Journal
NUCLEIC ACIDS RESEARCH
Volume 30, Issue 11, Pages 2307-2315Publisher
OXFORD UNIV PRESS
DOI: 10.1093/nar/30.11.2307
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Funding
- NCI NIH HHS [CA35635, R01 CA035635] Funding Source: Medline
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We describe the design, synthesis and biophysical characterization of a novel DNA construct in which a folded quadruplex structure is joined to a standard double helix. Circular dichroism, gel electrophoresis, three-dimensional UV melting and differential scanning calorimetry were all used to characterize the structure. Rigorous molecular dynamics simulations were used to build a plausible atomic-level structural model of the DNA construct. This novel DNA construct provides a model for the duplex-quadruplex junction region at the end of chromosomal DNA and offers a system for the study of structure-selective ligand binding.
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