Consensus on β-Lactamase Nomenclature

Patricia A. Bradford, Robert A. Bonomo, Karen Bush, Alessandra Carattoli, Michael Feldgarden, Daniel H. Haft, Yoshikazu Ishii, George A. Jacoby, William Klimke, Timothy Palzkill, Laurent Poirel, Gian Maria Rossolini, Pranita D. Tamma, Cesar A. Arias

Research output: Contribution to journalReview articlepeer-review

11 Scopus citations


Assigning names to β-lactamase variants has been inconsistent and has led to confusion in the published literature. The common availability of whole genome sequencing has resulted in an exponential growth in the number of new β-lactamase genes. In November 2021 an international group of β-lactamase experts met virtually to develop a consensus for the way naturally-occurring β-lactamase genes should be named. This document formalizes the process for naming novel β-lactamases, followed by their subsequent publication.

Original languageEnglish (US)
Pages (from-to)e0033322
JournalAntimicrobial Agents and Chemotherapy
Issue number4
StatePublished - Apr 19 2022


  • beta-lactamases
  • beta-Lactamase Inhibitors
  • beta-Lactamases/genetics
  • Consensus

ASJC Scopus subject areas

  • Pharmacology (medical)
  • Infectious Diseases
  • Pharmacology


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