3AK2:
reference: Crystal structure of the cambialistic superoxide dismutase from Aeropyrum pernix K1 - insights into the enzyme mechanism and stability., Nakamura T, Torikai K, Uegaki K, Morita J, Machida K, Suzuki A, Kawata Y, FEBS J. 2010 Dec 7. doi: 10.1111/j.1742-4658.2010.07977.x. PMID: 21182595

This OCA Structure page
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