Evidence map›Paper›PMID 19608744›Full record

ArticleThe Journal of biological chemistry2009

Differential recognition and hydrolysis of host carbohydrate antigens by Streptococcus pneumoniae family 98 glycoside hydrolases.

Melanie A Higgins, Garrett E Whitworth, Nahida El Warry, Mialy Randriantsoa, Eric Samain, Robert D Burke, David J Vocadlo, Alisdair B Boraston

Open access · hybridAbstract read
In one paragraph

Article in The Journal of biological chemistry, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
1.5field-weighted citation impact, top 19% 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

16 citing papers in PubMed, 45 citations in OpenAlex.

  1. Article
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  6. Two complementary α-fucosidases fromThe Journal of biological chemistry · 2019
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  11. Review
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  15. Structure of the fucose mutarotase from Streptococcus pneumoniae in complex with L-fucose.Acta crystallographica. Section F, Structural biology and crystallization communications · 2011
    Article
  16. 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

8 authors at 3 institutions in 2 countries.

Melanie A HigginsBiochemistry and Microbiology, University of Victoria, Victoria, British Columbia V8W 3P6, Canada.
Garrett E Whitworth
Nahida El Warry
Mialy Randriantsoa
Eric Samain
Robert D Burke
David J Vocadlo
Alisdair B Boraston
University of Victoria · CACentre National de la Recherche Scientifique · FRSimon Fraser University · CA

Funding

Structural Basis of Immune Recognition of Glycosylated AntigensU54GM062116 · NIGMS · SCRIPPS RESEARCH INSTITUTE, THE · PI PAULSON, JAMES C · 2001 to 2010
$80.3M
NIGMS NIH HHS GM62116NIGMS NIH HHS U54 GM062116
6 · The paper itself

Abstract

The presence of a fucose utilization operon in the Streptococcus pneumoniae genome and its established importance in virulence indicates a reliance of this bacterium on the harvesting of host fucose-containing glycans. The identities of these glycans, however, and how they are harvested is presently unknown. The biochemical and high resolution x-ray crystallographic analysis of two family 98 glycoside hydrolases (GH98s) from distinctive forms of the fucose utilization operon that originate from different S. pneumoniae strains reveal that one enzyme, the predominant type among pneumococcal isolates, has a unique endo-beta-galactosidase activity on the LewisY antigen. Altered active site topography in the other species of GH98 enzyme tune its endo-beta-galactosidase activity to the blood group A and B antigens. Despite their different specificities, these enzymes, and by extension all family 98 glycoside hydrolases, use an inverting catalytic mechanism. Many bacterial and viral pathogens exploit host carbohydrate antigens for adherence as a precursor to colonization or infection. However, this is the first evidence of bacterial endoglycosidase enzymes that are known to play a role in virulence and are specific for distinct host carbohydrate antigens. The strain-specific distribution of two distinct types of GH98 enzymes further suggests that S. pneumoniae strains may specialize to exploit host-specific antigens that vary from host to host, a factor that may feature in whether a strain is capable of colonizing a host or establishing an invasive infection.

Indexed as

Bacterial ProteinsGlycoside HydrolasesHumansLewis Blood Group AntigensOperonPneumococcal InfectionsSpecies SpecificityStreptococcus pneumoniaeSubstrate SpecificityBacterial ProteinsGlycoside HydrolasesLewis Blood Group AntigensLewis Y antigen

Identifiers

PMID19608744
PMCPMC2758015
OpenAlexW1989378912

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.