title: X-ray diffraction studies of the RNA tetramer GpGpCpUp.
mesh_terms: D001482:Base Composition; D009690:Nucleic Acid Conformation; D009841:Oligonucleotides; D009843:Oligoribonucleotides; D014961:X-Ray Diffraction
chemical_list: D009841:Oligonucleotides; D009843:Oligoribonucleotides; C033021:GpGpCpUp