摘要:
A recombinant microorganism expressing at least a heterologous enzyme of an NADH-dependent pathway for conversion of a carbon source to n-butanol, metabolic intermediate and/or a derivative thereof and capable of producing n-butanol, a metabolic intermediate and/or a derivative thereof at a high yield and related methods. The recombinant microorganism engineered to inactivate a native enzyme of one or more pathways that compete with NADH-dependent heterologous pathway, and/or to balance the NADH-dependent heterologous pathway with respect to NADH production and consumption.
摘要:
In an embodiment, there is disclosed a recombinant microbial host cell having each of the DNA molecules encoding a polypeptide or group of polypeptides that catalyze the conversion: (i) Acetyl-CoA to Acetate and CoA (conversion 1) (ii) Acetyl-CoA to Acetoacetyl-CoA and CoA (conversion 2) (iii) Acetoacetyl-CoA and Acetate to Acetoacetate and Acetyl-CoA (conversion 3.1) (iv) Acetoacetate to Acetone and CO2 (conversion 4) (v) Acetone and NAD(P)H and H+ to Isopropanol and NAD(P)+ (conversion 5) wherein at least one DNA molecule is heterologous to the microbial host cell and wherein the microbial host cell produces isopropanol. In another embodiment, a method is disclosed for the production of isopropanol including providing a recombinant microbial host cell, the host cell of (i) with a fermentable carbon substrate in a fermentation medium under conditions whereby isopropanol is produced, and recovering the isopropanol.
摘要:
The present invention provides recombinant nucleic acid constructs comprising a xylose isomerase polynucleotide, a recombinant fungal host cell comprising a recombinant xylose isomerase polynucleotide, and related methods.
摘要:
The present invention provides methods and compositions suitable for use in the conversion of xylose to xylitol and xylulose, including nucleic acid constructs, recombinant fungal host cells, and related materials.
摘要:
The present invention provides recombinant nucleic acid constructs comprising a xylose isomerase polynucleotide, a recombinant fungal host cell comprising a recombinant xylose isomerase polynucleotide, and related methods.
摘要:
The present invention provides recombinant nucleic acid constructs comprising a xylose isomerase polynucleotide, a recombinant fungal host cell comprising a recombinant xylose isomerase polynucleotide, and related methods.