1FI2:
reference: Germin is a manganese containing homohexamer with oxalate oxidase and superoxide dismutase activities., Woo EJ, Dunwell JM, Goodenough PW, Marvier AC, Pickersgill RW, Nat Struct Biol 2000 Nov;7(11):1036-40. PMID: 11062559

This OCA Structure page
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