Sökning: "tryptophan"

Visar resultat 11 - 15 av 153 avhandlingar innehållade ordet tryptophan.

  1. 11. Regulation of Proton Coupled Electron Transfer from Amino Acids in Artificial Model Systems: A Mechanistic Study

    Författare :Martin Sjödin; Leif Hammarström; Jan Davidsson; G. Daniel Nocera; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Physical chemistry; Proton Coupled Electron Transfer; Tyrosine; Tryptophan; Electron Transfer; Hydrogen bond; Photosystem II; Proton transfer; Radical protein; Fysikalisk kemi; Physical chemistry; Fysikalisk kemi;

    Sammanfattning : Amino acid radicals are key redox intermediates in several natural enzymes including Cytochrome c peroxidase, DNA photolyase, ribonucletide reductase, cytochrome c oxidase and photosystem II. Electron transfer from amino acids is often coupled to deprotonation and this thesis concerns the coupling of electron transfer from tyrosine and tryptophan to trisbipyridineruthenium(III) with deprotonation in model complexes. LÄS MER

  3. 12. Development and characterisation of protecting groups that enhance the solubility of synthetic peptides : Methods to improve the aqueous solubility of hydrophobic peptides

    Författare :Karolina Wahlström; Anders Undén; Fernando Albericio; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Solid phase peptide synthesis; Fmoc chemistry; solubility problems; tryptophan; tyrosine; Nmec; Nmbu; Bioorganic chemistry; Bioorganisk kemi; Neurochemistry and Molecular Neurobiology; neurokemi med molekylär neurobiologi;

    Sammanfattning : Chemical synthesis of peptides is generally performed by solid phase peptide synthesis (SPPS). Although SPPS is a rapid and convenient method to prepare peptides, the major methodological problem in SPPS is related to solvation/solubility. LÄS MER

  4. 13. Stress Coping Strategies in Rainbow Trout (Oncorhynchus mykiss)

    Författare :Joachim Schjolden; Svante Winberg; Felicity Huntingford; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Biology; Salmonid fish; Stress coping; Serotonin; Cortisol; Catecholamines; Monoaminoxidase; Tryptophan; Monoamines; Behaviour; Stress; Biologi; Biology; Biologi;

    Sammanfattning : Animals show a great variety in physiological and behavioural responses to stressors. These responses are often bimodally distributed within populations and show consistency on an individual level over time and across situations, which in terrestrial vertebrates have been identified as proactive and reactive stress coping strategies. LÄS MER

  5. 14. Probing Biomolecules and Membranes using Spectroscopy and Microscopy

    Författare :Frida Svensson; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; ruthenium dipyridophenazine complex; biomolecular probes; microscopy; membrane; tryptophan; retinoic acid; peptide-lipid interaction; Linear dichroism; emission; lifetime imaging;

    Sammanfattning : .... LÄS MER

  7. 15. Membrane Active Arginine and Tryptophan Rich Peptides

    Författare :Hanna Rydberg; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : Genetic diseases, cancer and antibiotic resistant bacterial infections are causing many people a great deal of suffering every year. Treatment and cure of these medical conditions are desirable, but also challenging for the medical industry. LÄS MER