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An examination of factors affecting the instability of Saccharomyces cerevisiae glucan synthetase in cell free extracts by F. Leal; J. Ruiz-Herrera; J. R. Villanueva; G. Larriba is a Biochemistry, Genetics and Molecular Biology article available to read on EtoBox.

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Yeast/3(1 -3 ) glucan synthetase is stimulated and stabilized by EDTA. Sucrose protects the enzyme from selfinactivaton. Preincubation of cell free extracts at low sucrose concentrations indicates a slow transition of the enzyme towards dissociation. Transition kinetics at 30 ~ C and 0 ~ C in the presence and in the absence of sucrose are interpreted assuming that a subunit is thermolabile in the free state and that sucrose increases its stability. Magnesium is deletereous for glucan synthetase in cell-free extracts. Chaotropic agents inactivate glucan synthetase according to their capacity to solubilize and depolymerize biological compounds. Fluoride plays a special role in the activation of glucan synthetase. Its action appears to be dependent on the presence of GTP (or other nucleotides). The role of all these agents on the activity and stability of the enzyme is interpreted in a unified scheme.

Who reads An examination of factors affecting the instability of Saccharomyces cerevisiae glucan synthetase in cell free extracts?

Author

F. Leal; J. Ruiz-Herrera; J. R. Villanueva; G. Larriba

Publisher

Springer; Springer-Verlag; Springer Verlag; Springer Science and Business Media LLC; Archie Comics (ISSN 0302-8933)

Published

1984

Language

EN

Field

Biochemistry, Genetics and Molecular Biology (Life Sciences)