Results 11 to 20 of about 781,021 (270)

An Extended Reservoir of Class-D Beta-Lactamases in Non-Clinical Bacterial Strains [PDF]

open access: yesMicrobiology Spectrum, 2022
Bacterial genes coding for antibiotic resistance represent a major issue in the fight against bacterial pathogens. Among those, genes encoding beta-lactamases target penicillin and related compounds such as carbapenems, which are critical for human ...
Valérian Lupo   +6 more
doaj   +2 more sources

Exploiting the aggregation propensity of beta-lactamases to design inhibitors that induce enzyme misfolding [PDF]

open access: yesNature Communications, 2023
There is an arms race between beta-lactam antibiotics development and co-evolving beta-lactamases, which provide resistance by breaking down beta-lactam rings.
Ladan Khodaparast   +13 more
doaj   +2 more sources

Extended-Spectrum Beta-Lactamases [PDF]

open access: yesCanadian Journal of Infectious Diseases and Medical Microbiology, 2006
The definition of extended-spectrum beta-lactamases (ESBLs) has expanded rapidly, in terms of both the number and the variety of enzymes. Bacteria bearing plasmidic ESBLs are spreading widely throughout the world.
Kevin R Forward
doaj   +2 more sources

Novel Computational Protocols for Functionally Classifying and Characterising Serine Beta-Lactamases. [PDF]

open access: yesPLoS Computational Biology, 2016
Beta-lactamases represent the main bacterial mechanism of resistance to beta-lactam antibiotics and are a significant challenge to modern medicine. We have developed an automated classification and analysis protocol that exploits structure- and sequence ...
David Lee   +5 more
doaj   +2 more sources

Peptidase activity of beta-lactamases. [PDF]

open access: yesThe Biochemical journal, 1999
Although beta-lactamases have generally been considered as being devoid of peptidase activity, a low but significant hydrolysis of various N-acylated dipeptides was observed with representatives of each class of beta-lactamases. The kcat/Km values were below 0.1 M(-1).
Rhazi, Noureddine   +3 more
openaire   +3 more sources

Antarctic soil microbiomes encode structurally conserved and phylogenetically diverse beta‐lactamases

open access: yesiMetaOmics
Antimicrobial resistance is a major global health threat shaped not only by clinical settings but also by environmental reservoirs, in line with the One Health framework.
José Coche‐Miranda   +8 more
doaj   +2 more sources

OXA β-lactamases

open access: yes, 2014
The OXA β-lactamases were among the earliest β-lactamases detected; however, these molecular class D β-lactamases were originally relatively rare and always plasmid mediated.
Benjamin A. Evans (3115968)   +1 more
core   +7 more sources

Docking Study for New 7-Aminocephalosporinic Acid Derivatives as Potential Inhibitors for β-Lactamases [PDF]

open access: yesالمجلة العراقية للصيدلة, 2023
Background: Antibiotics with β-Lactam rings (β-Lactams), since they were discovered, have enhanced the typical treatment for bacterial infections.
Ahmed A. Saleh, Ahmed A. J. Mahmood
doaj   +1 more source

Antimicrobial resistance of gram-negative pathogens isolated from hospitalized patients in Rostov region [PDF]

open access: yesКлиническая микробиология и антимикробная химиотерапия, 2020
Objective. To evaluate resistance rates to carbapenems and III–IV generation cephalosporins among gramnegative bacteria, including production of carbapenemases and extended-spectrum beta-lactamases (ESBL). Materials and Methods.
Kutsevalova O.Yu.   +4 more
doaj   +1 more source

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