title: The GAM1/SNF2 gene of Saccharomyces cerevisiae encodes a highly charged nuclear protein required for transcription of the STA1 gene.
abstract: We have cloned and sequenced the GAM1 gene which is required for transcription of the STA1 gene encoding an extracellular glucoamylase in Saccharomyces cerevisiae var. diastaticus. Complementation tests indicated that GAM1 is the same gene as SNF2 which is required for derepression of the SUC2 gene encoding invertase. Accumulation of SNF2 RNA was not regulated by the GAM2 and GAM3 genes which are also required for STA1 expression. The SNF2 gene was predicted to encode a 194 kDa highly charged protein with a glutamine-rich tract. A bifunctional SNF2-lacZ fusion protein was shown by immunofluorescence microscopy to be localized to the nucleus, suggesting that the SNF2 protein is located in the nucleus.
authors.affiliation: Center for Gene Science, Hiroshima University, Japan.
authors.forename: H
authors.initials: H
authors.lastname: Yoshimoto
authors.forename: I
authors.initials: I
authors.lastname: Yamashita
mesh_terms: D000251:Adenosine Triphosphatases; D000595:Amino Acid Sequence; D001483:Base Sequence; D015152:Blotting, Northern; D002467:Cell Nucleus / Q000378:metabolism; D003001:Cloning, Molecular; D004268:DNA-Binding Proteins / Q000235:genetics* / Q000502:physiology; D005656:Fungal Proteins / Q000235:genetics* / Q000494:pharmacology; D015966:Gene Expression Regulation, Fungal; D005800:Genes, Fungal / Q000502:physiology*; D005816:Genetic Complementation Test; D005087:Glucan 1,4-alpha-Glucosidase / Q000096:biosynthesis; D008856:Microscopy, Fluorescence; D008969:Molecular Sequence Data; D009687:Nuclear Proteins; D010957:Plasmids; D015183:Restriction Mapping; D012441:Saccharomyces cerevisiae / Q000235:genetics*; D029701:Saccharomyces cerevisiae Proteins; D014157:Transcription Factors / Q000235:genetics* / Q000502:physiology; D014158:Transcription, Genetic / Q000502:physiology*; D014170:Transformation, Genetic
chemical_list: D004268:DNA-Binding Proteins; D005656:Fungal Proteins; D009687:Nuclear Proteins; D029701:Saccharomyces cerevisiae Proteins; D014157:Transcription Factors; D005087:Glucan 1,4-alpha-Glucosidase; D000251:Adenosine Triphosphatases; C499333:SNF2 protein, S cerevisiae