Nucleic Acids Research, 1977, Vol. 4, No. 8 2811-2820
© 1977
Articles |
RNA - ligand interactions:(I) magnesium binding sites in yeast tRNAPhe
Department of Biochemistry, Duke University Medical Center Durham, NC 27710, USA
Received May 20, 1977. X-ray crystallographic studies indicate that there are at least four site-specifically bound hydrated Mg2+ ions, [Mg(H2O)n]2+, in yeast tRNAPhe. The size and the octahedral coordination geometry, rather than the charge, of [Mg(H2O)n]2+ appear to be the primary reasons for the specificity of magnesium ions in site-binding and in the stabilization of the tertiary structure of tRNA.
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