FIGURE 4.

Intermolecular interactions of DF assembly. A, superimposition of the ScDF1 (wheat and blue) with ScDF2 molecule (orange and light blue). Residues Ala-155 and Pro-179 of subunit D and Pro-95 of subunit F are labeled. B, interactions in the ScDF1 molecule. The interaction of the very C terminus of ScF1 compact form with the N and C terminus of ScD1, and the interaction of the loop ²⁵IGQITPETQEK³⁵ of ScF1 with the loop between the short helix and β hairpin region of ScD1 are shown in the inset, respectively. C, ScDF2 molecule, where the ScF2 C-terminal helix is almost parallel to the N- and C-terminal helix of ScD2, is shown as schematic. Inset, interactions of the C-terminal helix of ScF2 is presented. The electron density omit map (contoured at 2σ) is shown in green mesh.