title: Letter: Crystallization and preliminary x-ray diffraction studies on tyrosyl-transfer RNA synthetase from Bacillus stearothermophilus.
mesh_terms: D000604:Amino Acyl-tRNA Synthetases / Q000032:analysis* / Q000302:isolation & purification; D001407:Bacillus / Q000201:enzymology*; D002850:Chromatography, Gel; D003460:Crystallization; D004591:Electrophoresis, Polyacrylamide Gel; D006863:Hydrogen-Ion Concentration; D046911:Macromolecular Substances; D008970:Molecular Weight; D011487:Protein Conformation; D014443:Tyrosine; D014961:X-Ray Diffraction
chemical_list: D046911:Macromolecular Substances; D014443:Tyrosine; D000604:Amino Acyl-tRNA Synthetases