Abstract
Retbindin (Rtbdn) is a novel protein of unknown function found exclusively in the retina. Recently, our group has suggested, from in silico analysis of the peptide sequence and in vitro binding data, that Rtbdn could function to bind riboflavin (RF) and its derivatives flavin adenine dinucleotide (FAD) and flavin mononucleotide (FMN), collectively known as flavins. Here we confirm that Rtbdn is capable of flavin binding and that this characteristic can protect photoreceptors from flavin-sensitized light damage.
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