Received 25 November 2008; accepted 11 August 2009. published online 22 September 2009.
Abstract
We investigated the diversity of nucleotide sequences of 297 SHV-encoding genes, based on nucleotide synonymous mutations and the presence or absence of the nonsynonymous mutation T92A. The analysis of this diversity allowed us to develop and propose a classification to differentiate the nucleotide sequence variants of the blaSHV genes.