Evidence map›Paper›PMID 22645135›Full record

ArticleThe Journal of biological chemistry2012

Structural basis for activation of an integral membrane protease by lipopolysaccharide.

Elif Eren, Bert van den Berg

Open access · hybridAbstract read
In one paragraph

Article in The Journal of biological chemistry, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
2.9field-weighted citation impact, top 9% 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

17 citing papers in PubMed, 34 citations in OpenAlex.

  1. Lipopolysaccharide of theBiomolecules · 2021
    Review
  2. Biomolecules · 2020
    Review
  3. Biomolecules · 2020
    Review
  4. Review
  5. Article
  6. Review
  7. Article
  8. Gram-negative trimeric porins have specific LPS binding sites that are essential for porin biogenesis.Proceedings of the National Academy of Sciences of the United States of America · 2016
    Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Fibrinolytic and coagulative activities of Yersinia pestis.Frontiers in cellular and infection microbiology · 2013
    Review
  17. Yersinia infection tools-characterization of structure and function of adhesins.Frontiers in cellular and infection microbiology · 2012
    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

2 authors at 1 institution in 1 country.

Elif ErenProgram in Molecular Medicine, University of Massachusetts Medical School, Worcester, Massachusetts 01605, USA.
Bert van den Berg
University of Massachusetts Chan Medical School · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Omptins constitute a unique family of outer membrane proteases that are widespread in Enterobacteriaceae. The plasminogen activator (Pla) of Yersinia pestis is an omptin family member that is very important for development of both bubonic and pneumonic plague. The physiological function of Pla is to cleave (activate) human plasminogen to form the plasma protease plasmin. Uniquely, lipopolysaccharide (LPS) is essential for the catalytic activity of all omptins, including Pla. Why omptins require LPS for enzymatic activity is unknown. Here, we report the co-crystal structure of LPS-free Pla in complex with the activation loop peptide of human plasminogen, its natural substrate. The structure shows that in the absence of LPS, the peptide substrate binds deep within the active site groove and displaces the nucleophilic water molecule, providing an explanation for the dependence of omptins on LPS for enzymatic activity.

Indexed as

Amino Acid SequenceBacterial ProteinsBiocatalysisCatalytic DomainCrystallography, X-RayEnzyme ActivationFibrinolysinHumansLipopolysaccharidesModels, MolecularMutationPeptidesPlasminogenPlasminogen ActivatorsProtein BindingProtein ConformationBacterial ProteinsFibrinolysinLipopolysaccharidesomptin outer membrane proteasePeptidesPla protease, Yersinia pestisPlasminogenPlasminogen ActivatorsSerine Endopeptidases

Identifiers

PMID22645135
PMCPMC3390672
OpenAlexW2144604037

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.