Sökning: "cofactors"

Visar resultat 11 - 15 av 82 avhandlingar innehållade ordet cofactors.

1. 11. Light’EM up! : structural characterization of light-driven membrane protein complexes by cryogenic electron microscopy

   Författare :André Tomás Graça; Wolfgang P. Schröder; Johannes Messinger; Karina Persson; Werner Kühlbrandt; Umeå universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; 3D reconstruction; Arabidopsis thaliana; assembly; chlorophyll; cryo-EM; cyanobacteria; Deinococus radiodurans; electron; land plants; membrane protein complexes; Photosystem II; proton; single-particle analysis; S-Layer Deinoxanthin Binding Complex SDBC ; water.; Biochemistry; biokemi; biologisk kemi; biological chemistry;

   Sammanfattning : Photosynthesis is probably the most important process for allowing life to develop into the diverse forms we see today. In this process, solar radiation is used to convert CO2 into biomass. From this process, we obtain oxygen to breathe, sources of food (plant biomass), and the potential for clean and sustainable energy. LÄS MER

3. 12. Photophosphorylation as mediated by vitamin K₃ in broken spinach chloroplasts

   Författare :Mohamed Usamah Duraini; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

   Sammanfattning : The effects of DCMU on menadione or menadione sodium bisulphite (MSB) mediated photophosphorylation in broken chloroplasts kept in a Tricine or in a HEPES buffer at either high (131 W m-2) or low irradiance (57 W m-2) in combination with NaN3, KCN, under white, red or far red light, were studied.Some combinations of the factors tested created a system where DCMU inhibited cyclic ATP formation, whereas other combinations created a system insensitive to DCMU or even with a stimulation of ATP formation by presence of the inhibitor. LÄS MER

4. 13. Physiological Engineering of Xylose Utilisation by Recombinant Saccharomyces cerevisiae

   Författare :Nina Quednau Meinander; Teknisk mikrobiologi; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; protein burden; physiology; fed-batch fermentation; chemostat; recombinant Saccharomyces cerevisiae; ethanol; xylose; xylitol; Microbiology; bacteriology; virology; mycology; Mikrobiologi; bakteriologi; virologi; mykologi;

   Sammanfattning : Xylitol production by recombinant, XYL1-expressing Saccharomyces cerevisiae was investigated in fed-batch fermentation using different cosubstrates for growth, and generation of reduced cofactors and maintenance energy. Xylose was converted into xylitol with 1:1 yield. LÄS MER

5. 14. Deciphering mechanisms of transcriptional activation and repression in B lymphocytes

   Författare :Stephen Malin; Karolinska Institutet; Karolinska Institutet; []
   Nyckelord :;

   Sammanfattning : During the course of evolution, our immune system has developed, to defend us against infections, a diverse number of specialized cell types. Immunoglobulin producing B lymphocytes are produced by the differentiation of hematopoietic stem cells (HSC) into gradually more lineage-restricted progenitors. LÄS MER

7. 15. Structural and functional studies of factor V in health and disease

   Författare :Mårten Steen; Malmö Klinisk kemi; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Klinisk kemi; Clinical chemistry; APC resistance and hemophilia; thrombosis; factor VIII; coagulation; factor V;

   Sammanfattning : The homologous blood coagulation factors V (FV) and factor VIII (FVIII) are important at sites of vascular injury for the amplification of the clotting cascade. Activated FV (FVa) serves as a cofactor to the enzyme activated factor X (FXa) in the activation of prothrombin. This complex is called the prothrombinase complex. LÄS MER