Energetic Selection of Topology in Ferredoxins
Figure 3
Fold topology in a ferredoxin fold.
Right/Left fold configuration can be defined with an outlier, by orienting the outlier cysteine along the z-axis and iron-sulfur cluster being at the origin. A ferredoxin fold, with a conserved sequence CxxCxxC with an outlier cysteine, can create either right or left topological configuration. Right-handed fold is shown.