1XSO:
reference: Three-dimensional structure of Xenopus laevis Cu,Zn superoxide dismutase b determined by X-ray crystallography at 1.5 A resolution., Carugo KD, Battistoni A, Carri MT, Polticelli F, Desideri A, Rotilio G, Coda A, Wilson KS, Bolognesi M, Acta Crystallogr D Biol Crystallogr. 1996 Jan 1;52(Pt 1):176-88. PMID: 15299740

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