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Antimicrobial Agents and Chemotherapy, July 2007, p. 2636-2638, Vol. 51, No. 7
0066-4804/07/$08.00+0 doi:10.1128/AAC.01043-06
Copyright © 2007, American Society for Microbiology. All Rights Reserved.
blaVIM-2-Harboring Integrons Isolated in India, Russia, and the United States Arise from an Ancestral Class 1 Integron Predating the Formation of the 3' Conserved Sequence
Mark A. Toleman,1*
Hemalatha Vinodh,2
Uma Sekar,2
Vijaylakshmi Kamat,2 and
Timothy R. Walsh1
Department of Medical Microbiology, University of Cardiff, Cardiff CF14 4XN, United Kingdom,1
Sri Ramachandra Medical College and Research Institute, Porur, Chennai-600 116, India2
Received 21 August 2006/
Returned for modification 5 November 2006/
Accepted 6 April 2007
The metallo-β-lactamase gene blaVIM-2 was identified in a strain of Pseudomonas aeruginosa isolated in India. The integron encoding blaVIM-2 was virtually identical to those recently found in the United States and Russia. These unusual structures are likely to have arisen from an ancestral integron predating the formation of the 3' conserved sequence.
* Corresponding author Mailing address: Department of Medical Microbiology, University of Cardiff, Heath Park, Cardiff CF14 4XN, United Kingdom. Phone: 44 (0) 29 2074 3129. Fax: 44 (0) 29 2074 2161. E-mail:
TolemanMA{at}Cardiff.ac.uk
Published ahead of print on 16 April 2007.
Antimicrobial Agents and Chemotherapy, July 2007, p. 2636-2638, Vol. 51, No. 7
0066-4804/07/$08.00+0 doi:10.1128/AAC.01043-06
Copyright © 2007, American Society for Microbiology. All Rights Reserved.
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