Search for dissertations about: "biologically active peptides"

Showing result 1 - 5 of 27 swedish dissertations containing the words biologically active peptides.

  2. 1. Conformational Studies of Biologically Active Peptides

    Author : Björn Walse; Biofysikalisk kemi; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; PapD chaperone; P pili; desmopressin; DDAVP; protein-peptide interactions; glycopeptides; peptide design; transferred NOE; molecular dynamics simulations; circular dichroism; peptide conformation; NMR spectroscopy; immunogenic glycopeptides; Physical chemistry; Fysikalisk kemi;

    Abstract : In this work conformational studies have been performed on peptides from four different systems in an attempt to gain knowledge about their biological function. Circular dichroism (CD) spectroscopy and nuclear magnetic resonance (NMR) spectroscopy in combination with distance geometry and restrained molecular dynamics simulations were the methods used. READ MORE

  4. 2. Solution structures of biologically active peptides, studied by CD and NMR spectroscopy

    Author : Anders Öhman; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : .... READ MORE

  5. 3. Cell-penetrating peptides and bioactive cargoes : Strategies and mechanisms

    Author : Kalle Kilk; Ülo Langel; Michael J. Gait; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Cell-penetrating peptide; delivery; Peptide nucleic acid; Biochemistry; Biokemi;

    Abstract : The cell membrane is an impermeable barrier for most macromolecules. Recently discovered cell-penetrating peptides (CPPs) have gained lot of attention because they can cross the membrane, and even more, carry cargoes with them. How CPPs enter cells is still not clear, while the delivery of different cargoes has been convincingly shown. READ MORE

  6. 4. Isolation, structure and processing of bioactive peptides

    Author : Valentina Bonetto; Karolinska Institutet; Karolinska Institutet; []
    Keywords : ;

    Abstract : Amino acid sequences deduced from DNA sequences do not prove in which forms proteins, peptides and their processed products are present in the tissues. The products of a single gene may give rise to variants of peptides because of post-transcriptional or post-translational processing. READ MORE

  7. 5. Discovery of Small Peptides and Peptidomimetics Targeting the Substance P 1-7 Binding Site : Focus on Design, Synthesis, Structure-Activity Relationships and Drug-Like Properties

    Author : Rebecca Fransson; Anja Sandström; John S Svendsen; Uppsala universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; substance P 1-7; peptidomimetics; structure-activity relationship; drug-like properties; phenylalanine; imidazole; MAP aryl amides; carbonylation; Pharmaceutical chemistry; Farmaceutisk kemi; Medicinal Chemistry; Läkemedelskemi;

    Abstract : Biologically active peptides are important for many physiological functions in the human body and therefore serve as interesting starting points in drug discovery processes. In this work the neuropeptide substance P 1–7 (SP1–7, H-Arg-Pro-Lys-Pro-Gln-Gln-Phe-OH), which has been demonstrated to reduce neuropathic pain and attenuate opioid withdrawal symptoms in animal models, has been addressed in a medicinal chemistry program with the overall aim of transforming this bioactive peptide into more drug-like compounds. READ MORE