Sökning: "E. coli"

Visar resultat 21 - 25 av 710 avhandlingar innehållade orden E. coli.

  1. 21. Studies of translation in E. coli

    Författare :Margareta Faxén; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : A cis-acting translational mutation in the beginning of the glnS gene was analyzed; this mutation creates a extra base pair to a proposed extended ribosome binding site. When increasing the complementarity to this extended ribosome binding site, it was demonstrated that the expression increased; correspondingly, when complementarity was decreasd the expression went down. LÄS MER

  3. 22. Protein targeting, translocation and insertion in Escherichia coli : Proteomic analysis of substrate-pathway relationships

    Författare :Louise Baars; Jan-Willem de Gier; Jan-Maarten van Dijl; Stockholms universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; protein biogenesis; targeting; translocation; insertion; SecB; SecE; E. coli; Biochemistry; Biokemi; biokemi; Biochemistry;

    Sammanfattning : Approximately 10% of the open reading frames in the genome of the Gram-negative bacterium E. coli encodes secretory proteins, and 20% encodes integral inner membrane proteins (IMPs). LÄS MER

  4. 23. Fluorescence Studies of Cell Division in Escherichia coli

    Författare :Bill Söderström; Gunnar von Heijne; Jie Xiao; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; E. coli; Cell division; FtsZ; Fluorescence microscopy; FRAP; Biophysics; biofysik;

    Sammanfattning : In Escherichia coli the cell division is carried out by a large dynamic protein complex called the divisome. The divisome assembles in a two-step manner starting with the localization of the eukaryotic tubulin homologue FtsZ to the midcell. Together with other early arriving proteins FtsZ form an intermediate structure called the Z-ring. LÄS MER

  5. 24. Large-scale Bioreactor Phenomena and Characteristics; Effects on E.coli fed batch fermentations on 30m3 scale

    Författare :Gustav Silfversparre; KTH; []
    Nyckelord :Large-scale; E.coli; fed batch; concentration gradients; mixing;

    Sammanfattning : Due to economical and practical limitations the fluiddynamics and mass transport properties are less optimal inlarge-scale bioreactors compared to lab-scale bioreactors. Incombination with the microbial reaction rates this creates amuch more dynamic environment for cells cultivated inlarge-scale bioreactors compared to lab-scale bioreactors. LÄS MER

  7. 25. Abiotic Stress Tolerance. Metabolic and Physiological Effects of Compatible Solutes and Calmodulin on E. coli and Tobacco

    Författare :Jenny Lindberg; Tillämpad biokemi; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Abiotic stress; compatible solutes; osmotic stress; osmoprotectants; trehalose; calmodulin; E. coli; N. tabacum; genetic engineering; Biotechnology; Bioteknik; Biochemistry; Metabolism; Biokemi; metabolism; glycine betaine;

    Sammanfattning : In their natural habitats, bacteria and plants can be exposed to abiotic stresses such as drought, high salt concentrations and freezing, which are factors limiting their capacity for growth and proliferation. To withstand environmental stresses, they have evolved specific stress responses. LÄS MER