Evidence map›Paper›PMID 19075063›Full record

ArticleAntimicrobial agents and chemotherapy2009

Naturally occurring Class A ss-lactamases from the Burkholderia cepacia complex.

Laurent Poirel, José-Manuel Rodriguez-Martinez, Patrick Plésiat, Patrice Nordmann

Open access · greenAbstract read
In one paragraph

Article in Antimicrobial agents and chemotherapy, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 38 papers.

0numbers the graph read from it
0cells of the map it votes in
38citing papers in PubMed
0.5field-weighted citation impact, top 39% 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

38 citing papers in PubMed, 59 citations in OpenAlex.

  1. Antimicrobial agents and chemotherapy · 2025
    Article
  2. In vitro susceptibility ofNew microbes and new infections · 2025
    Review
  3. Article
  4. Carbapenem-ResistantTransboundary and emerging diseases · 2024
    Article
  5. Article
  6. Article
  7. Article
  8. The Class A β-Lactamase Produced byAntibiotics (Basel, Switzerland) · 2022
    Article
  9. Article
  10. Article
  11. Review
  12. Article
  13. Antimicrobial agents and chemotherapy · 2021
    Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Review
  19. Article
  20. 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

4 authors at 2 institutions in 1 country.

Laurent PoirelService de Bactériologie-Virologie, Hôpital de Bicêtre, Le Kremlin-Bicêtre Cedex, France.
José-Manuel Rodriguez-Martinez
Patrick Plésiat
Patrice Nordmann
Inserm · FRAssistance Publique – Hôpitaux de Paris · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Chromosomally encoded ss-lactamases from the Burkholderia cepacia complex species (formerly Pseudomonas cepacia) were characterized. Cloning and sequencing identified an Ambler class A ss-lactamase (PenB) from B. cenocepacia. It shares 82% amino acid identity with the PenA ss-lactamases previously identified from B. multivorans 249. Its expression was dependent upon a LysR-type regulatory protein. Its narrow-spectrum hydrolysis activity mostly included penicillins but also included expanded-spectrum cephalosporins and aztreonam at lower levels. In that study, Pen-like ss-lactamases (PenC, PenD, PenE, PenF) that shared 63 to 92% identity with PenB from B. cenocepacia were identified from other Burkholderia species. The corresponding ss-lactamase genes might be used as genetic tools for accurate Burkholderia species identification.

Indexed as

AllelesAmino Acid SequenceAmino Acid SubstitutionBase Sequencebeta-LactamasesBurkholderia cepacia complexDNA, BacterialDrug Resistance, Multiple, BacterialHumansHydrolysisIsoelectric PointKineticsMicrobial Sensitivity TestsMolecular Sequence DataPhylogenyPlasmidsbeta-LactamasesDNA, Bacterial

Identifiers

PMID19075063
PMCPMC2650541
OpenAlexW2153258657

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.