Sökning: "protein crystallization"

Visar resultat 16 - 20 av 62 avhandlingar innehållade orden protein crystallization.

  1. 16. Structural studies on the integral membrane protein, ubiquinol oxidase from Escherichia coli

    Författare :Jeff Abramson; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Biochemistry; crystal structure; ubiquinol oxidase; membrane protein; oxidases; Biokemi; Biochemistry; Biokemi; biokemi; Biochemistry;

    Sammanfattning : Heme-copper oxidases are redox-driven proton pumps that couple the reduction of molecular oxygen to water with the vectorial translocation of protons across the membrane. The proton gradient generated by heme-copper oxidases and the other members of the aerobic respiratory chain is ultimately used to drive the synthesis of ATP. LÄS MER

  3. 17. Plant aquaporin regulation: Structural and functional studies using diffraction and scattering techniques

    Författare :Michael Järvå; Göteborgs universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; X-ray Crystallography; Membrane protein; Plasma membrane intrinsic protein; Aquaporin; pH gating; mercury; proteoliposome assay; water transport; SANS; SAXS; WAXS; nanodisc; liposome;

    Sammanfattning : Water is the basis for life as we know it. It is only logical then that all organisms have evolved specialized proteins, aquaporins, which regulate water flow across their membranes. Plants, which are immobile, depend more on their environment and also use water flows to move, to breathe, and to grow. LÄS MER

  4. 18. Understanding structure and function of membrane protein transporters

    Författare :Anna-Karin Lundbäck; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : Membrane protein transporters are important proteins in the cell, as they maintain different solutes and metabolites at a stable concentration. Numerous diseases can be linked to malfunctioning transporters, which makes them interesting pharmaceutical targets. LÄS MER

  5. 19. P-type ATPases studied by electron microscopy and two-dimensional crystallization

    Författare :Kenneth Yijing Xian; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :electron microscopy; ion transport; membrane protein; P-type ATPase; two-dimensional crystallization;

    Sammanfattning : Electron microscopy and two-dimensional crystallography have been used to study the molecular structures of the porcine renal Na+,K+-ATPase and the porcine gastric H+,K+-ATPase. In addition, morphological changes have been observed with electron cryomicroscopy from tubulovesicles in porcine gastric mucosae. LÄS MER

  7. 20. Production and Characterisation of Aquaporins and Proton-Translocating Transhydrogenase

    Författare :Mikael Ekvall; Göteborgs universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; aquaporins; transhydrogenase; membrane proteins; x-ray chrystallography; structure; protein production; overproduction;

    Sammanfattning : Dissertation Abstract Water transport in eukaryotic cells is a highly regulated and fine-tuned process. Water channel protein known as aquaporins (AQPs), constitute the main cellular water transport system, preserving water homeostasis by maintaining specific selectivity-mechanisms. LÄS MER