Sökning: "Phytochromes"

Visar resultat 1 - 5 av 7 avhandlingar innehållade ordet Phytochromes.

  1. 1. The Primary Structural Photo-Response of a Bacterial Phytochrome Probed by Serial Femtosecond Crystallography

    Författare :Elin Claesson; Göteborgs universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Photoreceptors; Phytochromes; SFX;

    Sammanfattning : Species across all kingdoms of life rely on the ability to sense different light conditions. Some organisms convert light into chemical energy via the reactions involved in photosynthesis, whereas others use it to trigger cellular signals. The group of proteins that are responsible for light perception are called photoreceptor proteins. LÄS MER

  3. 2. Isotope labeling of proteins for spectroscopic studies

    Författare :Emil Gustavsson; Göteborgs universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Isotope labeling; Proteins; Cell-free protein expression; NMR; IR; Infrared;

    Sammanfattning : Protein structural dynamics have been closely tied to the molecular mechanisms controlling for example enzyme activities. In my work, I have mainly studied the bacteriophytochrome from Deinococcus radiodurans. LÄS MER

  4. 3. Computational Studies of Photobiological Keto-Enol Reactions and Chromophores

    Författare :Olle Falklöf; Bo Durbeej; Patrick Norman; Luis Manuel Frutos Gaite; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : This thesis presents computational chemistry studies of keto-enol reactions and chromophores of photobiological signicance.The rst part of the thesis is concerned with two protein-bound chromophores that, depending on the chemical conditions, can exist in a number of dierent ketonic and enolic forms. LÄS MER

  5. 4. Structural characterization of Deinococcus radiodurans phytochrome in solution

    Författare :Lidija Vrhovac; Sebastian Westenhoff; Vladislav Orekhov; Magnus Wolf-Watz; Uppsala universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; Biokemi; Biochemistry;

    Sammanfattning : Phytochromes are red/far-red photoreceptors which control a wide spectrum of biological processes inplants, fungi, and bacteria. Although phytochromes have been extensively studied, their mechanism ofaction still remains elusive. The signaling mechanism suggested by crystal structures involves refoldingof the so-called PHY tongue. LÄS MER

  7. 5. Signal Transduction in Photoreceptor Proteins : Insights From Time-Resolved X-ray Solution Scattering

    Författare :Oskar Berntsson; Göteborgs universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Signal transduction; Photoreceptor; Time-resolved X-ray solution scattering; Protein dynamics; Phytochrome; Light-oxygen-voltage; Cryptochrome;

    Sammanfattning : The ability to sense and react to different light conditions is of great importance for many organisms on the face of the earth. Specialized proteins known as photoreceptor proteins provide bacteria, plants and animals with this ability. LÄS MER