PHOTOCHEMICAL PROPERTIES OF THE NEW FLAVIN PHOSPHATE OF RHIZOPUS

Abstract

The new flavin phosphate of Rhizopus, flavin cyclic 2[image],5[image]-mononucleotide (FMN[image]), has the medium shape of a fluorescence-pH curve as compared to those of FMN and FAD. Percentage fluorescence was 95 and 83% of FMN at pH 4.3 and pH 6.9 respectively. FMN[image] failed to react as a sensitizer in dye-sensitized photopolymerization of acrylamide. FMN[image] co-added with FMN or riboflavin in equal amounts inhibited the dye-sensitized photopolymerization of acrylamide. FMN[image] underwent photolysis more slowly than FMN in some instances. These photochemical properties may be caused by conformation derived from a primary structure.