Publikation: Structure of a novel flavin chromophore from Avena coleoptiles, the possible 'blue light' photoreceptor
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A yellow chromophore has been isolated from Avena coleoptiles grown in the dark. It had previously been shown by Zenk [Zenk, M. H. (1967) Z. Pfanzenphysiol. 56, 122- 140] to be a flavin of still unidentified structure, and had been suggested to be the "b1ue light" photoreceptor in this organism. The structure of this flavin (Fl-X) has been identified as 5 -malonylriboflavin by a combination of physicochemical techniques, and by its identity with a sample obtained synthetically. The 5 -malonylester linkage is relatively labile towards hydrolysis and photolysis, it isomerizes to an equilibrium mixture containing probably the 4' isomer. The electronic spectra of 5 -malonylriboflavin (absorption and fluorescence) are practically identical to those of normal riboflavin (vitamin B2).
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GHISLA, Sandro, Rudi MACK, Gunter BLANKENHORN, Peter HEMMERICH, Eberhard KRIENITZ, Thomas KUSTER, 1984. Structure of a novel flavin chromophore from Avena coleoptiles, the possible 'blue light' photoreceptor. In: European Journal of Biochemistry. 1984, 138(2), pp. 339-344. ISSN 0014-2956. eISSN 1432-1033. Available under: doi: 10.1111/j.1432-1033.1984.tb07920.xBibTex
@article{Ghisla1984Struc-7604, year={1984}, doi={10.1111/j.1432-1033.1984.tb07920.x}, title={Structure of a novel flavin chromophore from Avena coleoptiles, the possible 'blue light' photoreceptor}, number={2}, volume={138}, issn={0014-2956}, journal={European Journal of Biochemistry}, pages={339--344}, author={Ghisla, Sandro and Mack, Rudi and Blankenhorn, Gunter and Hemmerich, Peter and Krienitz, Eberhard and Kuster, Thomas} }
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