Evidence map›Paper›PMID 10498714›Full record

ArticleJournal of bacteriology1999

Identification of pel, a Streptococcus pyogenes locus that affects both surface and secreted proteins.

Z Li, D D Sledjeski, B Kreikemeyer, A Podbielski, M D Boyle

Open access · bronzeAbstract read
In one paragraph

Article in Journal of bacteriology, 1999. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 34 papers.

0numbers the graph read from it
0cells of the map it votes in
34citing papers in PubMed
8.3field-weighted citation impact, top 2% 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

34 citing papers in PubMed, 70 citations in OpenAlex.

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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 2 institutions in 2 countries.

Z LiDepartment of Microbiology and Immunology, Medical College of Ohio, Toledo, Ohio 43614, USA.
D D Sledjeski
B Kreikemeyer
A Podbielski
M D Boyle
University of Toledo Medical Center · USUniversität Ulm · DE

Funding

INTERACTION OF GROUP A STREP WITH THE PLASMINOGEN SYSTEMR01AI043474 · NIAID · UNIVERSITY OF TOLEDO HEALTH SCI CAMPUS · PI BOYLE, MICHAEL D. · 1998 to 2001
$428k
NIAID NIH HHS AI 43474
6 · The paper itself

Abstract

A Tn917 insertion mutant of an M49 serotype, opacity factor-positive Streptococcus pyogenes, was isolated. It had the following phenotypes: decreased beta-hemolysis mediated by streptolysin S, reduction in the activity of a secreted cysteine protease and streptokinase, and an altered immunoglobulin and fibrinogen-binding phenotype. The site of insertion of Tn917 into the chromosome and the surrounding sequence, the pel region (pleiotropic effect locus), was determined. Phage A25 transduction confirmed that the pleiotropic changes in phenotype could be cotransduced with Tn917. The pel region was cloned and sequenced, and the transposon was found to be inserted upstream of a single open reading frame which led to a failure to transcribe a 500-base mRNA. The loss of this transcript decreased the transcription of emm and speB genes and reduced the secretion of streptokinase. Enhanced Pel expression from a nisin-inducible plasmid resulted in increased message levels for emm in a wild-type organism. Characterization of the pel mutant provides evidence for the coordinated regulation of secreted and surface proteins and suggests the existence of a new global regulatory factor in S. pyogenes.

Indexed as

Antigens, BacterialBacterial Outer Membrane ProteinsGenes, BacterialBacterial ProteinsBase SequenceCarrier ProteinsCloning, MolecularCysteine EndopeptidasesHemolysin ProteinsHemolysisMembrane ProteinsMolecular Sequence DataMutagenesis, InsertionalPeptide HydrolasesPhenotypeSequence Analysis, DNAAntigens, BacterialBacterial Outer Membrane ProteinsBacterial ProteinsCarrier ProteinsCysteine EndopeptidasesHemolysin ProteinsMembrane Proteinsopacity factorPeptide Hydrolasesstreptococcal M proteinStreptokinasestreptolysin SStreptolysins

Identifiers

PMID10498714
PMCPMC103629
OpenAlexW2144034697

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.