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. 2020 Oct 2;11:4955. doi: 10.1038/s41467-020-18748-3

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© The Author(s) 2020

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.

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Fig. 5 — a Tentatively assigned DDM molecules (green sticks) in the LH1 outer ring. b Expanded view of a putative DDM-binding site showing the interactions with the residues in LH1 α- (gray) and β- (blue) polypeptides. All distances are in ångströms. c Phospholipid distribution in LH1-RC viewed from the periplasmic side of the membrane with the special pair (sp) positioned at the center. CL: cyan; PG: magenta. The pigment and quinone (UQ and MQ) molecules in the RC (hemes in the C-subunit were omitted for clarity) and the LH1 polypeptides are colored in gray. d Side view of the phospholipid distribution along the presumed membrane planes. Same color scheme as in c. The LH1 complex was omitted for clarity.