title: Use of chromatofocusing in the purification of tryptophanyl-tRNA synthetase from Bacillus stearothermophilus.
mesh_terms: D000604:Amino Acyl-tRNA Synthetases / Q000302:isolation & purification*; D002852:Chromatography, Ion Exchange / Q000379:methods; D001411:Geobacillus stearothermophilus / Q000201:enzymology*; D006863:Hydrogen-Ion Concentration; D009994:Osmolar Concentration; D014369:Tryptophan-tRNA Ligase / Q000302:isolation & purification*
chemical_list: D000604:Amino Acyl-tRNA Synthetases; D014369:Tryptophan-tRNA Ligase