Fig. 2: Potential linker pigment at the interface between the FMO complex and the RC core. | Nature Communications

Fig. 2: Potential linker pigment at the interface between the FMO complex and the RC core.

From: Molecular asymmetry of a photosynthetic supercomplex from green sulfur bacteria

Fig. 2: Potential linker pigment at the interface between the FMO complex and the RC core.The alternative text for this image may have been generated using AI.

a Potential linker bacteriochlorophyll (BChl) at the FMO and RC interface. A BChl a (BChl-A816; light green) and an MGDG (monogalactosyl diglyceride) lipid (gray) sandwiched between PscF (cyan) and PscA1 (blue) subunit. Gray surfaces are cryo-EM densities of the BChl and MGDG molecules (3.5σ). b Spatial arrangements of the BChl pigments within the FMO1 and PscA1 subunit. The BChl-A816-BChl-U3 has the shortest Mg–Mg distance (21.6 Å) among the BChl pairs within the FMO1-PscA1 subunit. Orange dashed line separates the cytoplasmic and periplasmic layers of BChl clusters.

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