Fig. 4. Top-view projections of S1 and S2
LHCI–PSI supercomplexes of C. reinhardtii,
as viewed from their stromal sides. (A) Projection
of State 1 LHCI–PSI, derived from an
analysis of negatively stained particles by
electron microscopy. (B) Projection of State
2 LHCI–PSI. (C,D) Outline (black) of the pea
three-dimensional X-ray model 1qzv.pdb
emphasizing the monomeric PSI core and
the four LHCI subunits overlaid onto projections
of State 1 and State 2 LHCI–PSI,
respectively. Scale bar = 50 A.