Search for dissertations about: "carbohydrate conformations"

Showing result 1 - 5 of 9 swedish dissertations containing the words carbohydrate conformations.

2. 1. Computational Analysis of Carbohydrates : Dynamical Properties and Interactions

   Author : Robert Eklund; Göran Widmalm; Sören B. Engelsen; Stockholms universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Carbohydrate; DFT; ab initio; docking calculations; Molecular dynamics; Langevin Dynaimcs; structure analysis; carbohydrate-protein interaction; Chemical shift calculations; Spin spin coupling constants.; Organic chemistry; Organisk kemi;

   Abstract : In this thesis a computational complement to experimental observables will be presented. Computational tools such as molecular dynamics and quantum chemical tools will be used to aid in the interpretation of experimentally (NMR) obtained structural data. READ MORE

4. 2. The sweet side of molecular structure : NMR spectroscopic studies of glycans and their interactions with proteins

   Author : Christoffer Hamark; Göran Widmalm; Mario Schubert; Stockholms universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; bioorganic chemistry; glycans; ligand-based NMR; molecular simulations; protein-carbohydrate interactions; lectins; carbohydrate conformations; 77Se NMR; structure-reactivity relationships; super-armed donors; organisk kemi; Organic Chemistry;

   Abstract : In this thesis, within the topic of bioorganic chemistry, the molecular structure of carbohydrates has been studied. Carbohydrates, or glycans, are ubiquitous biomolecules exhibiting a wide range of biological roles. READ MORE

5. 3. Carbohydrate-Based Inhibitors of Pathogen Adhesion to Cell Surface Glycoconjugates

   Author : Henrik C Hansen; Centrum för analys och syntes; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Galabiose analogs; Globotriose analogs; Escherichia coli; verotoxin; PapG adhesion; Streptococcus suis; Dendrimers; Multivalency; Amino-deoxy analogs; Organic chemistry; Inhibitor; Ceramide analogs; Glycoconjugates; Organisk kemi;

   Abstract : The fact that a growing number of pathogens develop resistance against traditional treatment is a growing medical problem. Infections, which until now have been harmless, might turn into life threatening diseases. These problems have led to an intensified search for alternative treatments. Analogs of cell surface glycoconjugates are an alternative. READ MORE

6. 4. Assembling and Unraveling Carbohydrates Structures : Conformational analysis of synthesized branched oligosaccharides

   Author : Thibault Angles d'Ortoli; Göran Widmalm; Christian Marcus Pedersen; Stockholms universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Convergent carbohydrate synthesis; Super-armed donors; Glycosylation; Conformational analysis; NMR; Chemical shift prediction; organisk kemi; Organic Chemistry;

   Abstract : Advances in the elaboration of vaccines and enzyme inhibitors rely on acquiring more knowledge about protein-carbohydrate binding events. Furthermore, the relationships between biological function and the three-dimensional properties of large glycans can be studied by focusing on the structural components they contained, namely, by scaling down the system under analysis. READ MORE

7. 5. Structure, dynamics and reactivity of carbohydrates : NMR spectroscopic studies

   Author : Jerk Rönnols; Göran Widmalm; Mikael Bols; Stockholms universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Carbohydrates; Conformation; NMR spectroscopy; Hydrogen bond; organisk kemi; Organic Chemistry;

   Abstract : The main focus of this thesis is on the ring conformations of carbohydrate molecules; how the conformational equilibria and the rates of the associated interconversions are affected by the molecular constitution and their surroundings.The conformational equilibria of a group of amine linked pseudodisaccharides, designed as potential glycosidase inhibitors, comprising α-D-altrosides are described in Chapter 3. READ MORE