Article
Relations between beta-lactamases and penicillin-binding proteins: beta-lactamase activity of penicillin-binding protein 5 from Escherichia coli.
Reviews of infectious diseases - 1 Jan 2000
Nicholas R A, Strominger J L
Abstract excerpt
The molecular mechanism of the hydrolysis of penicillin by penicillin-binding protein (PBP) 5 was investigated. Cysteine-115 had been previously implicated in the hydrolysis of the acyl-enzyme intermediate in PBP5. In studies with oligonucleotide-directed mutagenesis, the role of cysteine-115 in the mechanism of PBP5 was investigated by the mutation of this residue to either a serine or an alanine residue....
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