Yeast strains and method for lignocellulose to ethanol production
First Claim
1. A recombinant yeast strain comprising a nucleotide sequence encoding a xylose isomerase gene and a nucleotide sequence encoding xylose transporter gene, wherein the xylose isomerase gene is SEQ ID NO 63 and the xylose transporter gene is selected from the group consisting of SEQ. ID. Nos. 64, 65, 66, 67, 68, or 69.
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Abstract
Disclosed is a method to incorporate xylose transport related genes into a yeast strain for lignocelluloses to ethanol production. More specifically, the invention relates to novel Saccharomyces cerevisiae strains NRRL Y-50463 and yeast strains having novel xylose transporter genes, the genes deposited as GenBank JF343555, GenBank JF343556, GenBank JF343557, GenBank JF343558, and GenBank JF343559. The yeast strains having said genes are deposited as Y-50465, Y-50466, Y-50746, Y-50747, Y-50748, and Y-50749.
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5 Claims
- 1. A recombinant yeast strain comprising a nucleotide sequence encoding a xylose isomerase gene and a nucleotide sequence encoding xylose transporter gene, wherein the xylose isomerase gene is SEQ ID NO 63 and the xylose transporter gene is selected from the group consisting of SEQ. ID. Nos. 64, 65, 66, 67, 68, or 69.
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2. A recombinant yeast strain having yeast strain Y-50049 as a parent strain comprising a nucleotide sequence encoding a xylose isomerase gene and a nucleotide sequence encoding xylose transporter gene, wherein the xylose isomerase gene is SEQ ID NO 63 and the xylose transporter gene is selected from the group consisting of SEQ. ID. Nos. 64, 65, 66, 67, 68, or 69.
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3. A yeast strain deposited as NRRL Y-50465, NRRL Y-50466, NRRL Y-50746, NRRL Y-50747, NRRL Y-50748 or NRRL Y-50749.
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