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  1. 1. Structure-function relationships of hormone-sensitive lipase

    Författare :Torben Österlund; Institutionen för translationell medicin; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Proteins; mutagenesis; domain; fold; catalytic triad; lipase; structure; enzymology; Proteiner; enzymologi;

    Sammanfattning : The primary role of hormone-sensitive lipase (HSL), an 84 kDa enzyme of 768 amino acids (in the rat protein), is to hydrolyse stored triacylglycerols in adipocytes of white adipose tissue. Catecholamines and insulin regulate lipolysis through cellular signalling. LÄS MER

  3. 2. Membrane Induced Structure in Transmembrane Signaling Proteins and Peptides : Peptide–Lipid Interactions Studied by Spectroscopic Methods

    Författare :Sofia E. Unnerståle; Lena Mäler; Jason Schnell; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; peptide-lipid interaction; paddle domain; voltage gating; voltage sensor domain; micelle; phospholipid bicelle; solution structure; HAMP domain; nuclear magnetic resonance spectroscopy; circular dichroism spectroscopy; nonspecific interaction; Biophysics; biofysik;

    Sammanfattning : Biological membranes, defining the boundary of cells and eukaryotic organelles, are mainly composed of lipids and membrane proteins. Interactions between these lipids and proteins are needed to preserve the tight seal of the membrane, but also to induce structure for proper function in many membrane proteins. LÄS MER

  4. 3. New methods for protein structure threading and domain identification

    Författare :Mats Lindstam; Biokemi och Strukturbiologi; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; biomatematik; Molecular biophysics; Molekylär biofysik; medicinsk informatik; Bioinformatik; biomathematics biometrics; medical informatics; structure prediction; Bioinformatics; domain identification; Structural bioinformatics; threading;

    Sammanfattning : The availability of three-dimensional structures of proteins has provided enormous insight into the detailed molecular machinery of the living cell. Since the late 1950s and early 1960s, experimental methods for deriving protein structures have contributed more than 30,000 entries to the Protein Data Bank, representing the collected knowledge of protein and other macromolecular structures. LÄS MER

  5. 4. Structural Information and Hidden Markov Models for Biological Sequence Analysis

    Författare :Jeanette Tångrot; Bo Kågström; Uwe H. Sauer; Erik Sonnhammer; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; HMM; structure alignment; protein structure; secondary structure; remote homologue; annotation; domain family; protein family; protein superfamily; protein fold recognition; Bioinformatics; Bioinformatik;

    Sammanfattning : Bioinformatics is a fast-developing field, which makes use of computational methods to analyse and structure biological data. An important branch of bioinformatics is structure and function prediction of proteins, which is often based on finding relationships to already characterized proteins. LÄS MER

  7. 5. Cellular regulation of heparan sulfate structure and function

    Författare :Fariba Safaiyan; Uppsala universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Biochemistry; Heparan sulfate; structure; biosynthesis; sulfation; Biokemi; Biochemistry; Biokemi; Medical and Physiological Chemistry; medicinsk och fysiologisk kemi;

    Sammanfattning : Heparan sulfate (HS) is a sulfated glycosaminoglycan found on cell surfaces and in the extracellular matrix as HS proteoglycans. HS is synthesized as a polymer of alternating glucuronic acid and N-acetylglucosamine units. LÄS MER