Sökning: "octamer"

Visar resultat 1 - 5 av 26 avhandlingar innehållade ordet octamer.

1. 1. The functional anatomy of kappa promoters

   Författare :Mats Bemark; Immunologi; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; histochemistry; cytochemistry; Histology; transcription; octamer; promoters; tissue culture; Histologi; cytokemi; histokemi; vävnadskultur;

   Sammanfattning : Immunoglobulin kappa promoters were collected from mice and man. It was shown that they had homology within but not between subgroups, and the promoters were also conserved between species. The octamer element was found in all promoters, but other sequence elements were conserved within the distinct subgroups. LÄS MER

3. 2. Regulation of immunoglobulin transcription

   Författare :David Liberg; Immunologi; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; N-substituted benzamides; NFkB; transcription; B cells; immunoglobulin; Immunology; serology; transplantation; Immunologi; serologi;

   Sammanfattning : Each Ig V-region has its own upstream promoter and the promoter of a mature Ig gene is thereby selected during the V(D)J recombination process. Upon comparison, it is evident that only one transcription factor binding site, the octamer, is preserved within all promoters. LÄS MER

4. 3. Chromatin Structure: Nucleosome Formation and Positioning

   Författare :Hans R. Widlund; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; centromere; formation; chromatin; nucleosome; telomere;

   Sammanfattning : In all eukaryotic cells the DNA is complexed with a group of highly basic histone proteins forming nucleosomes and higher order chromatin structures. In the nucleosome the DNA is tightly wrapped, almost two turns, around an octamer of histone proteins. LÄS MER

5. 4. Studies of penta-decameric binding proteins: AP-4 and CBF-A

   Författare :Alaitz Aranburu; Immunologi; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Biochemistry; transplantation; Metabolism; serologi; metabolism; Biokemi; serology; Immunology; hnRNP H; NPM; CBF-A; AP-4; transcription; B cells; immunoglobulin; Immunologi;

   Sammanfattning : Each immunoglobulin (Ig) V gene segment contains an upstream promoter region. The octamer element and the TATA box are the only elements that are conserved in all Ig promoters. The presence of the octamer element is necessary, but not sufficient to support high levels of transcription. LÄS MER

7. 5. New Oligothiophenes

   Författare :Fredrik von Kieseritzky; KTH; []
   Nyckelord :;

   Sammanfattning : This thesis deals with synthesis and characterization of newoligothiophenes and derivatives thereof, for use insemiconductor applications. One series of regiodefinedoligothiophenes up to the octamer was prepared and evaluated.Photoluminescence quantum efficiencies in solution were 22-31%, but dropped to 2-5 % in the solid state. LÄS MER