Evidence that genomic and antigenomic RNA self-cleaving elements from hepatitis delta virus have similar secondary structures.

Journal Article

The two sequences that define the self-cleaving elements from the genomic and antigenomic RNA of hepatitis delta virus were folded into secondary structures with similar features. Evidence in support of the two models was obtained from limited ribonuclease digestion of genomic and antigenomic RNA fragments containing the sequence 3' of the cleavage site. Under conditions where the rates of self-cleavage are enhanced by addition of 5 M urea (2-10 mM Mg2+ at 37 degrees C), ribonucleases T1, U2, A and V1 generated digestion patterns consistent with the proposed RNA structures. The evidence for a relatively stable structure in urea when Mg2+ is present suggests that denaturant-enhanced rates of self-cleavage could result from destabilization of competing inactive structures.

Full Text

Duke Authors

Cited Authors

  • Rosenstein, SP; Been, MD

Published Date

  • October 11, 1991

Published In

Volume / Issue

  • 19 / 19

Start / End Page

  • 5409 - 5416

PubMed ID

  • 1923826

International Standard Serial Number (ISSN)

  • 0305-1048

Language

  • eng

Conference Location

  • England