1ZCP:
reference: The crystal structure of TrxA(CACA): Insights into the formation of a [2Fe-2S] iron-sulfur cluster in an Escherichia coli thioredoxin mutant., Collet JF, Peisach D, Bardwell JC, Xu Z, Protein Sci 2005 Jul;14(7):1863-9. PMID: 15987909

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