Figure 1
Overall structure of wild-type StoMGMT. The protein is shown as a ribbon diagram with the NTD (residues 1–55) colored cyan, the connecting loop colored purple and the CTD (residues 70–156) colored green. β indicates β-strand, while h and H indicate 310-helix and α-helix, respectively. The Cys29–Cys31 disulfide bond is found in two different conformations. The sulfate ions are shown using a ball-and-stick model. H9 is ordered in the structures of the C120S and Y91F mutants. |