3UGU:
reference: Crystal Structure of p44, a Constitutively Active Splice Variant of Visual Arrestin., Granzin J, Cousin A, Weirauch M, Schlesinger R, Buldt G, Batra-Safferling R, J Mol Biol. 2012 Mar 9;416(5):611-8. Epub 2012 Jan 27. PMID: 22306737

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