Biological production of pentose sugars using recombinant cells
First Claim
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1. A method of producing a pentose sugar, the method comprising:
- (a) culturing recombinant cells comprising (i) a heterologous nucleic acid encoding a 1-deoxyxylulose-5-phosphate synthase and/or 1-deoxy-D-xylulose-5-phosphate reductoisomerase polypeptide and/or (ii) more than one copy of an endogenous nucleic acid encoding a 1-deoxyxylulose-5-phosphate synthase and/or 1-deoxy-D-xylulose-5-phosphate reductoisomerase polypeptide, wherein the cells are cultured under conditions suitable for producing a pentose sugar;
or(b) culturing recombinant cells comprising (i) a heterologous nucleic acid encoding a 1-deoxyxylulose-5-phosphate synthase and/or 1-deoxy-D-xylulose-5-phosphate reductoisomerase polypeptide and (ii) one or more copies of an endogenous nucleic acid encoding a 1-deoxyxylulose-5-phosphate synthase and/or 1-deoxy-D-xylulose-5-phosphate reductoisomerase polypeptide, wherein the cells are cultured under conditions suitable for producing a pentose sugar; and
(c) producing said pentose sugar.
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Abstract
The invention provides, inter alia, compositions and methods for the biological production of pentose sugars, such as 2-methylerythritol (2-ME), 1-deoxyxylulose (1-DX), and monoacetylated-2-C-methylerythritols, using recombinant cells.
36 Citations
22 Claims
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1. A method of producing a pentose sugar, the method comprising:
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(a) culturing recombinant cells comprising (i) a heterologous nucleic acid encoding a 1-deoxyxylulose-5-phosphate synthase and/or 1-deoxy-D-xylulose-5-phosphate reductoisomerase polypeptide and/or (ii) more than one copy of an endogenous nucleic acid encoding a 1-deoxyxylulose-5-phosphate synthase and/or 1-deoxy-D-xylulose-5-phosphate reductoisomerase polypeptide, wherein the cells are cultured under conditions suitable for producing a pentose sugar;
or(b) culturing recombinant cells comprising (i) a heterologous nucleic acid encoding a 1-deoxyxylulose-5-phosphate synthase and/or 1-deoxy-D-xylulose-5-phosphate reductoisomerase polypeptide and (ii) one or more copies of an endogenous nucleic acid encoding a 1-deoxyxylulose-5-phosphate synthase and/or 1-deoxy-D-xylulose-5-phosphate reductoisomerase polypeptide, wherein the cells are cultured under conditions suitable for producing a pentose sugar; and (c) producing said pentose sugar. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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Specification