Fig. 2: Arrangement of the cofactors in the dimeric LH1–RC complex.
From: Asymmetric structure of the native Rhodobacter sphaeroides dimeric LH1–RC complex
a Tilted view from the periplasmic side of the membrane with PufX (orange) and proteins-U (magenta) shown by transparent cylinders. Color scheme: BChl a, red sticks; spheroidenes (group A), yellow sticks; spheroidenes (group B), orange sticks; BPhe a, magenta sticks; UQ-10, purple sticks; nonheme Fe, green sphere. b B-factor distribution of the carotenoids in the core complex with colors representing the B-values indicated in the color bar. BChl a and BPhe a molecules are colored light gray.
