Three-dimensional Heteronuclear NMR Studies of RNA

Overview

Journal Nature

Specialty Science

Date 1992 Jan 9

PMID 1370345

Citations 29

Authors

E P Nikonowicz

A Pardi

Affiliations

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Abstract

Multidimensional heteronuclear NMR has revolutionized solution structure determinations of proteins. But this technique has not been applied to nucleic acids because of difficulties in the synthesis of isotopically (13C and/or 15N) labelled molecules. Here we report the application of three-dimensional heteronuclear NMR to the study of a uniformly 13C/15N or 15N-labelled RNA duplex of defined sequence. These experiments simplify resonance assignment and the analysis of proton-proton nuclear Overhauser effects (and therefore distance information) in the molecule. Our results show that it is now possible to determine the structures of larger and more complex RNAs using multidimensional heteronuclear NMR.

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