Anticodon recognition by the class Ia aaRS. (A) Left: Ball-and-stick representation of the interactions between ValRS and the tRNAVal(CAC) anticodon nucleotides (stereoview). The carbon atoms of the tRNAVal anticodon nucleotides are green. The carbon atoms of the ValRS amino acid residues that interact with the anticodon nucleotides are yellow. Right: Overview of the position of the tRNAVal anticodon nucleotides; representation as in Figure 1. (B) Left: Ball-and-stick representation of the interactions between IleRS and the tRNAIle(GAU) anticodon nucleotides (stereoview); representation same as in Figure 4A. Right: Overview of the position of the tRNAIle anticodon nucleotides; representation is as in Figure 4A. (C) Left: Ball-and-stick representation of the interactions between ArgRS and the tRNAArg(ICG) anticodon nucleotides (stereoview); representation as in Figure 4A. Right: Overview of the position of the tRNAArg anticodon nucleotides; representation as in Figure 4A.
