title: Deoxyribonucleic acid structure: a new model.
abstract: Models of deoxyribonucleic acid (DNA) having chain directions opposite to those of the Watson and Crick model offer strikingly different alternatives for DNA structures. Satisfactory models of the B and C forms of DNA have been built. Left-handed models readily form by twisting right-handed ones, and models can be bent into tight supercoils.
mesh_terms: D002843:Chromatin / Q000648:ultrastructure; D004247:DNA; D008958:Models, Molecular; D009690:Nucleic Acid Conformation
chemical_list: D002843:Chromatin; D004247:DNA