Figure 3.

Locations of regions of the peripheral stalk subunits that were deleted in the subcomplex. Subunits b, d, F₆ and OSCP are shown in magenta, orange, green, and cyan, respectively. In (A), I, II and III indicate regions that probably accommodate residues 121–190, 185–214 and 125–160 of subunits OSCP, b and d, respectively. In (B), residues 188–214 of subunit b have been modelled as an α-helix shown in purple lying antiparallel to the central α-helix. Residues 125–160 of subunit d are modelled in yellow as an extended region from residues 125–131 followed by a short α-helix (residues 132–138) approximately orthogonal to the plane of the paper and an extended region parallel to the central α-helix in the b-subunit.