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Nucleotide and Amino Acid Sequences of the Metallo-β-Lactamase, ImiS, from Aeromonas veronii bv. sobria
Author(s) -
Timothy R. Walsh,
William A. Neville,
Milan Haran,
D A Tolson,
David Payne,
John H. Bateson,
Alasdair MacGowan,
Peter M. Bennett
Publication year - 1998
Publication title -
antimicrobial agents and chemotherapy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.07
H-Index - 259
eISSN - 1070-6283
pISSN - 0066-4804
DOI - 10.1128/aac.42.2.436
Subject(s) - amino acid , biology , aeromonas veronii , aeromonas , nucleic acid sequence , peptide sequence , vibrionaceae , open reading frame , microbiology and biotechnology , biochemistry , gene , bacteria , genetics
TheAeromonas veronii bv. sobria metallo-β-lactamase gene,imiS , was cloned. TheimiS open reading frame extends for 762 bp and encodes a protein of 254 amino acids with a secreted modified protein of 227 amino acids and a predicted pI of 8.1. To confirm the predicted sequence, purified ImiS was digested and the resulting peptides were identified, yielding an identical sequence for ImiS, with 98% identity to CphA. Both possessed the putative active-site sequence Asn-Tyr-His-Thr-Asp at positions 88 to 92, which is unique to theAeromonas metallo-β-lactamases.

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