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Sequence of the vanC gene of Enterococcus gallinarum BM4174 encoding a D-alanine:D-alanine ligase-related protein necessary for vancomycin resistance.

Authors
  • Dutka-Malen, S
  • Molinas, C
  • Arthur, M
  • Courvalin, P
Type
Published Article
Journal
Gene
Publisher
Elsevier
Publication Date
Mar 01, 1992
Volume
112
Issue
1
Pages
53–58
Identifiers
PMID: 1551598
Source
Medline
License
Unknown

Abstract

The amplification product obtained with DNA from vancomycin-resistant (VmR) Enterococcus gallinarum BM4174 and a pair of degenerate oligodeoxyribonucleotides that correspond to conserved amino acid (aa) motifs in Escherichia coli D-alanine (D-Ala):D-Ala ligases and in En. faecium VmR protein (VanA) was used as a probe to clone the vanC gene of that strain. The vanC product, with a calculated Mr of 37,504, exhibits 29 to 38% aa identity with VanA and E. coli ligases. Insertional inactivation of vanC led to Vm sensitivity of BM4174 suggesting that the gene may encode a D-Ala:D-Ala ligase of altered specificity.

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