POLYPEPTIDE HAVING D-LACTATE DEHYDROGENASE ACTIVITY, POLYNUCLEOTIDE ENCODING POLYPEPTIDE, AND PROCESS FOR PRODUCTION OF D-LACTIC ACID

摘要

FIELD: chemistry.SUBSTANCE: invention relates to biotechnology. A disclosed polypeptide having the amino acid sequence which has a sequence identity of not less than 80% to the amino acid sequence shown in SEQ ID NO: 1 or 2, revealed in description, which polypeptide has a capable of expressing the polynucleotide activity. Also a polynucleotide encoding D-lactate dehydrogenase originated from DNA construct in which the polynucleotide and a promoter capable of expressing the polynucleotide are linked is introduced. Also described a transformant for production of lactic acid, or transformed yeast, in which the polynucleotide or the DNA construct is introduced. A method of producing D-lactic acid, which comprises the step of culturing the said transformant.EFFECT: transformant capable of highly producing D-lactic acid compared to the D-lactic acid produced with host cell.15 cl, 2 dwg, 4 tbl, 13 ex