Sökning: "disulphide bond"

Visar resultat 1 - 5 av 10 avhandlingar innehållade orden disulphide bond.

  1. 1. Light Protection in Plants: Characterisation of Violaxanthin de-epoxidase

    Författare :Erik Hallin; Biokemi och Strukturbiologi; []
    Nyckelord :violaxanthin de-epoxidase; cysteine; disulphide bond; function; pH activation; oligomerisation; circular dichroism; crosslinking; small angle x-ray scattering;

    Sammanfattning : Plants and algae need light to drive the photosynthetic machinery. An excess of light will, however, result in damage to the photosynthetic machinery and to the rest of the organism. The surplus of energy, when exposed to light stress is converted into less harmful heat energy through a process called non-photochemical quenching. LÄS MER

  3. 2. Protein folding studies of human superoxide dismutase and ALS associated mutants

    Författare :Mikael Lindberg; Mikael Oliveberg; Jane Clarke; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Biochemistry; superoxide dismutase; ALS; protein folding; equilibrium titration; protein stability; apo protein; disulphide bridge; chevron plot; Biokemi; Biochemistry; Biokemi; Biochemistry; biokemi;

    Sammanfattning : Proteins are among the most abundant biological macromolecules. The cellular machinery is coupled to exact structural shape and properties of the more than 100 000 different proteins. Still, proteins can sometimes completely change their character and as a result trigger neuro degenerative disease. LÄS MER

  4. 3. Fusion activation in murine leukemia virus

    Författare :Michael Wallin; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :MLV; retrovirus; virus entry; membrane fusion; disulphide isomerization;

    Sammanfattning : This thesis describes the fusion activation in Murine leukaemia virus (MLV). During entry of retroviruses into uninfected cells, the viral and cellular membranes fuse. The fusion process is mediated by the viral envelope protein composed of three SU and TM heterodimers. LÄS MER

  5. 4. The chloroplast lumen : New insights into thiol redox regulation and functions of lumenal proteins

    Författare :Michael Hall; Wolfgang Schröder; Bob B. Buchanan; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Photosynthesis; thylakoid lumen; thioredoxin; pentapeptide repeat; proteomics; Biochemistry; biokemi;

    Sammanfattning : In higher plants oxygenic photosynthesis primarily takes place in the chloroplasts of leaves. Within the chloroplasts is an intricate membrane system, the thylakoid membrane, which is the site of light harvesting and photosynthetic electron transport. LÄS MER

  7. 5. Intestinal mucins 'soluble and insoluble problems'

    Författare :Annkatrin Herrmann; Institutionen för experimentell medicinsk vetenskap; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; colorectal carcinoma; pulse labelling; organ culture; glycopeptide; small intestine; colon; glycoprotein complex; insoluble; muc2; MUC2; Mucin; mucus; carbohydrate; oligosaccharide.; Gastro-enterology; Gastroenterologi;

    Sammanfattning : Highly glycosylated glycoproteins – mucins – are the major constituents of the mucus layer and glycocalyx that cover mucosal surfaces. Twelve human mucin genes have been identified, and the mucins may be divided into those that are membraneassociated and those that are secreted. LÄS MER