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M9620253.TXT
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1996-02-26
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Document 0253
DOCN M9620253
TI Cleavage of double-stranded DNA by
'metalloporphyrin-linker-oligonucleotide' molecules: influence of the
linker.
DT 9602
AU Bigey P; Pratviel G; Meunier B; Laboratoire de Chimie de Coordination du
CNRS, Toulouse, France.
SO Nucleic Acids Res. 1995 Oct 11;23(19):3894-900. Unique Identifier :
AIDSLINE MED/96038845
AB Manganese porphyrin-linker-triple-helix-forming oligonucleotide
molecules were prepared and their ability to cleave in vitro a
double-stranded DNA target present in the HIV-1 genome was studied. The
nature of the linker is a determining factor of the cleavage efficiency.
Cleavage yields as high as 80% were observed when the linker was a
spermine residue and in the absence of a large excess of free spermine
known to stabilize triplex structures. The hydrophobic nature of
aliphatic diamine linker modified the cleaver-DNA interactions and
reduced the efficiency of DNA cleavage.
DE Antiviral Agents Base Sequence Cations, Divalent Drug Stability *DNA
Damage DNA, Viral/*METABOLISM Heat HIV-1/*GENETICS
Magnesium/PHARMACOLOGY Metalloporphyrins/CHEMISTRY/*METABOLISM
Molecular Sequence Data Molecular Structure
Oligonucleotides/CHEMISTRY/*METABOLISM Sodium/PHARMACOLOGY
Spermine/CHEMISTRY Structure-Activity Relationship Support, Non-U.S.
Gov't JOURNAL ARTICLE
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).