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New TEM variant (TEM-92) produced by Proteus mirabilis and Providencia stuartii isolates
C de Champs1, C Monne, R Bonnet
1Laboratoire de Bactériologie, Faculté de Médecine, 63001 Clermont-Ferrand Cedex, France. Christophe.DESCHAMPS@u-clermont1.fr
Antimicrobial Agents and Chemotherapy
|March 21, 2001
Abstract:
The sequences of the bla(TEM) genes encoding TEM-92 in Proteus mirabilis and Providencia stuartii isolates were determined and were found to be identical. Except for positions 218 (Lys-6) and 512 (Lys-104), the nucleotide sequence of bla(TEM-92) was identical to that of bla(TEM-20), including the sequence of the promoter region harboring a 135-bp deletion combined with a G-162-->T substitution. The deduced amino acid sequence of TEM-92 differed from that of TEM-52 by the presence of a substitution (Gln-6-->Lys) in the peptide signal.