3MMH:
reference: Structural and biochemical characterization of free methionine-R-sulfoxide reductase from Neisseria meningitidis., Gruez A, Libiad M, Boschi-Muller S, Branlant G, J Biol Chem. 2010 Aug 6;285(32):25033-43. Epub 2010 May 19. PMID: 20489204

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