1IWA:
reference: X-ray structure of Galdieria Rubisco complexed with one sulfate ion per active site., Okano Y, Mizohata E, Xie Y, Matsumura H, Sugawara H, Inoue T, Yokota A, Kai Y, FEBS Lett 2002 Sep 11;527(1-3):33-6. PMID: 12220629

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