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1. 1. The type I-E CRISPR-Cas system : Biology and applications of an adaptive immune system in bacteria

   Författare :Lina Amlinger; Magnus Lundgren; Peter Fineran; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; CRISPR; CRISPR-Cas; virus defense; bacteria; bacteriophage; adaptation; spacer integration; interference; gene silencing; fluorescent reporter; Escherichia coli; Mikrobiologi; Microbiology;

   Sammanfattning : CRISPR-Cas systems are adaptive immune systems in bacteria and archaea, consisting of a clustered regularly interspaced short palindromic repeats (CRISPR) array and CRISPR associated (Cas) proteins. In this work, the type I-E CRISPR-Cas system of Escherichia coli was studied.CRISPR-Cas immunity is divided into three stages. LÄS MER

3. 2. Pitfalls in β-cell ion imaging with fluorescent indicators and their use for real-time detection of somatostatin secretion

   Författare :Mingyu Yang; Anders Tengholm; Enming Zhang; Uppsala universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; β-cells; cytoplasmic Ca²⁺; cytoplasmic pH; fluorescent indicators; pancreatic islets; R-GECO1; somatostatin; type 2 diabetes; Molekylär cellbiologi; Molecular Cellbiology;

   Sammanfattning : Fluorescent ion indicators have become indispensable tools in cell physiology. Dye indicators can easily be loaded into most types of cells, while genetically encoded indicators are advantageous in allowing specific cellular or subcellular targeting. LÄS MER

4. 3. Fluorescent Probes and Protein Misfolding: Methods and Applications

   Författare :Irem Nasir; Biokemi och Strukturbiologi; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Protein misfolding; fluorophores; filter-trap; site-specific fluorophore labeling; amyloid-beta; microscopic rate constants; solvatochromic probes; alpha-synuclein; lipid vesicles; nanoparticles; protein adsorption;

   Sammanfattning : Protein misfolding is a frequently occurring event in living cells and without the quality control, the consequences are disasterous. In this thesis, we studied protein misfolding in vitro by employing a variety of fluorophores, to either detect the highly ordered aggregates of intrinsically disordered proteins/peptides or slight misfolding of a natively folded protein. LÄS MER

5. 4. Development of sensitive cellular assay systems and their application to the identification of "orphan" seven-transmembrane receptors

   Författare :Knut Kotarsky; Slemhinnans immunologi; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Biokemi; Metabolism; Biochemistry; metabolism; leukotrieneB4; thiazolidinedione; 9-HODE; fatty acid; luciferase; GFP; reporter gene; preclinical assay; receptor; GPCR;

   Sammanfattning : Seven-transmembrane, G-protein coupled receptors play a central role in physiology since they facilitate cell communication in multicellular organisms by recognition of a broad range of ligands. They also represent important drug targets. LÄS MER

7. 5. Prediction, Design and Determination of Protein Structures

   Författare :Sebastian Rämisch; Biokemi och Strukturbiologi; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; protein design; Rosetta; Fold-and-Dock; leucine rich repeat proteins; coiled-coils; molecular replacement; ab initio phasing; temperature stability; fluorescent proteins;

   Sammanfattning : The three-dimensional structure of protein is encoded in its amino acid sequence. Modern structure prediction algorithms make it possible to predict the structure of small proteins using sequence information alone. LÄS MER