title: Base pairing of a transfer RNA minor constituent: geometry of the 1-methyl-4-thiouracil-9-methyladenine base pair.
mesh_terms: D000225:Adenine; D003461:Crystallography; D008779:Methylthiouracil; D008956:Models, Chemical; D009711:Nucleotides / Q000032:analysis*; D012343:RNA, Transfer; D014961:X-Ray Diffraction
chemical_list: D009711:Nucleotides; D012343:RNA, Transfer; D000225:Adenine; D008779:Methylthiouracil