1F88:
reference: Crystal structure of rhodopsin: A G protein-coupled receptor., Palczewski K, Kumasaka T, Hori T, Behnke CA, Motoshima H, Fox BA, Le Trong I, Teller DC, Okada T, Stenkamp RE, Yamamoto M, Miyano M, Science 2000 Aug 4;289(5480):739-45. PMID: 10926528

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