Title : The Amino Acid Changes T55A, A273P and R277C in the Beta-Lactamase CTX-M-14 Render E. coli Resistant to the Antibiotic Nitrofurantoin, a First-Line Treatment of Urinary Tract Infections.

Pub. Date : 2020 Dec 13

PMID : 33322113






5 Functional Relationships(s)
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1 The Amino Acid Changes T55A, A273P and R277C in the Beta-Lactamase CTX-M-14 Render E. coli Resistant to the Antibiotic Nitrofurantoin, a First-Line Treatment of Urinary Tract Infections. Nitrofurantoin CTX-M-14 Escherichia coli
2 Recombinant expression of CTX-M-14 and the mutated CTX-M-14 in the periplasm of E. coli revealed a significant increase in the Minimum Inhibitory Concentration (MIC) for nitrofurantoin from >=6 mug/mL (CTX-M-14) to >=512 mug/mL (mutated CTX-M-14). Nitrofurantoin CTX-M-14 Escherichia coli
3 Recombinant expression of CTX-M-14 and the mutated CTX-M-14 in the periplasm of E. coli revealed a significant increase in the Minimum Inhibitory Concentration (MIC) for nitrofurantoin from >=6 mug/mL (CTX-M-14) to >=512 mug/mL (mutated CTX-M-14). Nitrofurantoin CTX-M-14 Escherichia coli
4 Recombinant expression of CTX-M-14 and the mutated CTX-M-14 in the periplasm of E. coli revealed a significant increase in the Minimum Inhibitory Concentration (MIC) for nitrofurantoin from >=6 mug/mL (CTX-M-14) to >=512 mug/mL (mutated CTX-M-14). Nitrofurantoin CTX-M-14 Escherichia coli
5 Recombinant expression of CTX-M-14 and the mutated CTX-M-14 in the periplasm of E. coli revealed a significant increase in the Minimum Inhibitory Concentration (MIC) for nitrofurantoin from >=6 mug/mL (CTX-M-14) to >=512 mug/mL (mutated CTX-M-14). Nitrofurantoin CTX-M-14 Escherichia coli