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. Author manuscript; available in PMC: 2013 Jan 18.
Published in final edited form as: J Am Chem Soc. 2011 Dec 29;134(2):999–1009. doi: 10.1021/ja207173p

Figure 2.

Figure 2

Structural overview of the location of the flavin ring of FAD and the iron-sulfur clusters (FeS-I and FeS-II) in XDH (left) and XO (right). The 423-433 loops in the neighborhood of the flavin binding sites are depicted as pink (XDH) and green (XO) threads, respectively.