Search for dissertations about: "Helical structures"

Showing result 1 - 5 of 81 swedish dissertations containing the words Helical structures.

  1. 1. Biocomputational studies on protein structures

    Author : Erik Nordling; Karolinska Institutet; Karolinska Institutet; []
    Keywords : ;

    Abstract : Biology in the post-genomic era produces large amount of data. This, in combination with the need for efficient algorithms to find genes in the genomic material, has brought a renaissance into the field of computational biology. READ MORE

  2. 2. Chemical Tuning of the Magnetic Interactions in Layer Structures

    Author : Sabina Ronneteg; Rolf Berger; J. Paul Attfield; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Inorganic chemistry; neutron powder diffraction; magnetometry; layered magnetic structure; incommensurate helical structure; ThCr2Si2 type structure; antiferromagnetism; ferromagnetism; electronic structure calculations; Oorganisk kemi; Inorganic chemistry; Oorganisk kemi;

    Abstract : Thin metal films have found their use in many magnetic devices. They form pseudo two-dimensional systems, where the mechanisms for the magnetic interactions between the layers are not completely understood. READ MORE

  3. 3. Environmental influence on alpha-helical peptides

    Author : Ana Caballero Herrera; Karolinska Institutet; Karolinska Institutet; []
    Keywords : MD alpha helix; C-peptide; membrane proteins; hydrogen bonds; packing; dynamics;

    Abstract : Most proteins at physiological conditions fold into a native functional three-dimensional conformation. The stability of the Native state is a balance between different interactions within the protein and with the solvent. READ MORE

  4. 4. Prediction, Design and Determination of Protein Structures

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

    Abstract : 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. READ MORE

  5. 5. POLYPEPTIDES - STRUCTURES AND INTERACTIONS IN MONOLAYERS AND AQUEOUS SOLUTIONS

    Author : Helen Sjögren; Fysikalisk kemi; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Physical chemistry; Fysikalisk kemi; tyrosine ; co-poly-L lysine; phenylalanine ; co-poly-L- lysine; poly-L-glutamate; poly-L-lysine; poly-L-valine; poly-L-isoleucine; poly-gamma-methyl-L-glutamate; poly-L-leucine; monolayer; Langmuir-Blodgett film; CD spectroscopy; random coil; alpha-helix; surfactant stabilisation; polypeptide; polyamino acid;

    Abstract : The aim of this thesis work is to understand and be able to control polypeptide conformation and interactions at interfaces and in solution by changing the solution conditions. For this purpose simple model polypeptides, so-called polyamino acids, have been investigated at the air-liquid interface, as well as in aqueous solutions. READ MORE