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. 2022 Feb 16;8(7):eabk3139. doi: 10.1126/sciadv.abk3139

Fig. 2. Protein-protein interactions between the LH1 and RC complexes.

Fig. 2.

(A) The RC-S polypeptide occupies a deep groove spanning the periplasmic surface of the RC complex and involves residues from RC-C, RC-M, and RC-L. Its N- and C-terminal ends engage the C termini of LH1 α7 and α16 chains, respectively. Intermolecule H-bonds involving RC-S are shown in black. (B) RC-U forms a short coiled-coil spanning between the cytoplasmic surface of RC-Hc and LH1 subunit 13, with a largely hydrophobic N-terminal protrusion buried deep in the transmembrane space.