Post-synthetically Ligated Ribozymes:  An Alternative Approach to Iterative Solid-Phase Synthesis

Autor: Bellon, L., Workman, C. T., Jarvis, T. C., Wincott, F. E.
Zdroj: Bioconjugate Chemistry; March 26, 1997, Vol. 8 Issue: 2 p204-212, 9p
Abstrakt: To improve the overall yield of ribozyme synthesis, a convergent approach, based on the post-synthetic formation of an amino linker between two half-ribozymes was investigated. Borane·pyridine-mediated reductive amination of 3‘-phosphoglycaldehyde-5‘-half-ribozymes with 5‘-aminohexyl-3‘-half-ribozymes generated the corresponding amino-linked ribozymes in yields >77% on different scales. The investigation of a variety of reducing agents is discussed together with a kinetic analysis of the selected coupling reaction. These post-synthetically ligated ribozymes exhibited slightly reduced in vitro catalytic activity and cell efficacy.
Databáze: Supplemental Index