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Interactions of the mutated residues in wild-type (left) and mutant (right) TyrH. A: Thr245; (B) Thr283; (C) Arg306; (D) Thr463. Hydrogen bonds are indicated by green dotted lines. In (D), the distances in angstrom from the side chain of Thr463 are given. The figure was generated using the PDB file 2TOH.
