title: A double helix B-type geometry based on high-resolution proton NMR of single-helical DNA fragments: d(TA)5 x d(TA)5.
abstract: A single-helical B-type geometry is presented based on 1H NMR observations on d(TATA) and several other small single-helical DNA fragments. The structure is extended to one complete turn of double-helical DNA and its characteristics are compared with other known B-type structures.
mesh_terms: D009682:Magnetic Resonance Spectroscopy; D009690:Nucleic Acid Conformation; D009838:Oligodeoxyribonucleotides; D009841:Oligonucleotides; D011067:Poly dA-dT; D011089:Polydeoxyribonucleotides
chemical_list: D009838:Oligodeoxyribonucleotides; D009841:Oligonucleotides; D011089:Polydeoxyribonucleotides; D011067:Poly dA-dT