Nucleic Acids Research, Vol 24, Issue 15 2900-2904, Copyright © 1996 by Oxford University Press
J Chrast-Balz and R Hooft van Huijsduijnen
We have screened a panel of tetracycline (tc)-like compounds for their
potential use with tc-repressor (tetR) based gene switches. The interaction
between tc and tetR appears quite specific, as only tc itself and its close
homologues anhydro-tc and doxycycline strongly inhibited DNA binding.
However, a single tc-like compound, GR33076X, increased DNA binding of the
tetR-VP16 fusion protein, both in eukaryotic cells and in bacteria. We
provide evidence that this antagonist of tetracycline is potentially useful
for accelerated gene switching, especially in whole animals.
ARTICLES
Bi-directional gene switching with the tetracycline repressor and a novel tetracycline antagonist
Geneva Biomedical Research Institute, Geneva, Switzerland.
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