3WMM:
reference: Structure of the LH1-RC complex from Thermochromatium tepidum at 3.0 A, Niwa S, Yu LJ, Takeda K, Hirano Y, Kawakami T, Wang-Otomo ZY, Miki K, Nature. 2014 Mar 26. doi: 10.1038/nature13197. PMID: 24670637

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