Article ID Journal Published Year Pages File Type
2053353 FEBS Letters 2005 4 Pages PDF
Abstract

A sensor of blue light using FAD (BLUF) protein is a flavin adenine dinucleotide (FAD) based new class blue-light sensory flavoprotein. The BLUF domain of AppA was reconstituted in vitro from apoprotein and flavin adenine dinucleotide, flavin adenine mononucleotide or riboflavin. The light-induced FTIR spectra of the domain reconstituted from various flavins and the 13C-labeled apoprotein showed that identical light-induced structural changes occur in both the flavin chromophore and protein for the signaling state in all of the reconstituted holoproteins. The results showed that an adenosine 5′-dinucleotide moiety is not required for signaling-state formation in a BLUF domain.

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