title: High-resolution x-ray diffraction studies on a pure species of transfer RNA.
mesh_terms: D008274:Magnesium; D009690:Nucleic Acid Conformation; D012343:RNA, Transfer; D012441:Saccharomyces cerevisiae; D013096:Spermine; D014961:X-Ray Diffraction
chemical_list: D013096:Spermine; D012343:RNA, Transfer; D008274:Magnesium