title: Phosphorescence from sulfur-containing bases in Escherichia coli t-RNA.
mesh_terms: D004578:Electron Spin Resonance Spectroscopy; D004926:Escherichia coli / Q000032:analysis*; D008163:Luminescent Measurements; D009711:Nucleotides / Q000032:analysis; D012329:RNA, Bacterial / Q000032:analysis*; D012343:RNA, Transfer / Q000032:analysis*; D013455:Sulfur; D013866:Thioguanine / Q000032:analysis; D013889:Thiouracil / Q000032:analysis
chemical_list: D009711:Nucleotides; D012329:RNA, Bacterial; D013889:Thiouracil; D013455:Sulfur; D012343:RNA, Transfer; D013866:Thioguanine