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Reference: Roy S, et al. (1982) Procedure for C2 deuteration of nucleic acids and determination of A psi 31 pseudouridine conformation by nuclear Overhauser effect in yeast tRNAPhe. Nucleic Acids Res 10(24):8341-9

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Abstract

Nuclear Overhauser effect (NOE) combined with semispecific deuteration provides a general strategy for identification of exchangeable protons in nucleic base pairs, and has been extended to NOEs involving purine C2 protons in tRNA. Deuterated tri-ethyl orthoformate was condensed with 5(4)-amino imidazole 4(5)-carboxamide to yield C2 deuterated hypoxanthine. C2 deuterated hypoxanthine was fed to a purine requiring mutant of yeast and C2 deuterated yeast tRNAPhe was isolated. This C2 deuterated tRNAPhe was used to identify A psi 31 and U8-A14. A psi 31 was found to be bonded through N1H. The utility of C2 deuteration in nucleic acid NMR is thus demonstrated.

Reference Type
Journal Article | Research Support, Non-U.S. Gov't | Research Support, U.S. Gov't, Non-P.H.S. | Research Support, U.S. Gov't, P.H.S.
Authors
Roy S, Papastavros MZ, Redfield AG
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