Evidence map›Paper›PMID 23913691›Full record

ArticleThe Journal of biological chemistry2013

Kinetics of avibactam inhibition against Class A, C, and D β-lactamases.

David E Ehmann, Haris Jahic, Philip L Ross, Rong-Fang Gu, Jun Hu, Thomas F Durand-Réville, Sushmita Lahiri, Jason Thresher, Stephania Livchak, Ning Gao and 3 more

Abstract read
In one paragraph

Article in The Journal of biological chemistry, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 211 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
211citing papers in PubMed, 2 pooled it
–field-weighted citation impact
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

211 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
  3. NMR crystallography reveals active-site protonation states of Toho-1 β-lactamase in complex with avibactam.Proceedings of the National Academy of Sciences of the United States of America · 2026
    Article
  4. Article
  5. Review
  6. Article
  7. Article
  8. Review
  9. Article
  10. Review
  11. Review
  12. Article
  13. Article
  14. Review
  15. Article
  16. Article
  17. Article
  18. Article
  19. Review
  20. Article

151 more citing papers are in PubMed but not listed here.

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

13 authors.

David E EhmannFrom the Infection Innovative Medicines Unit and the Discovery Sciences Innovative Medicines Unit, AstraZeneca R&D Boston, Waltham, Massachusetts 02451.
Haris Jahic
Philip L Ross
Rong-Fang Gu
Jun Hu
Thomas F Durand-Réville
Sushmita Lahiri
Jason Thresher
Stephania Livchak
Ning Gao
Tiffany Palmer
Grant K Walkup
Stewart L Fisher

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Avibactam is a non-β-lactam β-lactamase inhibitor with a spectrum of activity that includes β-lactamase enzymes of classes A, C, and selected D examples. In this work acylation and deacylation rates were measured against the clinically important enzymes CTX-M-15, KPC-2, Enterobacter cloacae AmpC, Pseudomonas aeruginosa AmpC, OXA-10, and OXA-48. The efficiency of acylation (k2/Ki) varied across the enzyme spectrum, from 1.1 × 10(1) m(-1)s(-1) for OXA-10 to 1.0 × 10(5) for CTX-M-15. Inhibition of OXA-10 was shown to follow the covalent reversible mechanism, and the acylated OXA-10 displayed the longest residence time for deacylation, with a half-life of greater than 5 days. Across multiple enzymes, acyl enzyme stability was assessed by mass spectrometry. These inhibited enzyme forms were stable to rearrangement or hydrolysis, with the exception of KPC-2. KPC-2 displayed a slow hydrolytic route that involved fragmentation of the acyl-avibactam complex. The identity of released degradation products was investigated, and a possible mechanism for the slow deacylation from KPC-2 is proposed.

Indexed as

Anti-Bacterial AgentsAzabicyclo Compoundsbeta-LactamasesDrug Resistance, BacterialEnterobacter cloacaeEnzyme InhibitorsEscherichia coliHydrolysisKineticsMagnetic Resonance SpectroscopyMass SpectrometryMicrobial Sensitivity TestsPlasmidsPseudomonas aeruginosaTime FactorsAnti-Bacterial AgentsavibactamAzabicyclo Compoundsbeta-lactamase CTX-M-15beta-lactamase KPC-2beta-lactamase PSE-2beta-LactamasesEnzyme InhibitorsoxacillinaseAntibioticsDrug DiscoveryEnzyme InhibitorsEnzyme KineticsMass Spectrometry (MS)

Identifiers

PMID23913691
PMCPMC3784710

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.