We have determined the nucleotide sequence of the blaS gene encoding the carbapenem-hydrolyzing L-1 beta-lactamase from Stenotrophomonas maltophilia GN12873. Analysis of the DNA and deduced amino acid sequences identified a product of 290 amino acids. Comparisons of the L-1 amino acid sequence with those of other zinc beta-lactamases showed 88.6% identity with the L-1 enzyme from S. maltophilia IID1275 and less than 20% identity with other class B metalloenzymes.
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| http://dx.doi.org/10.1128/AAC.42.5.1245 | DOI Listing |
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