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. Author manuscript; available in PMC: 2012 Dec 5.
Published in final edited form as: J Phys Chem B. 2008 Jun 3;112(25):7592–7600. doi: 10.1021/jp710249d

Figure 1.

Figure 1

Superficial binding site of PPIX. The porphyrin is located within 7Å from Trp19 and forms hydrogen bonds with Lys14, Arg124, and amides of the unordered N terminal and FG loop. Notice that the porphyrin ring is not distorted.