THE INTRACELLULAR LOCALIZATION AND STABILITY OF THE DIHYDROFOLATE SYNTHETASE IN PEA SEEDLINGS

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概要

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• The amount of folate compounds rapidly increased during germination of the pea. An especially high increase was observed 2 days after sowing, with a continuously increasing content during germination. Dihydrofolate synthetase [EC 6.3.2.12] activity also increased with the in-crease in the amount of folate compounds, and the maximum activity was observed at 6 days after sowing in the dark and at 8 days after sowing in the light. The dhydrofolate synthetase was localized mostly in the mitochondrial fraction and it was easily extracted from the cell particles by osmotic shock. A similar localization was also observed in spinach leaves. The enzyme which was extracted from the isolated mitochondria was relatively stable in comparison with that extracted from whole cells.

• 財団法人 学会誌刊行センターの論文

著者

• 岩井 和夫

  Research Institute for Food Science, Kyoto University

• 池田 雅充

  Research Institute for Food Science, Kyoto University

• 岩井 和夫

  Research Institute for Food Science Kyoto University

関連論文

• PURIFICATION AND PROPERTIES OF THE DIHYDROFOLATE SYNTHETASE FROM PEA SEEDLINGS
• PURIFICATION AND PROPERTIES OF THE DIHY DROFOLATE SYNTHETASE FROM SERRATIA INDICA
• THE INTRACELLULAR LOCALIZATION AND STABILITY OF THE DIHYDROFOLATE SYNTHETASE IN PEA SEEDLINGS
• Nutritional requirements for folate compounds and some enzyme activities involved in the folate biosynthesis.
• Some characteristics of the dihydrofolate synthetase from Serratia indica.
• Purification and properties of quinolinate phosphoribosyltransferase from the "shitake" mushroom (Lentinus edodes).
• The Biosynthesis of Folic Acid Compounds in Plants:V. Reaction Mechanism of the Dihydropteroate-synthesizing Enzyme from Pea Seedlings
• The Biosynthesis of Folic Acid Compounds in Plants:IV. Purification and Properties of the Dihydropteroate-synthesizing Enzyme from Pea Seedlings
• THE OCCURRENCE AND PROPERTIES OF METHYLENE-TETRAHYDROFOLATE DEHYDROGENASE IN PEA SEEDLINGS, AND INTRACELLULAR DISTRIBU-TION OF SOME FOLATE-LINKED ENZYMES IN THE PLANT
• The Biosynthesis of Folic Acid Compounds in Plants:I. Enzymatic Formation of Dihydropteroic Acid and Dihydrofolic Acid from 2-Amino-4-hydroxy-6-substituted Pteridines by Cell-free Extracts of Pea Seedlings
• The Biosynthesis of Folic Acid Compounds in Plants:III. Distribution of the Dihydropteroate-synthesizing Enzyme in Plants
• Characteristics of quinolinate phosphoribosyltransferase from the "shiitake" mushroom (Lentinus edodes).
• The Biosynthesis of Folic Acid Compounds in Plants:II. Some Properties of Dihydropteroate-synthesizing Enzyme in Pea Seedlings

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