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Figure 3.
Fig. 3. The Spx-  CTD heterodimer
interface. (A and B) Hydrogen bonding interactions at the dimer
interface. The backbones of Spx and CTD are colored pink
and green, respectively. Interacting residues are depicted as
sticks and are colored according to atom type. Hydrogen bonds
are depicted as dashes. (C) Interactions of cxs mutants of CTD
(V260 and Y263) and Spx (G52). These residues cluster and are
shown as blue sticks.
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