1R2N: Nmr Structure Of The All-Trans Retinal In Dark-Adapted Bacteriorhodopsin
reference: The structures of the active center in dark-adapted bacteriorhodopsin by solution-state NMR spectroscopy., Patzelt H, Simon B, terLaak A, Kessler B, Kuhne R, Schmieder P, Oesterhelt D, Oschkinat H, Proc Natl Acad Sci U S A 2002 Jul 23;99(15):9765-70. Epub 2002 Jul 15. PMID: 12119389

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