2D2A:
reference: Crystal structure of Escherichia coli SufA involved in biosynthesis of iron-sulfur clusters: Implications for a functional dimer., Wada K, Hasegawa Y, Gong Z, Minami Y, Fukuyama K, Takahashi Y, FEBS Lett 2005 Dec 5;579(29):6543-8. Epub 2005 Nov 15. PMID: 16298366

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