Ref ID : 4546
A.A. Juknat, D. Dornemann, and H. Senger; Biosynthesis of Porphyrinogens in Etiolated Euglena gracilis Z. II. Identification of a Regulatory Pteridine. Z.Naturforsch. 43c:357-362, 1988
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A low molecular weight compound which stimulates the synthesis of porphyrinogens from PBG was isolated and purified from etiolated Euglena gracilis Z. Absorption and fluorescence excitation and emission spectra, as well as the molecular weight, revealed its structure as an unconjugated pteridine. FTIR bands and [1H] NMR signals of the purified compound were identical with those of an anthentic sample of 6-biopterin. The structural formula of this compound is given in Fig.1.