Search results
Results From The WOW.Com Content Network
The other type of beta-lactamase is of the metallo type ("type B"). Metallo-beta-lactamases (MBLs) need metal ion(s) (1 or 2 Zn 2+ ions [2]) on their active site for their catalytic activities. [3] The structure of the New Delhi metallo-beta-lactamase 1 is given by 6C89. It resembles a RNase Z, from which it is thought to have evolved.
Enterobacterales is an order of Gram-negative, non-spore forming, facultatively anaerobic, rod-shaped bacteria with the class Gammaproteobacteria. [1] The type genus of this order is Enterobacter . [ 1 ]
In 2010, a gene bla CTX-M-15 responsible for coding CTX-M-15 extended-spectrum β-lactamase (ESBL) jumped from its chromosome to its plasmid, which was then shared among several bacteria. ESBL confers resistance to pathogenic bacterial strains. This caused the development of antibiotic resistance in almost all known pathogenic bacteria at that ...
Gram-negative bacteria can develop and transfer β-lactam resistance (including carbapenem resistance) in many ways. They can generate new extended-spectrum β-lactamases (ESBL) from the existing spectrum of plasmid-mediated β-lactamases through amino acid substitution. They can acquire genes encoding ESBL from environmental bacteria.
Its hydrogen yield is lower than that of such strict anaerobes as Clostridia: strictly anaerobic bacteria produce a theoretical maximum of 4 mol H 2 /mol glucose, while such facultative anaerobic bacteria as K. aerogenes theoretically yield a maximum of 2 mol H 2 /mol glucose. [6] K. aerogenes may spoil maple sap and syrup. [7]
Klebsiella is a genus of Gram-negative, oxidase-negative, rod-shaped bacteria with a prominent polysaccharide-based capsule. [3]Klebsiella is named after German-Swiss microbiologist Edwin Klebs (1834–1913).
The Morganellaceae are a family of Gram-negative bacteria that include some important human pathogens formerly classified as Enterobacteriaceae.This family is a member of the order Enterobacterales in the class Gammaproteobacteria of the phylum Pseudomonadota.
The genus Raoultella is composed of Gram-negative, oxidase-negative, aerobic, nonmotile, capsulated, facultatively anaerobic rods (formerly designated Klebsiella) in the family Enterobacteriaceae.