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Visar resultat 1 - 5 av 20 avhandlingar som matchar ovanstående sökkriterier.

1. 1. Ribosome display for selection and evolution of affibody molecules

   Författare :Sebastian Grimm; Per-Åke Nygren; Mike Taussig; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; affibody; ribosome display; phage display; combinatorial protein engineering; library; murine IgG1; SATB1; Ras; Raf; Genetic engineering including functional genomics; Genteknik inkl. funktionsgenomik; SRA - Molecular Bioscience; SRA - Molekylär biovetenskap;

   Sammanfattning : Affinity proteins are invaluable tools in biotechnological and medical applications. This thesis is about combinatorial protein engineering principles for the generation of novel affinity proteins to purify mouse immunoglobulin, detect a potential cancer marker protein or inhibit a cell proliferation pathway. LÄS MER

3. 2. Engineering of Affibody molecules for Radionuclide Molecular Imaging and Intracellular Targeting

   Författare :Camilla Hofström; Torbjörn Gräslund; Serge Muyldermans; KTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Affibody molecules; affinity proteins; radionuclide molecular imaging; intracellular targeting; EGFR; HER2; IGF-1R; SRA - Molecular Bioscience; SRA - Molekylär biovetenskap;

   Sammanfattning : Affibody molecules are small (7 kDa) affinity proteins of non-immunoglobulin origin that have been generated to specifically interact with a large number of clinically important molecular targets.In this thesis, Affibody molecules have been employed as tracers for radionuclide molecular imaging of HER2- and IGF-1R-expressing tumors, paper I-IV, and for surface knock-down of EGFR, paper V. LÄS MER

4. 3. Intracellular systems for characterization and engineering of proteases and their substrates

   Författare :George Kostallas; Stefan Ståhl; Patrik Samuelson; Matthew DeLisa; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; proteases; flow cytometry; GFP; CAT; protein engineering; ssrA; ClpXP; tobacco etch virus; TEV; site-specific; high-throughput; selection; proteolysis; libraries; Bioengineering; Bioteknik; SRA - Molecular Bioscience; SRA - Molekylär biovetenskap;

   Sammanfattning : Over the years, the view on proteases as relatively non-specific protein degradation enzymes, mainly involved in food digestion and intracellular protein turnover, has shifted and they are now recognized as key regulators of many biological processes that determine the fate of a cell. Besides their biological role, proteases have emerged as important tools in various biotechnical, industrial and medical applications. LÄS MER

5. 4. On the Design of Affibody Molecules for Radiolabeling and In Vivo Molecular Imaging

   Författare :Daniel Rosik; Amelie Eriksson Karlström; Christian Heinis; KTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Affibody molecule; AC DC; radionuclide molecular imaging; HER2; SPECT; PET; biodistribution; peptide synthesis; radiolabeling; SRA - Molecular Bioscience; SRA - Molekylär biovetenskap;

   Sammanfattning : Affibody molecules have lately shown great potential as tools for in vivo molecular imaging. These small, 3-helical bundles, with their highly stable protein scaffold, are well suited for the often harsh conditions of radiolabeling. LÄS MER

7. 5. Theoretical studies on photophysics and photochemistry of DNA

   Författare :Yuejie Ai; Yi Luo; Lluís Blancafort; KTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Quantum chemistry; Kvantkemi; SRA - Molecular Bioscience; SRA - Molekylär biovetenskap;

   Sammanfattning : Theoretical studies on biological systems like nucleic acid and protein have been widely developed in the past 50 years and will continue to be a topic of interest in forefronts of natural science. In addition to experimental science, computational modeling can give useful information and help us to understand biochemical issues at molecular, atomic and even electronic levels. LÄS MER