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7wgu is a 2 chain structure with sequence from Escherichia coli. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
EFEO_ECOLI Involved in Fe(2+) uptake. Could be an iron-binding and/or electron-transfer component.[1]
References
↑ Rajasekaran MB, Nilapwar S, Andrews SC, Watson KA. EfeO-cupredoxins: major new members of the cupredoxin superfamily with roles in bacterial iron transport. Biometals. 2010 Feb;23(1):1-17. PMID:19701722 doi:10.1007/s10534-009-9262-z