Very general formation of tetrahydropterincation radicals during reaction of iron porphyrins with tetrahydropterins: model for the corresponding NO-synthase reaction
Literature Information
Delphine Mathieu, Yves-Michel Frapart, Jean François Bartoli, Jean-Luc Boucher, Pierrette Battioni, Daniel Mansuy
Electron transfer from tetrahydropterins to iron porphyrins, with formation of intermediate tetrahydropterin cation radicals, is a very general reaction that was shown to occur not only with tetrahydrobiopterin, as originally found in NO-synthases, but also with another important biological cofactor, tetrahydrofolate, and various iron porphyrins, either in their ferric state, or in the FeIIO2 state, as in the first model of the corresponding NO-synthase reaction described in this paper.
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