Characteristics of maltose transporter activity in an ale and large strain of the yeast Saccharomyces cerevisiae

Letters in Applied Microbiology
R M CrumplenG G Stewart

Abstract

Kinetic studies on maltose uptake by ale and larger yeasts showed lower Km and higher Vmax values than for laboratory yeasts. Eadie-Hofstee plots were biphasic and inhibition by sulphydryl reagents was consistent with low affinity uptake by a specific transporter rather than by non-specific adsorption. High affinity maltose transport by both strains was inhibited by galactose, CCCP, 2, 4,-DNP and NEM. In contrast, glucose and pCMBS inhibited high affinity transport by the ale yeast but not by the larger yeast. In the case of pCMBS the difference could result from a single amino acid change in the maltose transporter.

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Citations

Jul 5, 2001·Journal of Microbiological Methods·C Hollatz, B U Stambuk
Nov 14, 1998·Biochimica Et Biophysica Acta·C F Heredia
Apr 19, 2003·FEMS Yeast Research·B U Stambuk, P S de Araujo
Apr 21, 2010·FEMS Yeast Research·Virve VidgrenJohn Londesborough
Dec 8, 2005·Applied and Environmental Microbiology·Virve VidgrenJohn Londesborough
Sep 13, 2006·Letters in Applied Microbiology·B U StambukC R Zastrow
Sep 8, 2004·Cytometry. Part a : the Journal of the International Society for Analytical Cytology·J AchillesW Babel
Jan 27, 1999·FEMS Microbiology Letters·B U StambukP S de Araujo

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