Figure 6
From: Mapping the key residues of SufB and SufD essential for biosynthesis of iron-sulfur clusters
Putative sulfur tunnel ranging through the β-helix core domain of SufB. (a) Left panel, E. coli SufB. Right panel, M. mazei SufB (PDB code: 4DN7). The tunnels were detected using CAVER 3.0142,43,44 with a minimum probe radius of 1.04 Å. The tunnels are shown as green mesh. Critical amino acid residues are indicated in sphere models. (b) Close-up view of the hydrophilic tunnel in E. coli SufB. The orientation is the same as in (a) upper left panel. Amino acid residues surrounding the tunnel are depicted in stick models and labeled.
