Open AccessTransport of fructose by a proton symport in a brewing yeast
Author(s) -
Cason David T.,
SpencerMartins I.,
Uden N.
Publication year - 1986
Publication title -
fems microbiology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.899
H-Index - 151
eISSN - 1574-6968
pISSN - 0378-1097
DOI - 10.1111/j.1574-6968.1986.tb01715.x
Subject(s) - symporter , sorbose , fructose , maltose , yeast , chemistry , biochemistry , saccharomyces cerevisiae , cotransporter , brewing , sucrose , transporter , fermentation , sodium , organic chemistry , gene
Saccharomyces cerevisiae IGC4261, a brewing strain, transported fructose and sorbose but not glucose by a high‐affinity, low‐capacity proton symport. The symport was not subject to glucose repression and coexisted with the facilitated diffusion system for glucose, fructose, sorbose and other sugars. Transport by the symport was accumulative. The stoichiometry was one proton per molecule of fructose. Maltose acted as a non‐competitive inhibitor.