The Lactate-Proton Symport of Saccharomyces cerevisiae Is Encoded by JEN1

Author:

Casal Margarida1,Paiva Sandra1,Andrade Raquel P.1,Gancedo Carlos2,Leão Cecília1

Affiliation:

1. Centro de Ciências do Ambiente, Departamento de Biologia, Universidade do Minho, 4719 Braga Codex, Portugal,1 and

2. Instituto de Investigaciones Biomédicas Alberto Sols, CSIC-UAM, 28029 Madrid, Spain2

Abstract

ABSTRACT A mutant of Saccharomyces cerevisiae deficient in the lactate-proton symport was isolated. Transformation of the mutant with a yeast genomic library allowed the isolation of the gene JEN1 that restored lactate transport. Disruption of JEN1 abolished uptake of lactate. The results indicate that, under the experimental conditions tested, no other monocarboxylate permease is able to efficiently transport lactate in S. cerevisiae .

Publisher

American Society for Microbiology

Subject

Molecular Biology,Microbiology

Reference22 articles.

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3. Utilization of short-chain monocarboxylic acids by the yeast Torulaspora delbrueckii: specificity of the transport systems and their regulation;Casal M.;Biochim. Biophys. Acta,1995

4. Lack of lactate-proton symport activity in pck1 mutants of Saccharomyces cerevisiae;Casal M.;FEMS Microbiol. Lett.,1995

5. Mechanisms regulating the transport of acetic acid in Saccharomyces cerevisiae;Casal M.;Microbiology,1996

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