Mutational evidence for identity of penicillin-binding protein 5 in Escherichia coli with the major D-alanine carboxypeptidase IA activity.
AUTOR(ES)
Matsuhashi, M
RESUMO
The defect in D-alanine carboxypeptidase IA activity in the dacA11191 mutant of Escherichia coli was correlated with a defect in the release of penicillin G from penicillin-binding protein 5. The results suggest that penicillin-binding protein 5 catalyzes the major D-alanine carboxypeptidase IA activity of the wild type and that the mutation results in a defect in the deacylation step catalyzed by this enzyme.
ACESSO AO ARTIGO
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=218493Documentos Relacionados
- Identification of the Major Penicillin-Binding Proteins of Escherichia coli as d-Alanine Carboxypeptidase IA
- A mutant of Escherichia coli defective in penicillin-binding protein 5 and lacking D-alanine carboxypeptidase IA.
- Isolation of the penicillin-binding peptide from D-alanine carboxypeptidase of Bacillus subtilis.
- Mutants of Escherichia coli lacking in highly penicillin-sensitive D-alanine carboxypeptidase activity.
- Simultaneous deletion of D-alanine carboxypeptidase IB-C and penicillin-binding component IV in a mutant of Escherichia coli K12.