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Apparent inhibition of glycoprotein synthesis by S.cerevisiae mating pheromones

Apparent inhibition of glycoprotein synthesis by S.cerevisiae mating pheromones Saccharomyces cerevisiae mating pheromones a and α factor strongly inhibit the incorporation of radio‐labelled glucosamine into N‐glycosylated proteins of corresponding haploid cells. This observation was erroneously interpreted as an inhibition of glycoprotein synthesis. It has turned out that α factor causes a 4–5‐fold dilution of incorporated [14C]glucosamine with non‐radioactive endogenous precursor. In the case of the [14C]chitin synthesized, which does not show inhibition by α factor, the lowering of the specific activity of the precursor is exactly compensated for by an increased rate of chitin synthesis caused by α factor. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Febs Letters Wiley

Apparent inhibition of glycoprotein synthesis by S.cerevisiae mating pheromones

Febs Letters , Volume 184 (2) – May 20, 1985

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References (15)

Publisher
Wiley
Copyright
© 2015 Federation of European Biochemical Societies
eISSN
1873-3468
DOI
10.1016/0014-5793(85)80629-3
Publisher site
See Article on Publisher Site

Abstract

Saccharomyces cerevisiae mating pheromones a and α factor strongly inhibit the incorporation of radio‐labelled glucosamine into N‐glycosylated proteins of corresponding haploid cells. This observation was erroneously interpreted as an inhibition of glycoprotein synthesis. It has turned out that α factor causes a 4–5‐fold dilution of incorporated [14C]glucosamine with non‐radioactive endogenous precursor. In the case of the [14C]chitin synthesized, which does not show inhibition by α factor, the lowering of the specific activity of the precursor is exactly compensated for by an increased rate of chitin synthesis caused by α factor.

Journal

Febs LettersWiley

Published: May 20, 1985

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