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Publication Abstract from PubMed

A carbapenem-resistant Pseudomonas stutzeri strain isolated from a Dutch patient was analyzed in detail. This isolate produced a metallo-beta-lactamase (MBL) whose gene, with 43.5% GC content, was cloned and expressed in Escherichia coli. beta-Lactamase DIM-1 (for Dutch imipenemase) was weakly related to other Ambler class B beta-lactamases, sharing <52% amino acid identity with the most closely related MBL, GIM-1, and 45% identity with IMP-type MBLs. The beta-Lactamase DIM-1 significantly hydrolyzed broad-spectrum cephalosporins and carbapenems and spared aztreonam. This MBL gene was embedded in a class 1 integron containing two other gene cassettes, encoding resistance to aminoglycosides and disinfectants, that was located on a 70-kb plasmid.

Characterization of DIM-1, an integron-encoded metallo-beta-lactamase from a Pseudomonas stutzeri clinical isolate in the Netherlands.,Poirel L, Rodriguez-Martinez JM, Al Naiemi N, Debets-Ossenkopp YJ, Nordmann P Antimicrob Agents Chemother. 2010 Jun;54(6):2420-4. doi: 10.1128/AAC.01456-09., Epub 2010 Mar 22. PMID:20308383^[1]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.