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. Author manuscript; available in PMC: 2008 Sep 18.
Published in final edited form as: J Am Chem Soc. 2007 Aug 10;129(35):10732–10740. doi: 10.1021/ja071199j

Figure 3.

Figure 3

Keystone residues in PASC. Histidines are shown in blue, Threonines are shown in pink, and the porphyrin ring of FeDPP(III) is shown in yellow; hydrogen bonds are shown as dotted lines from the Fe to N(ε) of His, and from the Thr O(γ) to N(δ) of His.