Figure 2
Three-dimensional crystal structure of SsAT. (a) The overall architecture of SsAT. The secondary-structure elements are shown in different colours. (b) Close-up view of the four central β-strands in SsAT, highlighting the characteristic splay between β4 and β5 in the structure. Water molecules are shown as red spheres. Hydrogen-bond interactions are shown as blue dashed lines. |