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1961•Canadian Journal of Biochemistry and PhysiologyRequires access

THE INDUCED CONCURRENT FORMATION OF α-GALACTOSIDASE AND β-GALACTOSIDASE IN ESCHERICHIA COLI B

Rose Sheinin, Bruce F. Crocker

Open publisher page 18 citations

Abstract

An investigation of the concurrent induction of α-galactosidase and β-galactosidase in Escherichia coli B has been made. It was observed that galactose and a number of α- and β-galactosides induced the biosynthesis of both enzymes. However, some α-galactosides stimulated the synthesis of only α-galactosidase and some β-galactosides induced the formation of only β-galactosidase. The significance of these observations in relation to the nature of the immediate inducer has been discussed.

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What this paper is about

An investigation of the concurrent induction of α-galactosidase and β-galactosidase in Escherichia coli B has been made. It was observed that galactose and a number of α- and β-galactosides induced the biosynthesis of both enzymes. However, some α-galactosides stimulated the synthesis of only α-galactosidase and some β-galactosides induced the formation of only β-galactosidase. The significance of these observations in relation to the nature of the immediate inducer has been discussed.

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Available abstract

An investigation of the concurrent induction of α-galactosidase and β-galactosidase in Escherichia coli B has been made. It was observed that galactose and a number of α- and β-galactosides induced the biosynthesis of both enzymes. However, some α-galactosides stimulated the synthesis of only α-galactosidase and some β-galactosides induced the formation of only β-galactosidase. The significance of these observations in relation to the nature of the immediate inducer has been discussed.

Key concepts: Galactosides, Beta-galactosidase, Galactosidases, Inducer, Escherichia coli, Galactose, Galactokinase, Enzyme

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