'Z-RNA'--a left-handed RNA double helix.

Abstract:

:In contrast to double-stranded DNA, there has so far been little evidence that double-stranded RNA can undergo major conformational transitions. We have investigated the conformation in different conditions of the double-stranded RNA molecule poly(G-C).poly(G-C), by NMR, circular dichroism and absorbance spectroscopy. We report here evidence obtained by these different spectroscopic techniques that poly(G-C).poly(G-C) undergoes a transition from the A-form to a left-handed Z-form in conditions of high ionic strength and at temperatures above 35 degrees C. This conformational transition may be of relevance to the biological situations in which double-stranded RNA occurs, such as in ribosomes and in some viruses.

journal_name

Nature

journal_title

Nature

authors

Hall K,Cruz P,Tinoco I Jr,Jovin TM,van de Sande JH

doi

10.1038/311584a0

subject

Has Abstract

pub_date

1984-10-11 00:00:00

pages

584-6

issue

5986

eissn

0028-0836

issn

1476-4687

journal_volume

311

pub_type

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