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Nucleic acids symposium series (2004)

Crystallographic studies of Homo sapiens ribosomal decoding A site complexed with aminoglycosides.


PMID 17150729

Abstract

Aminoglycosides are highly effective antibacterial drugs that decrease translation accuracy by binding to the aminoacyl-tRNA decoding site (A site) of 16S ribosomal RNA. On the other hand, they are highly toxic to mammals through kidney and ear-associated illnesses by binding to ribosomal A sites. To understand the mechanism of toxicity of aminoglycosides to mammals at atomic level, crystallographic studies have been carried out with a number of Homo sapiens mitochondrial and cytoplasmic A sites complexed with aminoglycosides. Several X-ray diffraction data sets were successfully collected. Initial phases of mitochondrial A site with tobramycin and cytoplasmic A site with paromomycin were derived by the molecular replacement method. Refinements of atomic parameters are now under progress.

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