Effect of Low p H on Thiomethyl-β- d -Galactoside Uptake by Streptococcus lactis-Reference-Cited by-同舟云学术

Effect of Low p H on Thiomethyl-β- d -Galactoside Uptake by Streptococcus lactis

Published:1969-12 Issue:3 Volume:100 Page:1415-1416
ISSN:0021-9193
Container-title:Journal of Bacteriology
language:en
Short-container-title:J Bacteriol

Author:

Desai Pragna D.¹,Goldner M.¹

Affiliation:

1. Department of Microbiology, School of Hygiene and Faculty of Dentistry, University of Toronto, Toronto 5, Canada

Abstract

Maximal β-galactosidase activity in Streptococcus lactis was obtained at p H 7, but the maximal rate of thiomethyl-β- d -galactoside uptake was observed at p H 3.6 to 4. It is concluded that the decrease in β-galactosidase activity in intact cells at lowered p H is not due to diminished transport of β-galactoside.

Publisher

American Society for Microbiology

Subject

Molecular Biology,Microbiology

Link

https://journals.asm.org/doi/pdf/10.1128/jb.100.3.1415-1416.1969

Reference6 articles.

1. -Galactosidase of Streptococcus lactfs;Citti J. E.;J. Bacteriol.,1965

2. Lactose and maltose uptake by Streptococcus lactts;Citti J. E.;J. Dairy Sci.,1967

3. The role of permease in transport;Koch A. L.;Biochim. Biophys. Acta,1964

4. The p-D-gaLactosidase of Escherichia coil, strain K-12;Lederberg J.;J. Bacteriol.,1950

5. McKay L. L. L. A. Walter W. E. Sandine and P. R. Ellilker. 1969. Involvement of phosphoenolpyruvate in lactose utilization by group N streptococci. J. Bacteriol. ":603-610.

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1. Characterization of the double mutant, Val-177/Asn-322, of the lactose permease.;Journal of Biological Chemistry;1990-03

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3. Role of Metabolic Energy in the Transport of β-Galactosides by Streptococcus lactis;Journal of Bacteriology;1972-02