Search for dissertations about: "Blue copper proteins"
Showing result 1 - 5 of 10 swedish dissertations containing the words Blue copper proteins.
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1. Theoretical studies of blue copper proteins
Abstract : In this thesis, a critical investigation is presented about the role of mechanical strain for the electron-transfer properties of the blue copper proteins. It has been found that the structure of a realistic model complex of the oxidised blue-copper active site, optimised in vacuum with the B3LYP method, has the same trigonal cupric geometry as in the protein. READ MORE
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2. Blue copper proteins as bioelements for bioelectronic devices
Abstract : This thesis is focused on bioelements for biological electric power sources,specifically, on blue copper proteins with and without an intrinsic biocatalyticactivity, i.e. ability to reduce oxygen directly to water. These proteins, viz. READ MORE
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3. Theoretical studies of porphyrin proteins
Abstract : Different aspects of porphyrin proteins have been studied with theoretical methods. For example, we have studied: - The importance of hydrogen bonds for the discrimination between carbon monoxide and molecular oxygen by myoglobin, the oxygen carrier in muscles, modelling the active site both in vacuum and in the protein matrix - The inner-sphere reorganisation energy during electron transfer for cytochromes compared to other electron-transfer proteins, such as blue copper proteins and Fe-S clusters - The role of porphyrin distortions in the reaction mechanism of ferrochelatase, the enzyme that inserts an iron ion into protoporphyrin IX to make haem - The interaction between different metal sites in ferrochelatase In these studies we have used density functional theory, classical force field methods, and a combination of quantum chemistry and molecular mechanics. READ MORE
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4. Studies on spinach plastocyanin and mutants : Expression in Escherichia coli, folding and function
Abstract : Photosynthesis is a process in which photons from sunlight excite chlorophylls in the thylakoid membranes of plants, algae and cyanobacteria. The photo-oxidised reaction centre chlorophyll P700 is re-reduced by an electron transferred from the soluble, blue copper protein plastocyanin. READ MORE
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5. Protein Expression in Baltic Sea Blue Mussels Exposed to Natural and Anthropogenic Stress : The use of stress inducible proteins in ecotoxicological studies
Abstract : The focus of this thesis is the early detection of stress in the environment. It has been proposed that studies on the cellular level would detect stress reactions earlier in time compared to common physiological methods. READ MORE
