The spatial arrangement of the atoms of a nucleic acid or polynucleotide that results in its characteristic 3-dimensional shape.

Synonyms: Conformations, DNA, Conformation, Nucleic Acid, Conformations, RNA, Conformations, Nucleic Acid, DNA Conformation, DNA Conformations, Nucleic Acid Conformation, Conformation, RNA, Conformation, DNA, Nucleic Acid Conformations, RNA Conformations, RNA Conformation