6533b832fe1ef96bd129aedf

RESEARCH PRODUCT

Differential expression of the invertase-encoding SUC genes in Saccharomyces cerevisiae

Almudena Nieto SoriaLucas Del Castillo AgudoRafael Sentandreu

subject

Glycoside HydrolasesGenes FungalMolecular Sequence DataSaccharomyces cerevisiaeSaccharomyces cerevisiaeRegulatory Sequences Nucleic AcidGene Expression Regulation EnzymologicPlasmidTranscription (biology)Gene Expression Regulation FungalGene expressionGeneticsRNA MessengerPromoter Regions GeneticGeneGeneticsBase Sequencebeta-FructofuranosidasebiologyNucleic acid sequenceRNA FungalPromoterGeneral Medicinebiochemical phenomena metabolism and nutritionbiology.organism_classificationMolecular biologyRegulatory sequence

description

Invertase (INV) is encoded in Saccharomyces cerevisiae by a family of genes, comprising SUC1-SUC5 and SUC7. Production of INV is highly variable, dependent on the strain and SUC gene present in the cell. The differences in INV production derive from the structure of the genes or are dependent on the genetic background of the strain. Centromeric plasmids (based on YCp50) carrying one of the SUC genes (except SUC7) were introduced into a strain (SEY2101) lacking SUC genes. The INV produced by the transformants was dependent on the individual SUC genes, and correlated with INV mRNA levels. Plasmids in which SUC2 had been placed under control of promoters from the other SUC genes, were used to transform SEY2101 cells. The amounts of INV produced by cells carrying hybrid SUC genes were in agreement with the levels expected if the promoter controlled the expression of the SUC2 structural region. It is suggested that the differences in expression are a function of the transcription efficiency of the different SUC gene promoters, based on the divergence of 5' sequences.

yearjournalcountryeditionlanguage
1992-10-12Gene
https://doi.org/10.1016/0378-1119(92)90009-e