Tamara Zarubica

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Bacterial resistance to 4,6-type aminoglycoside antibiotics, which target the ribosome, has been traced to the ArmA/RmtA family of rRNA methyltransferases. These plasmid-encoded enzymes transfer a methyl group from S-adenosyl-L-methionine to N7 of the buried G1405 in the aminoglycoside binding site of 16S rRNA of the 30S ribosomal subunit. ArmA methylates(More)
Methylation of RNA by methyltransferases is a phylogenetically ubiquitous post-transcriptional modification that occurs most extensively in transfer RNA (tRNA) and ribosomal RNA (rRNA). Biochemical characterization of RNA methyltransferase enzymes and their methylated product RNA or RNA-protein complexes is usually done by measuring the incorporation of(More)
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