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Recent Advances of DNA Tetrahedra for Therapeutic Delivery and Biosensing.

Author(s): Copp W, Pontarelli A, Wilds CJ

The chemical and self-assembly properties of nucleic acids make them ideal for the construction of discrete structures and stimuli-responsive devices for a diverse array of applications. Amongst the various three-dimensional assemblies, DNA tetrahedra are o...

Article GUID: 33506614
AGT Activity Towards Intrastrand Crosslinked DNA is Modulated by the Alkylene Linker.

Author(s): O'Flaherty DK, Wilds CJ

Chembiochem. 2017 12 05;18(23):2351-2357 Authors: O'Flaherty DK, Wilds CJ

Article GUID: 28980757
O4 -Alkylated-2-Deoxyuridine Repair by O6 -Alkylguanine DNA Alkyltransferase is Augmented by a C5-Fluorine Modification

Author(s): Lauralicia Sacre

Oligonucleotides containing various adducts, including ethyl, benzyl, 4-hydroxybutyl and 7-hydroxyheptyl groups, at the O4 atom of 5-fluoro-O4 -alkyl-2'-deoxyuridine were prepared by solid-phase synthesis. UV thermal denaturation studies demonstrated th...

Article GUID: 29243336
Title:O4 -Alkylated-2-Deoxyuridine Repair by O6 -Alkylguanine DNA Alkyltransferase is Augmented by a C5-Fluorine Modification
Authors:Lauralicia Sacre
Link:https://pubmed.ncbi.nlm.nih.gov/29243336/
DOI:10.1002/cbic.201700660
Category:Chembiochem
PMID:29243336
Dept Affiliation: CERMM
1 Department of Chemistry and Biochemistry and, Centre for Research in Molecular Modeling (CERMM), Concordia University, 7141 Sherbrooke St. West, Montréal, Québec, H4B 1R6, Canada.
2 Present address: Howard Hughes Medical Institute, Department of Molecular Biology and, Center for Computational and Integrative Biology, Massachusetts General Hospital, 185 Cambridge Street, Boston, MA, 02114, USA.

Description:

Oligonucleotides containing various adducts, including ethyl, benzyl, 4-hydroxybutyl and 7-hydroxyheptyl groups, at the O4 atom of 5-fluoro-O4 -alkyl-2'-deoxyuridine were prepared by solid-phase synthesis. UV thermal denaturation studies demonstrated that these modifications destabilised the duplex by approximately 10 °C, relative to the control containing 5-fluoro-2'-deoxyuridine. Circular dichroism spectroscopy revealed that these modified duplexes all adopted a B-form DNA structure. O6...