Genetic and biochemical characterization of BIM-1, a novel acquired subgroup B1 MBL found in a Pseudomonas sp. strain from the Brazilian Amazon region.

Objectives: To characterize a novel acquired MBL, BIM-1, in a Pseudomonas #2 (subgroup P. guariconensis) strain isolated from the Aurá river located in the Brazilian Amazon hydrographic basin.

Methods: WGS using an Illumina® MiSeq System was used to characterize the genome of Pseudomonas sp.

Characterization of a Carbapenem-Resistant BKC-1-Producing Clinical Isolate Belonging to the Pseudomonas putida Group from Brazil.

Since its first report, the class A Brazilian Klebsiella carbapenemase (BKC) has been detected only among isolates from Brazilian hospitals. In this study, we characterized a multidrug-resistant Pseudomonas juntendi clinical isolate and identified a 43.3-kb plasmid carrying and a class 1 integron (In) containing the , , , and gene cassettes.

Kinetics Analysis of β-Lactams Hydrolysis by OXA-50 Variants of .

is an opportunist pathogen usually associated with life threatening infections and exhibits a set of intrinsic and acquired antimicrobial mechanisms. Although resistance to penicillins-like compounds is commonly associated with the chromosomal -derived cephalosporinases β-lactamase, the real contribution of OXA-50, a second chromosomally encoded β-lactamase, remains unclear. In this study, we characterized the biochemical properties of OXA-50, OXA-488, and OXA-494.