1S2Z:
reference: Displacement of iron by zinc at the diiron site of Desulfovibrio vulgaris rubrerythrin: X-ray crystal structure and anomalous scattering analysis., Jin S, Kurtz DM Jr, Liu ZJ, Rose J, Wang BC, J Inorg Biochem 2004 May;98(5):786-96. PMID: 15134924

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