Solution Structure of a Locked Nucleic Acid Modified Quadruplex: Introducing the V4 Folding Topology.
Nielsen, J.T., Arar, K., Petersen, M.(2009) Angew Chem Int Ed Engl 48: 3099
- PubMed: 19308940 
- DOI: https://doi.org/10.1002/anie.200806244
- Primary Citation of Related Structures:  
2WCN - PubMed Abstract: 
Sharp curves: The structure of a locked nucleic acid modified telomeric sequence from Oxytricha nova displays a remarkable folding topology, distinct from the native O. nova quadruplex. Each guanine stretch folds back in a V-shaped turn that puts the first and fourth guanines in the same tetrad, looping over a tetrad with a sharp turn in the DNA backbone, showing how subtle interplay between sequence and conformation defines the folding topology.
Organizational Affiliation: 
Nucleic Acid Center, Department of Physics and Chemistry, University of Southern Denmark, Campusvej 55, 5230 Odense M, Denmark.