… Escherichia coli strains belonging to diverse pathotypes have increasingly been recognized
as a major public health concern. The β-lactam antibiotics have been used successfully to …

… N-terminal amino acids of the mature major Escherichia coli lipoprotein, (ii) amino acids …
beta-lactamase (EC 3.5.2.6) sequence. This protein had an enzymatically active beta-lactamase …

… Escherichia coli strains determining 17 different plasmid-determined ,I-lactamases were
tested … in evaluating new P-lactams or ,Blactamase inhibitors for this mechanism of resistance. …

… and are mainly found in strains of Salmonella and Escherichia coli (3,4). These enzymes
probably evolved from chromosomal β-lactamases of Kluyvera spp. by gene transposition from …

… -spectrum ,B-lactamases related to TEM and four enzymes derived from SHV-1 were
transferred to a common Escherichia coli host so that the activity of a variety of j-lactams could be …

… This review discusses the recent findings (July 2008–January 2010) on extended-spectrum
β-lactamase (ESBL)-producing Escherichia coli, mainly focussed on the epidemiology and …

… -spectrum beta-lactamase (ESBL)-producing Escherichia coli (… Extended-spectrum
beta-lactamase (ESBL)-… Until recently, most infections caused by ESBL-producing Escherichia coli …

… Escherichia coli, is widespread among numerous species of Gram- bacteria. Newly …
cereus 56937 (D246, L220, R244, N276) and in E. coli TEMl p-lactamases that R244 has no …

… confer stability to many -lactamases from gram-negative bacteria. However, many members
of the family Enterobacteriaceae other than Escherichia coli developed resistance to the …

… Escherichia coli isolated from the fecal flora of laboratory dogs, and we identified a 3-lactamase …
of this enzyme were quite distinct from those of chromosomal cephalosporinases from E. …