title: Homologous cysteine-containing sequences in tryptophanyl-tRNA synthetases from Escherichia coli and human placentas.
mesh_terms: D000595:Amino Acid Sequence; D000604:Amino Acyl-tRNA Synthetases / Q000032:analysis*; D004926:Escherichia coli / Q000201:enzymology*; D005815:Genetic Code; D006801:Humans; D007532:Isoleucine; D008715:Methionine; D008970:Molecular Weight; D010920:Placenta / Q000201:enzymology*; D014364:Tryptophan
chemical_list: D007532:Isoleucine; D014364:Tryptophan; D008715:Methionine; D000604:Amino Acyl-tRNA Synthetases