Patent ID: 11898173
Assignee: SK INNOVATION CO., LTD.
Field: Biotechnology (Chemistry)
Classification: CPC C | IPC C

Claim 4:
5. A recombinant strain having lactic-acid-producing ability, wherein the recombinant strain is constructed by (a) deleting (i) a GPD1 gene, which is a gene encoding an enzyme that converts dihydroxyacetone phosphate to glycerol-3-phosphate, (ii) a CYB2 gene, which is a gene encoding an enzyme that converts lactate into pyruvate, (iii) an ADH gene, which is a gene encoding an alcohol dehydrogenase, and (iv) a PDC gene, which is a gene encoding a pyruvate decarboxylase, from the acid-resistant yeast YBC strain deposited under accession number KCTC13508BP, and (b) introducing in said acid-resistant YBC strain deposited under accession number KCTC13508BP, a gene encoding a lactate dehydrogenase, wherein the gene encoding the lactate dehydrogenase is introduced at the positions of the deleted ADH gene, PDC gene and GPD1 gene, and wherein the gene encoding the lactate dehydrogenase is derived from Staphylococcus epidermidis and comprises the sequence of SEQ ID NO: 1.