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Figure 7.
Figure 7. A model for the B820 subunit constructed
using the LH1 a and b structures of this study and BChl a
molecules. The structure of BChl a was adopted from the
crystal structure of LH2 complex (PDB entry 1LGH)
determined for Ps. molischianum. (a) Side view showing
the BChl a alignment in the transmembrane helical
domains and relative position of the N-terminal helix
and loop of the a-polypeptide to the helical region of the
b-polypeptide. (b) Top view of the structure in (a) from
the C terminus showing the partial overlap between the
two BChl a molecules colored in cyan.
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