Nucleic Acids Research, Vol 25, Issue 19 3912-3916, Copyright © 1997 by Oxford University Press
VA Karginov, SV Mamaev and SM Hecht
An in vitro protein synthesizing system that employs rabbit reticulocyte
lysates has been employed for protein production from mRNAs containing
nonsense (UAG) codons in the presence of misacylated suppressor tRNAs.The
system includes a misacylated Escherichia coli tRNAAlaCUA that functions at
least as efficiently as any suppressor tRNA transcript reported to date and
which has been shown not to be a substrate for (re)activation by
alanyl-tRNA synthetase.Application of the optimized system for preparation
of dihydrofolate analogs has also permitted analysis of competing
mechanisms that control the sites(s) of translation initiation.
ARTICLES
In vitro suppression as a tool for the investigation of translation initiation
Departments of Chemistry and Biology, University of Virginia, Charlottesville, VA 22901, USA.
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