Abstract
Strains resistant to the toxic analogues of sulfate, selenate and chromate have been isolated. Their genetic analysis allowed us to identify four genes. One, called MET28, encodes a transcriptional factor. The three other genes, called SUL1, SUL2 and SUL3, encode proteins involved in sulfate transport. The sequence of Sul1p and Sul2p indicate that they are integral membrane proteins exhibiting, respectively, 11 and 10 transmembrane domains. Moreover, Sul1p and Sul2p share a high degree of similarity. Sulfate transport kinetic studies made with parental and mutant strains show that, as expected from genetic results, Saccharomyces cerevisiae has two high affinity sulfate transport systems. Sul3p has been shown to be involved in the transcriptional regulation of the SUL2 gene.
MeSH Terms
Amino Acid Sequence
Anion Transport Proteins
Carrier Proteins/genetics
Cloning, Molecular
Fungal Proteins/genetics
Gene Expression Regulation, Fungal
Membrane Transport Proteins
Methionine/metabolism
Molecular Sequence Data
Mutagenesis
Phenotype
Saccharomyces cerevisiae/genetics,metabolism
Saccharomyces cerevisiae Proteins
Sequence Homology, Amino Acid
Sulfates/metabolism
Transcription Factors
Chemicals
Anion Transport Proteins
Carrier Proteins
FZF1 protein, S cerevisiae
Fungal Proteins
Membrane Transport Proteins
SUL2 protein, S cerevisiae
Saccharomyces cerevisiae Proteins
Sulfates
Transcription Factors
Methionine
Authors & Affiliations
6 authors, click to expand affiliations / ORCID
Cherest H
Centre de Génétique Moléculaire, Centre National de la Recherche Scientifique, Gif-sur-Yvette, France.
Davidian J C
Thomas D
Benes V
Ansorge W
Surdin-Kerjan Y
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