Characterization of vanA-containing Enterococcus faecium isolates carrying Tn5397-like and Tn916/Tn1545-like transposons in wild boars (Sus Scrofa).

Characterization of vanA-containing Enterococcus faecium isolates carrying Tn5397-like and Tn916/Tn1545-like transposons in wild boars (Sus Scrofa). Research Abstract Details 

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Characterization of vanA-containing Enterococcus faecium isolates carrying Tn5397-like and Tn916/Tn1545-like transposons in wild boars (Sus Scrofa). Abstract Text:

Patricia Poeta,Daniela Costa,Gilberto Igrejas,Beatriz Rojo-Bezares,Yolanda ,Myriam Zarazaga,Fernanda Ruiz-Larrea,Jorge Rodrigues,Carmen Torres,

The presence of vanA-containing Enterococcus faecium isolates was demonstrated in two of 67 fecal samples (3%) of healthy wild boars recovered in Portugal. One isolate per sample was studied further (E. faecium PG5V and PG48V). The mechanisms of resistance for other antibiotics were analyzed in these two vancomycin-resistant isolates, as well as the presence of genes related with virulence factors. The tet(M), tet(L), and erm(B) genes, associated with tetracycline or erythromycin resistance, were identified in both isolates, and the presence of aph(3')-IIIa gene (associated with kanamycin resistance) was detected in one of them. E. faecium PG48V exhibited an ampicillin minimum inhibitory concentration (MIC) of 64 microg/ml and showed eight amino acid substitutions in the carboxy-terminal end of the PBP5 protein (461Q --> K, 470H --> Q, 485M --> A, 496N --> K, 499A --> T, 525E --> D, 586V --> L, and 629E --> V) with respect to the reference sequence (GenBank accession number X84860). The purK-6 allele was identified in isolate PG48V, which also harbored the cylL(L)L(S), entA, and entB genes, encoding cytolysin, enterocin A, and enterocin B, respectively. The purK-3 allele was found in the PG5V isolate. The two vanA-containing isolates harbored the Tn916/Tn1545-like mobile element, and the Tn5397-like transposon was also found in isolate PG48V. The intestinal tract of wild boars could be a reservoir of vanA-containing enterococci.

Characterization of vanA-containing Enterococcus faecium isolates carrying Tn5397-like and Tn916/Tn1545-like transposons in wild boars (Sus Scrofa). Publishing Authors By Initials

P Poeta,D Costa,G Igrejas,B Rojo-Bezares,Y ,M Zarazaga,F Ruiz-Larrea,J Rodrigues,C Torres,

For similar biological factors: toxins, biological: virulence factors research abstracts see: biological factors: toxins, biological: virulence factors research

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Characterization of vanA-containing Enterococcus faecium isolates carrying Tn5397-like and Tn916/Tn1545-like transposons in wild boars (Sus Scrofa). Journal Published:

PUBLICATION TYPE: Research Support, Non-U.S. Gov

Journal: Microbial drug resistance (Larchmont, N.Y.)

VOLUME: 13

Page Numbers: 151-6

Journal Abbreviation: Microb. Drug Resist.

ISSN: 1076-6294

DAY: 29

MONTH: 11

YEAR: 2007

Characterization of vanA-containing Enterococcus faecium isolates carrying Tn5397-like and Tn916/Tn1545-like transposons in wild boars (Sus Scrofa). Information

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LANGUAGE: eng

NlmUniqueID: 9508567

Characterization of vanA-containing Enterococcus faecium isolates carrying Tn5397-like and Tn916/Tn1545-like transposons in wild boars (Sus Scrofa). Keywords Mesh Terms:

KEYWORDS: Virulence Factors

MESH TERMS: genetics

Chemical & Substance for Abstract: Characterization of vanA-containing Enterococcus faecium isolates carrying Tn5397-like and Tn916/Tn1545-like transposons in wild boars (Sus Scrofa). Information

Substance Name: VanA ligase, Bacteria

Registry Number: EC 6.1.-

Grant and Affiliation Information for Characterization of vanA-containing Enterococcus faecium isolates carrying Tn5397-like and Tn916/Tn1545-like transposons in wild boars (Sus Scrofa).

AFFILIATION: University of Trás-os-Montes and Alto Douro, Veterinary Science Department, Vila Real, Portugal.

Country: United States

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MEDLINETA: Microb Drug Resist

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