Nucleic Acids Research, Vol 25, Issue 10 2030-2031, Copyright © 1997 by Oxford University Press
J Vogel, WR Hess and T Borner
Lariat intermediates of a group II intron were investigated via RT-PCR.
Several reverse transcriptases appeared capable of reading through a
branched nucleotide. A new method has been established that yields precise
information about the location of the branch point within an intron. As an
extension of our approach, antisense transcripts of the previously cloned
PCR products were successfully used in RNase Protection Assays, providing a
tool for quantification of splicing intermediates. Application of the
method presented to other self- splicing introns as well as introns in
nuclear pre-mRNAs is envisaged.
ARTICLES
Precise branch point mapping and quantification of splicing intermediates
Department of Biology, Humboldt University, Chausseestrasse 117, 10115 Berlin, Germany. joerg=vogel@rz.hu-berlin.de
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