Search for dissertations about: "Institutionen för naturvetenskaplig biokemi"
Showing result 11 - 15 of 90 swedish dissertations containing the words Institutionen för naturvetenskaplig biokemi.
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11. Chromatographic characterization of the human red cell glucose transporter Glut1 in the cells, in membrane vesicles and in proteoliposomes
Abstract : The human glucose transporter Glut1 is used by many cells, especially red blood cells andbrain cell, to take up glucose and other necessary metabolites. Gentle chromatographic methods can be applied for analyses of Glut1 activities in lipid environments similar to the native one. READ MORE
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12. Redesign of Alpha Class Glutathione Transferases to Study Their Catalytic Properties
Abstract : A number of active site mutants of human Alpha class glutathione transferase A1-1 (hGST A1-1) were made and characterized to determine the structural determinants for alkenal activity. The choice of mutations was based on primary structure alignments of hGST A1-1 and the Alpha class enzyme with the highest alkenal activity, hGST A4-4, from three different species and crystal structure comparisons between the human enzymes. READ MORE
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13. Modeling of enzyme kinetics on polymeric substrates by simulation : Enzymatic hydrolysis of cellulose
Abstract : Biopolymers are an essential constituent of living matter. To develop new products and processes based on enzyme production and modification and hydrolysis of biopolymers, enzymes with well understood mechanism are required. It is impossible to derive a universal analytical model for every particular enzyme/polymer system. READ MORE
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14. Structural Plasticity and Function in Cytochrome cd1 Nitrite Reductase
Abstract : Cytochrome cd1 nitrite reductase is a bifunctional enzyme, which catalyses the one-electron reduction of nitrite to nitric oxide, and the four-electron reduction of oxygen to water. The latter is a cytochrome oxidase reaction. Both reactions occur on the d1 haem iron of the enzyme. READ MORE
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15. Structural studies on aerobic and anaerobic respiratory complexes
Abstract : All respiratory pathways, whether aerobic or anaerobic, are based on formation of an electrochemical proton gradient called proton motive force (pmf) that drives ATP formation. Membrane-bound respiratory complexes translocate protons across the membrane from a region of low [H+] and negative electrical potential to a region of high [H+] and positive electrical potential. READ MORE