2KV1:
reference: Insights into function, catalytic mechanism, and fold evolution of selenoprotein methionine sulfoxide reductase B1 through structural analysis., Aachmann FL, Sal LS, Kim HY, Marino SM, Gladyshev VN, Dikiy A, J Biol Chem. 2010 Oct 22;285(43):33315-23. Epub 2010 Jul 5. PMID: 20605785

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