1VQX:
reference: Conformational changes in the phosphorylated C-terminal domain of rhodopsin during rhodopsin arrestin interactions., Kisselev OG, Downs MA, McDowell JH, Hargrave PA, J Biol Chem 2004 Dec 3;279(49):51203-7. Epub 2004 Sep 6. PMID: 15351781

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