Is 3'-nucleotide rigid?
D004247:DNA; D003854:Deoxyribonucleotides; D009690:Nucleic Acid Conformation; D009711:Nucleotides; D012265:Ribonucleotides; D013816:Thermodynamics; D014961:X-Ray Diffraction
D003854:Deoxyribonucleotides; D009711:Nucleotides; D012265:Ribonucleotides; D004247:DNA