Cloning and sequencing of a gene encoding an aminoglycoside 6'-N-acetyltransferase from an R factor of Citrobacter diversus
- PMID: 2826403
- PMCID: PMC210671
- DOI: 10.1128/jb.170.1.471-473.1988
Cloning and sequencing of a gene encoding an aminoglycoside 6'-N-acetyltransferase from an R factor of Citrobacter diversus
Abstract
The aacA1 gene, which encodes a 6'-N-acetyltransferase [AAC(6')-I] mediating resistance to kanamycin, tobramycin, and amikacin, was cloned from the Citrobacter diversus R plasmid pBWH100 into the Escherichia coli vector pBR322. The complete nucleotide sequence of the gene and flanking regions was determined. A protein of approximately 21 kilodaltons was identified when the chimeric plasmid encoding the aacA1 gene was introduced into E. coli maxicells. This value is consistent with the size predicted for a protein translated from the open reading frame of the gene.
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