Abstract: An object of the present invention is to provide a method for analyzing gene of an industrial yeast. The method of the present invention comprises (a) analyzing the genome sequence of the industrial yeast; and (c-1) selecting a gene of the industrial yeast encoding an amino acid sequence having 70 to 97% identity to an amino acid sequence encoded by the gene of Saccharomyces cerevisiae, or (c-2) selecting a gene of the industrial yeast consisting of a nucleotide sequence having 60 to 94% identity to the nucleotide sequence of the gene of Saccharomyces cerevisiae.

Abstract: An object of the present invention is to provide a method for analyzing gene of an industrial yeast. The method of the present invention comprises (a) determining the whole genome sequence of the industrial yeast; and (c-1) selecting a gene of the industrial yeast encoding an amino acid sequence having 70 to 97% identity to an amino acid sequence encoded by the gene of Saccharomyces cerevisiae, or (c-2) selecting a gene of the industrial yeast consisting of a nucleotide sequence having 60 to 94% identity to the nucleotide sequence of the gene of Saccharomyces cerevisiae.

Abstract: A micro array instrument is used in which an oligonucleotide based on a species- or genus-specific nucleotide sequence of subject bacteria is immobilized on a surface of a substrate. By confirming whether the oligonucleotide immobilized on the substrate has hybridized with a probe prepared from a test sample, bacteria contained in the test sample can be detected and identified easily, quickly, and accurately.

Abstract: The present invention provides (A) a method for the selection of genes participating in the desired brewing character, which comprises preparing a database compiling the data of the whole genome sequence of industrial yeast, particularly a brewing yeast used for alcoholic beverages; selecting gene participating in a desired brewing character that the brewing yeast specifically possesses; and carrying out functional analysis of the gene by disruption or overexpression; (B) a DNA array in which oligonucleotide(s) selected based on the data base compiling the data of the whole genome sequences of an industrial yeast, (C) a breeding method for constructing improved cultures achieving the desired brewing character, (D) a method for producing an alcohol or an alcoholic beverage in which productivity and quality are improved using the yeast, (E) a gene which is specific to the improved brewing yeast, and (F) a peptide encoded by the gene.

Abstract: Described herein are a novel heat-resistant .beta.-galactosyltransferase, a production process of the enzyme and a utilization method of the enzyme. The enzyme is produced preferably by produced by a microorganism belonging to the family of Actinomycetaceae, which may be selected from fungi belonging to the genus Saccharopolyspora, the genus Thermomonospora or the genus Thermoactinomvces.

Abstract: Described herein are a novel heat-resistant .beta.-galactosyltransferase, a production process of the enzyme and a utilization method of the enzyme. The enzyme is produced preferably by produced by a microorganism belonging to the family of Actinomycetaceae, which may be selected from fungi belonging to the genus Saccharopolyspora, the genus Thermomonospora or the genus Thermoactinomyces.

Abstract: Described herein are a novel heat-resistant .beta.-galactosyltransferase, a production process of the enzyme and a utilization method of the enzyme. The enzyme is produced preferably by produced by a microorganism belonging to the family of Actinomycetaceae, which may be selected from fungi belonging to the genus Saccharopolyspora, the genus Thermomonospora or the genus Thermoactinomyces.