Figure 1 - full size

 

Figure 1.
Fig. 1. Overall structure of TH. The -subunit domains I-IV are shown in magenta, blue, red, and cream, respectively. The -subunit domains I and II are shown in orange and pink, respectively, and domain III is shown in green. The Mo and MGD cofactors are shown as ball-and-stick models, and the three [4Fe--4S] clusters are shown as red (Fe) and yellow (S) spheres. The figure was made with BOBSCRIPT (31) and RASTER3D (32).