Fig. 7.

Superposition between HutP-L-His (PDB code: 1VEA) and HutP-L-His-Mg²⁺-RNA (PDB code: 3BOY) showing structural rearrangement of HutP. C backbone chain models of the HutP of 1VEA and 3BOY are shown in orange and green, respectively. HBN and L-His are represented by stick models with labels. Important amino acid residues involved in structural rearrangement are shown by thick stick models with bold labels in 3BOY, and by thin stick models with small labels in 1VEA