Fig. 1: Changes in pigment orientations upon incorporation into membrane discs. | Nature Communications

Fig. 1: Changes in pigment orientations upon incorporation into membrane discs.

From: Observation of dissipative chlorophyll-to-carotenoid energy transfer in light-harvesting complex II in membrane nanodiscs

Fig. 1: Changes in pigment orientations upon incorporation into membrane discs.

a Schematic illustration of the membrane disc containing a single trimeric LHCII complex (PDB 1RWT70). b Side view of the LHCII trimer. Chl a are displayed in green, Chl b in blue, luteins (Luts) in pink, neoxanthin (Neo) in purple, and violaxanthin (Vio) in orange. Roman numerals show the two pigment clusters perturbed upon disc formation. c Pigment-only side views of clusters I and II (top: I, bottom: II). d and e CD (top) and second-derivative CD spectra (bottom) of LHCII in detergent (gray) and in membrane discs (green), plotted for the Car S2 d and Chl Qy absorption range e. Stick plots indicate the absorption peak wavelengths of the pigments shown in c. The peak positions for Chls are taken from ref. 50. Purple and pink shaded regions highlight membrane-induced changes in CD for the two domains I and II.

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