Man-Wah Tsang

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Biosensors have found applications in many sectors including the food industry, where cephalosporin detection has played an important role in reducing the incidence of cephalosporin contamination, ensuring food safety, and reducing the spread of antibiotic resistance. Taking advantage of the specific interaction between β-lactamase and its cephalosporin(More)
AmpC beta-lactamase is a bacterial enzyme with great clinical impact as it mediates beta-lactam antibiotic resistance in many Gram-negative bacteria. To facilitate the structure-function relationship studies on this clinically important enzyme, we developed new strategies for production of recombinant Enterobacter cloacae P99 AmpC beta-lactamase in Bacillus(More)
Rapid emergence of class C β-lactamases has urged an immediate need for developing class C β-lactamase specific inhibitors for effective clinical treatment. To facilitate the development of effective class C β-lactamase inhibitors, we propose a new approach for a rapid analysis of the interaction of AmpC β-lactamase and its inhibitors using our recently(More)
AmpC β-lactamase confers resistance to β-lactam antibiotics in multiple Gram-negative bacteria. Therefore, identification of non-β-lactam compounds that inhibit the enzyme is considered crucial to the development of novel antibacterial therapies. Given the highly solvent-exposed active site, it is important to study the induced-fit movements and(More)
Class C β-lactamases mediate antibiotic resistance in bacteria by efficiently hydrolyzing a broad range of β-lactam antibiotics. With their clinical significance and the lack of commercially available effective inhibitors, development of class C β-lactamase inhibitors has become one of the recent hot issues in the pharmaceutical industry. In this paper, we(More)
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