title: The structure of the "second genetic code".
authors: M M
authors: MM
authors: Waldrop
mesh_terms: D000604:Amino Acyl-tRNA Synthetases / Q000378:metabolism*; D001665:Binding Sites; D004926:Escherichia coli / Q000201:enzymology* / Q000235:genetics; D015394:Molecular Structure; D012329:RNA, Bacterial / Q000378:metabolism*; D012345:RNA, Transfer, Amino Acid-Specific / Q000378:metabolism*; D012351:RNA, Transfer, Gln / Q000378:metabolism*
chemical_list: D012329:RNA, Bacterial; D012345:RNA, Transfer, Amino Acid-Specific; D012351:RNA, Transfer, Gln; D000604:Amino Acyl-tRNA Synthetases; C020659:glutaminyl-tRNA synthetase