SME-3, a Novel Member of the Serratia marcescens SME Family of Carbapenem-Hydrolyzing β-Lactamases

Author:

Queenan Anne Marie1,Shang Wenchi1,Schreckenberger Paul2,Lolans Karen3,Bush Karen1,Quinn John3

Affiliation:

1. Johnson & Johnson Pharmaceutical Research and Development, L.L.C., Raritan, New Jersey

2. Loyola University Medical Center, Maywood, Illinois

3. CIDRI, John H. Stroger Hospital of Cook County, Chicago, Illinois

Abstract

ABSTRACT Imipenem-resistant Serratia marcescens isolates were cultured from a lung transplant patient given multiple antibiotics over several months. The strains expressed SME-3, a β-lactamase of the rare SME carbapenem-hydrolyzing family. SME-3 differed from SME-1 by a single amino acid substitution of tyrosine for histidine at position 105, but the two β-lactamases displayed similar hydrolytic profiles.

Publisher

American Society for Microbiology

Subject

Infectious Diseases,Pharmacology (medical),Pharmacology

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