7.5 tRNAs are charged with amino acids by synthetases Class I(Glu-tRNA synthetase) Ca‖(p# NA synthetase) Figure 7 12 Crystal structures show that class I and class Ii aminoacyl-tRNA synthetases bind the opposite faces of their ERNA Substrates. The tRNA is shown in red, and the protein in blue. Photographs kindly provided by Dino moras 消当Figure 7.12 Crystal structures show that class I and class II aminoacyl-tRNA synthetases bind the opposite faces of their tRNA substrates. The tRNA is shown in red, and the protein in blue. Photographs kindly provided by Dino Moras. 7.5 tRNAs are charged with amino acids by synthetases