Figure 9
From: The pyrroloquinoline quinone biosynthesis pathway revisited: A structural approach
Overview of the homology model structure of PqqE. (A) General overview of PqqE shown as cartoon. (B) Surface view of the whole protein with the tunnel in the middle of the protein. Residues are color coded according to sequence conservation (white not conserved-green conserved). (C) Close up view of the putative active site near the iron-sulfur cluster, with conserved residues shown in sticks. (D) Protein surface of the putative active site, the cavity has a diameter of about 10 Å. The dashed lines are gap-regions in the alignments.