title: Multistranded DNA structures.
abstract: DNA oligonucleotides can form multistranded helices through either the folding of a single strand or the association of two, three or four strands of DNA. Structures of several new DNA triplexes, G-quartet DNA quadruplexes and I-motif DNA quadruplexes have been reported recently. These structures provide new insights into helix stability and folding, loop conformations and cation interactions.
authors.affiliation: Department of Chemistry and Biochemistry, University of California, Los Angeles 90095-1569, USA.
authors.forename: D E
authors.initials: DE
authors.lastname: Gilbert
authors.forename: J
authors.initials: J
authors.lastname: Feigon
mesh_terms: D001665:Binding Sites; D002412:Cations / Q000737:chemistry; D018360:Crystallography, X-Ray; D004247:DNA / Q000737:chemistry*; D054856:G-Quadruplexes; D019906:Nuclear Magnetic Resonance, Biomolecular; D009690:Nucleic Acid Conformation
chemical_list: D002412:Cations; C051802:triplex DNA; D004247:DNA