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M9650416.TXT
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1996-03-09
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Document 0416
DOCN M9650416
TI Metal-chelating inhibitors of a zinc finger protein HIV-EP1. Remarkable
potentiation of inhibitory activity by introduction of SH groups.
DT 9605
AU Fujita M; Otsuka M; Sugiura Y; Institute for Chemical Research, Kyoto
University, Japan.
SO J Med Chem. 1996 Jan 19;39(2):503-7. Unique Identifier : AIDSLINE
MED/96145184
AB HIV-EP1 is a C2H2 type zinc finger protein which binds to DNA kappa B
site present in the long terminal repeat of HIV provirus. Previously we
have reported zinc chelators having histidine--pyridine--histidine
skeleton and were successful in inhibiting the DNA binding of HIV-EP1 by
removing zinc from the zinc finger domain. Aiming at the potentiation of
the inhibitory activity of our previous zinc chelators, herein
synthesized were novel chelators comprising pyridine and
aminoalkanethiol. These showed marked inhibitory activity on the DNA
binding of HIV-EP1. In particular, one of them having a
bis(2-mercaptoethyl) amino side chain showed inhibitory activity (IC50,
approximately 4 microM) 10 times stronger than that of the strongest
inhibitor that we reported previously. It appeared that these inhibited
the DNA binding of HIV-EP1 by a mechanism distinct from that of the
previous histidine-based inhibitors.
DE Animal Base Sequence Chelating Agents/CHEMISTRY/*PHARMACOLOGY
DNA/METABOLISM DNA-Binding Proteins/*ANTAGONISTS & INHIB/METABOLISM
Mice Molecular Sequence Data NF-kappa B/METABOLISM Sulfhydryl
Compounds/*CHEMISTRY Support, Non-U.S. Gov't Zinc/*CHEMISTRY *Zinc
Fingers JOURNAL ARTICLE
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).