title: Tyrosyl-tRNA synthetase of Escherichia coli B. Role of magnesium ions in the reaction catalyzed by the enzyme.
mesh_terms: D000255:Adenosine Triphosphate / Q000378:metabolism; D000604:Amino Acyl-tRNA Synthetases / Q000378:metabolism*; D002247:Carbon Isotopes; D004926:Escherichia coli / Q000201:enzymology*; D006868:Hydrolysis; D008274:Magnesium / Q000494:pharmacology*; D010759:Phosphorus Isotopes; D012343:RNA, Transfer / Q000096:biosynthesis; D013056:Spectrophotometry, Ultraviolet; D013095:Spermidine / Q000378:metabolism; D046249:Transfer RNA Aminoacylation / Q000187:drug effects; D014316:Tritium; D014443:Tyrosine / Q000378:metabolism
chemical_list: D002247:Carbon Isotopes; D010759:Phosphorus Isotopes; D014316:Tritium; D014443:Tyrosine; D000255:Adenosine Triphosphate; D012343:RNA, Transfer; D000604:Amino Acyl-tRNA Synthetases; D008274:Magnesium; D013095:Spermidine