SEQUENCE OF THE VANC GENE OF ENTEROCOCCUS-GALLINARUM BM4174 ENCODING A D-ALANINE - D-ALANINE LIGASE-RELATED PROTEIN NECESSARY FOR VANCOMYCIN RESISTANCE

被引:131
作者
DUTKAMALEN, S
MOLINAS, C
ARTHUR, M
COURVALIN, P
机构
[1] Unité des Agents Antibactériens, Institut Pasteur
关键词
ANTIBIOTIC RESISTANCE; CELL WALL SYNTHESIS; AMPLIFICATION; GLYCOPEPTIDE; RECOMBINANT DNA; INSERTIONAL INACTIVATION;
D O I
10.1016/0378-1119(92)90302-6
中图分类号
Q3 [遗传学];
学科分类号
071007 ; 090102 ;
摘要
The amplification product obtained with DNA from vancomycin-resistant (Vm(R)) 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 Vm(R) protein (VanA) was used as a probe to clone the vanC gene of that strain. The vanC product, with a calculated M(r) of 37504, 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.
引用
收藏
页码:53 / 58
页数:6
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