Evidence map›Paper›PMID 10377104›Full record

ArticleInfection and immunity1999

Differences in the carboxy-terminal (Putative phospholipid binding) domains of Clostridium perfringens and Clostridium bifermentans phospholipases C influence the hemolytic and lethal properties of these enzymes.

M Jepson, A Howells, H L Bullifent, B Bolgiano, D Crane, J Miller, J Holley, P Jayasekera, R W Titball

Open access · bronzeAbstract readComparative Study
In one paragraph

Article in Infection and immunity, 1999. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
1.5field-weighted citation impact, top 17% 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

9 citing papers in PubMed, 34 citations in OpenAlex.

  1. Review
  2. Article
  3. Review
  4. Lumbar discitis caused by Clostridium perfringens.Journal of clinical microbiology · 2014
    Article
  5. Article
  6. Article
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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

9 authors at 2 institutions in 1 country.

M JepsonDefence Evaluation and Research Agency, CBD Porton Down, Salisbury, Wiltshire SP4 0JQ, United Kingdom.
A Howells
H L Bullifent
B Bolgiano
D Crane
J Miller
J Holley
P Jayasekera
R W Titball
Defence Science and Technology Laboratory · GBNational Institute for Biological Standards and Control · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The phospholipases C of C. perfringens (alpha-toxin) and C. bifermentans (Cbp) show >50% amino acid homology but differ in their hemolytic and toxic properties. We report here the purification and characterisation of alpha-toxin and Cbp. The phospholipase C activity of alpha-toxin and Cbp was similar when tested with phosphatidylcholine in egg yolk or in liposomes. However, the hemolytic activity of alpha-toxin was more than 100-fold that of Cbp. To investigate whether differences in the carboxy-terminal domains of these proteins were responsible for differences in the hemolytic and toxic properties, a hybrid protein (NbiCalpha) was constructed comprising the N domain of Cbp and the C domain of alpha-toxin. The hemolytic activity of NbiCalpha was 10-fold that of Cbp, and the hybrid enzyme was toxic. These results confirm that the C-terminal domain of these proteins confers different properties on the enzymatically active N-terminal domain of these proteins.

Indexed as

Amino Acid SequenceAnimalsBacterial ProteinsCloning, MolecularClostridiumClostridium InfectionsClostridium perfringensEnzyme ActivationMiceMolecular Sequence DataPhospholipidsSequence AlignmentSubstrate SpecificityType C PhospholipasesBacterial ProteinsPhospholipidsType C Phospholipases

Identifiers

PMID10377104
PMCPMC116509
OpenAlexW2170833699

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.