Sökning: "photosynthetic reaction centre"

Visar resultat 1 - 5 av 9 avhandlingar innehållade orden photosynthetic reaction centre.

  1. 1. Intermediate State Stabilisation in Enzyme Catalysis Structural studies of two serine proteases and a photosynthetic reaction centre

    Författare :Gergely Katona; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; photosynthetic reaction centre; X-ray crystallography; structural mechanism; enzyme kinetics; serine protease; enzyme intermediate; enzyme catalysis;

    Sammanfattning : Enzymes play a key role in every organisms life. They catalyse chemical reactions and may also respond to external stimulus. The reoccurring theme of this thesis is how biologically relevant information can be gleaned from X-ray structures of the enzymes. LÄS MER

  3. 2. X-ray free-electron laser based methods for structural and ultrafast dynamics studies of a photosynthetic reaction centre

    Författare :David Arnlund; Göteborgs universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; WAXS; wide-angle x-ray scattering; XFEL; x-ray free-electron laser; reaction center; structural biology; ultrafast dynamics;

    Sammanfattning : Life on earth is fuelled by the energy of sunlight, which must first be captured and converted into a chemical energy form useful to the cell. This process is known as photosynthesis and the major pathway of this energy conversion is via photosynthetic reaction centres. LÄS MER

  4. 3. Big Lessons from Small Bacteria : Following Photo-driven Processes in Photosynthetic Systems with Multidimensional Spectroscopy

    Författare :Egle Bukarte; Kemisk fysik; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Two-dimensional electronic spectroscopy; Ultrafast spectroscopy; Chlorophyll; Bacterial reaction centers; Photosynthetic unit; Purple bacteria; Green bacteria;

    Sammanfattning : Sunlight is a plentiful, continuously flowing source of energy, fuelling life on Earth as we know it. To use this potential, plants, cyanobacteria and photosynthetic bacteria evolved to absorb solar radiance and convert it into a chemically stable form by performing a process known as photosynthesis. LÄS MER

  5. 4. Conformational Flexibility in Protein Function: Dynamics of S100A4, Photosynthetic Reaction Centre and the Prenylating Enzymes UbiA and MenA

    Författare :Annette Duelli; Göteborgs universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Structural Biology;

    Sammanfattning : Proteins are the most versatile macromolecules and they are essentially involved in the biological processes throughout all living organisms. The three dimensional structure of proteins and their dynamical properties underlie their biological function and knowledge about protein structure and dynamics contributes to a detailed understanding of biochemical processes. LÄS MER

  7. 5. Lipidic-sponge phase crystallisation and time-resolved Laue diffraction studies of bacterial photosynthetic reaction centres

    Författare :Annemarie Wöhri; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; lipidic-sponge phase crystallization reaction centre from Rhodobacter sphaeroides and Blastochloris viridis photosynthesis evolution time-resolved Laue diffraction;

    Sammanfattning : Photosynthesis is the procedure of light capture and converting it into a chemical energy source for the cell. The work-horse of this process are photosynthetic reaction centres, which capture photons with the help of their antenna complexes and use these photons to drive charge separation reactions, and ultimately chemiosmotic coupling. LÄS MER