title: The structural geometry of co-ordinated base changes in transfer RNA.
mesh_terms: D001483:Base Sequence; D001665:Binding Sites; D005075:Biological Evolution; D009690:Nucleic Acid Conformation; D010649:Phenylalanine; D011487:Protein Conformation; D012343:RNA, Transfer; D012441:Saccharomyces cerevisiae / Q000032:analysis
chemical_list: D010649:Phenylalanine; D012343:RNA, Transfer