Fig. 4.

Molecular docking of oxygenase–ferredoxin complexes. The surface plots (side view) of the docked complexes of respective ferredoxin and terminal oxygenase components of (A) naphthalene 1,2-dioxygenase from Pseudomonas putida NCIB 9816-4, (B) biphenyl 2,3-dioxygenase from Sphingobium yanoikuyae B1 and (C) terminal oxygenase AhdA1fA2f from Sphingobium sp. PNB. In each structure, the visible α-subunits are colored in light green and blue, while the visible β-subunits are shown in dark green and slate. The ferredoxins in each complex are colored pink. Black dotted circle in each complex shows the region where the Rieske clusters of ferredoxin and oxygenase large subunit lie in close proximity for electron transport, while the same as enlarged (D, E and F) are shown in the corresponding cartoon representations. Distance between each pair of redox centre is shown in black dotted lines. (For interpretation of the references to colour in this figure legend, the reader is referred to the web version of this article.)