Regulation of the redox potentials of flavodoxins: modification of the flavin binding site
نویسنده
چکیده
Introduction The flavodoxins are a group of small proteins found in micro-organisms and eukaryotic algae that function to transfer electrons at low redox potential between other redox proteins in reactions such as nitrogen fixation and the photosynthetic reduction of NADP’ [ 1-41. They contain a single molecule of FMN bound strongly but non-covalently to the protein. The flavin is reduced in two one-electron steps, first to the neutral semiquinone and then to the hydroquinone anion.
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