID21357723
PMCPMC3088160
OpenAlexW1966572047

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.