title: Sizes of two amino acyl-tRNA synthetase complexes from E. coli with their cognate tRNAs.
mesh_terms: D000604:Amino Acyl-tRNA Synthetases / Q000378:metabolism; D001126:Arginine-tRNA Ligase / Q000378:metabolism; D004926:Escherichia coli / Q000201:enzymology*; D008027:Light; D046911:Macromolecular Substances; D008970:Molecular Weight; D012343:RNA, Transfer; D012542:Scattering, Radiation; D014637:Valine-tRNA Ligase / Q000378:metabolism
chemical_list: D046911:Macromolecular Substances; D012343:RNA, Transfer; D000604:Amino Acyl-tRNA Synthetases; D001126:Arginine-tRNA Ligase; D014637:Valine-tRNA Ligase