1QHJ:
reference: Protein, lipid and water organization in bacteriorhodopsin crystals: a molecular view of the purple membrane at 1.9 A resolution., Belrhali H, Nollert P, Royant A, Menzel C, Rosenbusch JP, Landau EM, Pebay-Peyroula E, Structure Fold Des 1999 Aug 15;7(8):909-17. PMID: 10467143

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