to determine whether trna or aminoacyl-trna synthetase is responsible for spermine stimulation of rat liver ile-trna formation , homologous and heterologous ile-trna formations were carried out with escherichia coli and rat liver trna ( ile ) and their respective purified ile-trna synthetases .
C0002529
aminoacyl-trna synthetase
C0022194
ile-trna synthetases