3WLV:
reference: Intersubunit Salt Bridges with a Sulfate Anion Control Subunit Dissociation and Thermal Stabilization of Bacillus sp. TB-90 Urate Oxidase., Hibi T, Hayashi Y, Fukada H, Itoh T, Nago T, Nishiya Y, Biochemistry. 2014 Jun 13. PMID: 24897238

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