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Figure 4
Packing of molecules in the crystal structures of Taq (a) and Drad (b) SSBs. The N-terminal domains are in blue and green and the C-terminal domains are in red and yellow. The blue/red molecules form one layer in the xz plane, related by the twofold axis parallel to the crystal y axis (of C2221 symmetry for Taq and of C2 symmetry for Drad); the green/yellow molecules form another layer, related by the 21 axis with respect to the previous layer. |