Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 5 of 5 for “"P-enzymes"”.
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How do metalloenzymes propagate and control chemical reactions?
<p>Enzymes control and propagate a dizzying array of chemical reactions, including radical reactions and reactions cleaving carbon-carbon bonds. Metalloenzymes, which contain a metal cofactor, are particularly adept at propagating these reactions. This thesis focuses on several metalloenzymes; each …
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Direct Single Molecule Imaging of Enhanced Diffusion for Enzymes and Enzyme-conjugated Dna origami
<p>Enzymes have been shown to diffuse faster in the presence of their substrates. Recently, we revealed new insights into this process of enhanced diffusion using single-particle tracking (SPT) with total internal reflection fluorescence (TIRF) microscopy. We found that the mobility of individual …
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Effect of biofertilizers on phosphorus nutrition and grain yield of des chickpea (Cicer arietinum L.) grown in different agro-ecologies
South African soils are predominantly acidic and have high levels of Al and Fe, giving a higher P sorption capacity and low P levels. Consequently, soil fertility has become a major constraint in South Africa’s farming, thereby threatening crop production and food security. Literature reveals, …
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Adapting Proteins for Clinical and Industrial Use
<p>Enzymes are powerful tools that are capable of catalyzing reactions with high specificity and efficiency. Many naturally occurring enzymes are used as tools in industry and medicine, from food additives to pharmaceuticals to biofuel production. Protein engineering is used to make enzymes more …
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Escherichia coli 2-oxoglutarate dehydrogenase multienzyme complex: e1 and e2 substrate specificty, e1 carboligase activity, and e2 interchain succinyl transfer
… of OGDHc (o) and pyruvate dehydrogenase (p) enzymes were constructed, suggesting that a different component is the "gatekeeper" for specificity for these two multienzyme complexes in bacteria, E1 p for pyruvate but E2o for 2-OG. Although His298Asp E1o accepted 2-OV, reconstitution of the …