Sökning: "pentose phosphate pathway"

Visar resultat 1 - 5 av 18 avhandlingar innehållade orden pentose phosphate pathway.

  1. 1. Metabolic Engineering of the Pentose Phosphate Pathway of Xylose Fermenting Saccharomyces cerevisiae

    Författare :Björn Johansson; Teknisk mikrobiologi; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Kemiteknik och kemisk teknologi; Chemical technology and engineering; xylulokinase; pentose phosphate pathway; genetic engineering; Saccharomyces cerevisiae; xylose; Microbiology; bacteriology; virology; mycology; Mikrobiologi; bakteriologi; virologi; mykologi;

    Sammanfattning : The aim of the work presented in this thesis is the improvement of xylose fermentation performance of recombinant Saccharomyces cerevisiae strains expressing XYL1 and XYL2 from Pichia stipitis, encoding xylose reductase (XR) and xylitol dehydrogenase (XDH). A recombinant strain of S. LÄS MER

  3. 2. Structural and Functional Studies of Ribose-5-phosphate isomerase B

    Författare :Annette K. Roos; Sherry L. Mowbray; Torsten Unge; Constance Jeffery; Uppsala universitet; []
    Nyckelord :Molecular biology; Mycobacterium tuberculosis; reaction mechanism; cis-enediolate high energy intermediate; allose-6-phosphate isomerase; rare sugar; pentose phosphate pathway; Rv2465c; X-ray crystallography; Molekylärbiologi;

    Sammanfattning : Ribose 5-phosphate isomerase (Rpi) is one of the major enzymes of the pentose phosphate pathway, where it catalyses the inter-conversion of ribose 5-phosphate (R5P) and ribulose 5-phosphate. Two forms of this isomerase with no significant amino acid sequence similarity exist, RpiA and RpiB. LÄS MER

  4. 3. The GRE3 encoded aldo-keto reductase and its influence on xylose fermentation in recombinant Saccharomyces cerevisiae strains

    Författare :Karin Träff; Teknisk mikrobiologi; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Biochemical technology; Biokemisk teknik; dihydroxyacetone phosphate; xylose reductase; xylose; xylose isomerase; GRE3; Saccharomyces cerevisiae; aldo-keto reductase;

    Sammanfattning : The aim of the work presented in this thesis was to improve ethanol formation from xylose in recombinant Saccharomyces cerevisiae strains. This was achieved by decreasing the xylitol by-product formation. Gre3p is the major xylose-reducing enzyme in S. cerevisiae. LÄS MER

  5. 4. Structure-Function Studies of Enzymes from Ribose Metabolism

    Författare :C. Evalena Andersson; Sherry Mowbray; Phil Evans; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Molecular biology; activation; isomerase; kinase; potassium; product inhibition; ribose; ribose 5-phosphate; x-ray crystallography; enzyme kinetics; fluorescence spectroscopy; protein structure; Molekylärbiologi; Molecular biology; Molekylärbiologi;

    Sammanfattning : In the pentose phosphate pathway, carbohydrates such as glucose and ribose are degraded with production of reductive power and energy. Another important function is to produce essential pentoses, such as ribose 5-phosphate, which later can be used in biosynthesis of nucleic acids and cofactors. LÄS MER

  7. 5. Metabolic Engineering of Xylose-Utilising Saccharomyces cerevisiae Strains. A Closer Look at Recombinant Strains Based on the Xylose Reductase-Xylitol Dehydrogenase Pathway

    Författare :Marie Jeppsson; Teknisk mikrobiologi; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Microbiology; bacteriology; virology; mycology; Mikrobiologi; bakteriologi; virologi; mykologi; microarrays; cofactors; XK; XDH; XR; lignocellulose; xylose; ethanol; Saccharomyces cerevisiae; yeast;

    Sammanfattning : Saccharomyces cerevisiae produces ethanol efficiently from the hexose sugars in lignocellulose hydrolysates, but it can not utilise pentose sugars such as xylose and arabinose. Stable xylose-utilising S. LÄS MER