Synthesis, incorporation efficiency, and stability of disulfide bridged functional groups at RNA 5'-ends

Gerhard Sengle, Andreas Jenne, Paramjit S. Arora, Burckhard Seelig, James S. Nowick, Andres Jäschke, Michael Famulok

Research output: Contribution to journalArticlepeer-review


Modified guanosine monophosphates have been employed to introduce various functional groups onto RNA 5'-ends. Applications of modified RNA 5'-ends include the generation of functionalized RNA libraries for in vitro selection of catalytic RNAs, the attachment of photoaffinity-tags for mapping RNA-protein interactions or active sites in catalytic RNAs, or the non-radioactive labeling of RNA molecules with fluorescent groups. While in these and in similar applications a stable linkage is desired, in selection experiments for generating novel catalytic RNAs it is often advantageous that a functional group is introduced reversibly. Here we give a quantitative comparison of the different strategies that can be applied to reversibly attach functional groups via disulfide bonds to RNA 5'-ends. We report the preparation of functional groups with disulfide linkages, their incorporation efficiency into an RNA library, and their stability under various conditions. Copyright (C) 2000 Elsevier Science Ltd.

Original languageEnglish (US)
Pages (from-to)1317-1329
Number of pages13
JournalBioorganic and Medicinal Chemistry
Issue number6
StatePublished - Jun 2000

ASJC Scopus subject areas

  • Biochemistry
  • Molecular Medicine
  • Molecular Biology
  • Pharmaceutical Science
  • Drug Discovery
  • Clinical Biochemistry
  • Organic Chemistry


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