EXAMINATION OF THE STRUCTURE OF AN UN-KNOWN GREEN FLUORESCENT COMPOUND, COMPOUND G2, ACCUMULATED IN NON-GROWING CELLS OF EREMOTHECIUM ASHBYII BY THE ADDITION OF DIMERIC DIACETYL
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概要
- 論文の詳細を見る
The addition of dimeric diacetyl to Eremothecium ashbyii caused simultaneous accumulation of two green fluorescent compounds with the inhibition of riboflavin formation in non-growing cells. One compound, referred to as Compound G1, was identified as 6, 7-dimethyl-8-ribityllumazine as reported previously and the other is referred to as Compound G2. The latter compound was considered to be 6-methyl-7-(2-hydroxy-2-methyl-3-oxobutyl)-8-ribityllumazine because a violet fluo-rescent compound, 6-methyl-7-hydroxy-8-ribityllumazine was derived from Compound G2 in the presence of p-quinone and because the known action mechanism of dimeric diacetyl as a trapping agent of possible intermediates in the biosynthetic pathway. The results indicate that an immediate intermediate to 6, 7-dimethyl-8-ribityllumazine in the biosynthetic pathway of riboflavin is 4-ribitylamino-5-amino-2, 6-dihydroxypyrimidine, whose pyrimidine portion is derived by the elimination of a dimeric diacetyl fragment from the molecule of the isolated lumazine.
- 財団法人 学会誌刊行センターの論文
著者
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満田 久輝
Laboratory of Nutritional Chemistry, Faculty of Agriculture, Kyoto University
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中島 謙二
Laboratory of Nutritional Chemistry, Faculty of Agriculture, Kyoto University
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山田 友紀子
Laboratory of Nutritional Chemistry, Faculty of Agriculture, Kyoto University
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中島 謙二
Laboratory of Nutritional Chemistry, Faculty of Agriculture, Kyoto Univeristy
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満田 久輝
Laboratory of Nutritional Chemistry, Department of Food Science and Technology, Faculty of Agriculture, Kyoto Univeristy
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