d-Xylulokinase and d-Ribulokinase in Higher Plants
- 1 March 1965
- journal article
- research article
- Published by Oxford University Press (OUP) in Plant Physiology
- Vol. 40 (2) , 372-378
- https://doi.org/10.1104/pp.40.2.372
Abstract
D-Xululokinase occurs in tissues of higher plants, including pea seed, spinach leaf, wheat germ, and wheat seedling. The enzyme was obtained substantially free of xylose isomerase by fractionation with ammonium sulfate. Wheat germ x-xylulokinase showed optimal activity between pH 7.0 and 7.6. The enzyme from pea meal required divalent cations (Mg++. Mn++, or Co++) and sulfhydryl groups for maximum activity. Both D-xylulose and D-ribulose were phosphorylated, but D-xylose and D-ribose were not phosphorylated by the kinase.This publication has 18 references indexed in Scilit:
- The formation of galactokinase in cells of Escherichia coli after infection with the transducing λ bacteriophageJournal of Molecular Biology, 1963
- Purification and Properties of l-XylulokinaseJournal of Biological Chemistry, 1962
- THE BIOSYNTHESIS OF CELL WALL CARBOHYDRATES: IV. FURTHER STUDIES ON CELLULOSE AND XYLAN IN WHEATCanadian Journal of Biochemistry and Physiology, 1958
- DEGRADATION OF L-ARABINOSE BY AEROBACTER AEROGENES .1. PATHWAY INVOLVING PHOSPHORYLATED INTERMEDIATES1958
- PENTOSE FERMENTATION BY LACTOBACILLUS PLANTARUM .3. RIBULOKINASE1958
- CONVERSION OF C-14-LABELED SUGARS TO L-ASCORBIC ACID IN RIPENING STRAWBERRIES .3. LABELING PATTERNS FROM BERRIES ADMINISTERED PENTOSE-1-C141958
- DEGRADATION OF L-ARABINOSE BY AEROBACTER AEROGENES .2. PURIFICATION AND PROPERTIES OF L-RIBULOKINASE1958
- PENTOSE METABOLISM IN WHEAT SEEDLINGSJournal of Biological Chemistry, 1956
- THE RÔLE OF XYLULOSE 5-PHOSPHATE IN XYLOSE METABOLISM OF LACTOBACILLUS PENTOSUSJournal of Biological Chemistry, 1956
- PURIFICATION AND PROPERTIES OF PHOSPHORIBO-ISOMERASE FROM ALFALFA1954