Figure 1
From: Pea PSII-LHCII supercomplexes form pairs by making connections across the stromal gap
Three-dimensional cryo-EM density map of paired C2S2M PSII-LHCII supercomplexes. (a–c) Side view (a) and end views (b,c) within the membrane plane. (d) Top view towards the luminal surface of the paired supercomplexes, rotated 90° from panel (a). Solid and dashed lines extending from the top (cyan) and bottom (yellow) supercomplexes, respectively, illustrate the ~35° rotational offset between the supercomplexes. (e) The same view as panel (d) with the top supercomplex removed, revealing the top view of the lower supercomplex’s stromal surface from the perspective of the stromal gap. The stromal connections are also displayed. (f) Structural features of the “hinge” (magenta) and “knot” (red) stromal connections shown in different orientations starting on the left with the same side view as panel (a). Contact sites to the upper and lower supercomplexes are indicated with cyan and yellow mesh densities, respectively.
