| 摘要 |
<p>A protein consisting of the amino acid sequence represented by SEQ ID NO: 1; a protein consisting of an amino acid sequence wherein one or more amino acids in the amino acid sequence represented by SEQ ID NO: 1 have been added, deleted or substituted and complementing a mutation showing the cold-sensitivity of fermentability; a gene encoding the protein; a gene comprising a DNA consisting of the base sequence represented by SEQ ID NO: 1 or another DNA consisting of a base sequence wherein one or more DNAs in the base sequence represented by SEQ ID NO: 1 have been added, deleted or substituted and complementing a mutation showing the cold-sensitivity of fermentability; a yeast showing the cold-sensitivity of fermentability and belonging to the genus Saccharomyces wherein the above-mentioned gene on its chromosome has been inactivated; a dough containing this yeast; a process for producing bread comprising adding the yeast to a dough; and a process for producing ethanol comprising incubating the yeast in a medium, thus accumulating ethanol in the culture medium and then harvesting the ethanol from the culture medium.</p> |
