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. Author manuscript; available in PMC: 2016 Sep 1.
Published in final edited form as: Free Radic Biol Med. 2015 May 28;86:308–321. doi: 10.1016/j.freeradbiomed.2015.05.018

Figure 1. Structures of the Mn(III) porphyrins whose catalase-like activity was assessed herein.

Figure 1

Different Mn porphyrins are studied, and except MnTBAP3− and MnTE-2-PyPhP5+, all are SOD mimics of similarly high kcat(O2.−). Their SOD-like activity is controlled by the close vicinity (ortho position indicated with number 2) of either pyridyl (Py) or imidazolyl (Im) nitrogens to the metal site which controls kinetics and thermodynamics of the reactions of those Mn complexes with reactive species [13]. The data on those compounds are listed in Tables 1 and 3.