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Evolution of peptidoglycan biosynthesis under the selective pressure of antibiotics in Gram-positive bacteria.
Acquisition of resistance to the two classes of antibiotics therapeutically used against Gram-positive bacteria, the glycopeptides and the beta-lactams, has revealed an unexpected flexibility in theExpand
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Inhibition of the β-Lactamase BlaMab by Avibactam Improves the In Vitro and In Vivo Efficacy of Imipenem against Mycobacterium abscessus
ABSTRACT Mycobacterium abscessus pulmonary infections are treated with a macrolide (clarithromycin or azithromycin), an aminoglycoside (amikacin), and a β-lactam (cefoxitin or imipenem). The tripleExpand
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Aminoacyl-tRNA recognition by the FemXWv transferase for bacterial cell wall synthesis
Transferases of the Fem family catalyse peptide-bond formation by using aminoacyl-tRNAs and peptidoglycan precursors as donor and acceptor substrates, respectively. The specificity of FemExpand
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Quantitative high-performance liquid chromatography analysis of the pool levels of undecaprenyl phosphate and its derivatives in bacterial membranes.
Undecaprenyl phosphate is the essential lipid involved in the transport of hydrophilic motifs across the bacterial membranes during the synthesis of cell wall polymers such as peptidoglycan. A HPLCExpand
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Human- and plant-pathogenic Pseudomonas species produce bacteriocins exhibiting colicin M-like hydrolase activity towards peptidoglycan precursors.
Genes encoding proteins that exhibit similarity to the C-terminal domain of Escherichia coli colicin M were identified in the genomes of some Pseudomonas species, namely, P. aeruginosa, P. syringae,Expand
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Characterization of broad-spectrum Mycobacterium abscessus class A β-lactamase.
OBJECTIVES Imipenem and cefoxitin are used to treat Mycobacterium abscessus infections and have moderate activity against this fast-growing mycobacterium (MIC₅₀ of 16 and 32 mg/L, respectively). M.Expand
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Distribution of erythromycin esterase and rRNA methylase genes in members of the family Enterobacteriaceae highly resistant to erythromycin.
The distribution of nucleotide sequences related to ereA, ereB, and ermAM was studied by colony hybridization in 112 strains of members of the family Enterobacteriaceae that are highly resistant toExpand
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The peptidoglycan of Mycobacterium abscessus is predominantly cross-linked by L,D-transpeptidases.
Few therapeutic alternatives remain for the treatment of infections due to multiresistant Mycobacterium abscessus. Here we show that the peptidoglycans of the "rough" and "smooth" morphotypes containExpand
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Dynamics induced by β-lactam antibiotics in the active site of Bacillus subtilis L,D-transpeptidase.
β-lactams inhibit peptidoglycan polymerization by acting as suicide substrates of essential d,d-transpeptidases. Bypass of these enzymes by unrelated l,d-transpeptidases results in β-lactamExpand
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Functional and Structural Characterization of PaeM, a Colicin M-like Bacteriocin Produced by Pseudomonas aeruginosa *
Background: Pathogenic Pseudomonas aeruginosa strains produce a colicin M-like bacteriocin exhibiting peptidoglycan lipid II-degrading activity. Results: We have determined the crystal structure ofExpand
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