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Figure 5.
Figure 5 Structure of the icosahedral assembly of LHC-II. (a)
View of the whole assembly along a twofold symmetry axis,
overlaid on a T = 1 icosahedral lattice (white line).
Polypeptides are drawn in a ribbon representation (gold) and
chlorophylls are drawn in CPK representation (green). (b)
Enlarged view showing the relative positions of neighbouring
trimers. Each subunit of the protein is composed of three
transmembrane helices (A, B and C) and a short helix (D) located
near the lumenal surface of the membrane and 12 chlorophyll
molecules (shown as a wire model). The shaded arc represents a
hypothetical hydrophobic region of the lipid-detergent bilayer.
(a) was drawn with VMD (Humphrey et al., 1996[Humphrey, W.,
Dalke, A. & Schulten, K. (1996). J. Mol. Graph. 14, 33-38.]) and
POV-Ray ([148]http://www.povray.org ) and (b) with MOLSCRIPT
(Kraulis, 1991[149] [Kraulis, P. J. (1991). J. Appl. Cryst. 24,
946-950.]-[150][bluearr.gif] ) and RASTER3D (Merritt & Murphy,
1994[151] [Merritt, E. A. & Murphy, M. E. P. (1994). Acta Cryst.
D50, 869-873.]-[152][bluearr.gif] ).
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