Nucleotide Sequence of Aminoglycoside 6'-N-Acetyltransferase (AAC(6')) Determinant from Serratia sp. 45.
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منابع مشابه
Crystal Structure of a GCN5-Related N-acetyltransferase Serratia marcescens Aminoglycoside 3-N-acetyltransferase
The X-ray structure of a canonical GCN5-related N-acetyltransferase (GNAT), Serratia marcescens aminoglycoside 3-N-acetyltransferase, bound to coenzyme A (CoA) has been determined at 2.3 A resolution. The single domain alpha/beta protein resembles a cupped right hand wrapped around a cylinder and consists of a highly curved, six-stranded beta sheet of mixed polarity that is sandwiched between f...
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The expression of the bifunctional aminoglycoside inactivating enzyme 6'-N-aminoglycoside acetyltransferase-2"-O-aminoglycoside phosphotransferase is the most important mechanism of high-level aminoglycoside resistance in Staphylococcus and Enterococcus. The enzyme is unique because it presents two different aminoglycoside-modifying activities located in different regions of the molecule. The g...
متن کاملnovel 6'-n-aminoglycoside acetyltransferase AAC(6')-Iaj from a clinical isolate of Pseudomonas aeruginosa.
Pseudomonas aeruginosa NCGM1588 has a novel chromosomal class 1 integron, In151, which includes the aac(6')-Iaj gene. The encoded protein, AAC(6')-Iaj, was found to consist of 184 amino acids, with 70% identity to AAC(6')-Ia. Escherichia coli transformed with a plasmid containing the aac(6')-Iaj gene acquired resistance to all aminoglycosides tested except gentamicin. Of note, aac(6')-Iaj contr...
متن کاملFrequency of aminoglycoside 6'-N-acetyltransferase among Serratia species during increased use of amikacin in the hospital.
The incidence of tobramycin-resistant, gentamicin-susceptible Serratia species at the Minneapolis Veterans Administration Medical Center decreased from an average 42.1 to 2.5% (P less than 0.001) during a 4.5-year period despite the predominant use of amikacin. These organisms were shown to express a 6'-N-acetyltransferase-modifying enzyme (EC 2.3.1.82). Resistance was not shown to be plasmid m...
متن کاملR factor-mediated aminoglycoside antibiotic resistance in Pseudomonas aeruginosa: a new aminoglycoside 6'-N-acetyltransferase.
The newly introduced semisynthetic aminoglycoside antibiotics, i.e., 3',4'-dideoxykanamycin B (DKB), 6'-N-methyl DKB (6'-Me-DKB) and amikacin (AK) have been found to be effective against gram-negative pathogens including Pseudomonas aeruginosa, which are resistant to the known aminoglycoside antibiotics. We have demonstrated in our stock cultures two types of P. aeruginosa strains resistant to ...
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ژورنال
عنوان ژورنال: Chemical and Pharmaceutical Bulletin
سال: 1992
ISSN: 0009-2363,1347-5223
DOI: 10.1248/cpb.40.2473