Sökning: "HSQC-TOCSY"

Hittade 3 avhandlingar innehållade ordet HSQC-TOCSY.

  1. 1. Fundamental Aspects of Lignin Carbohydrate Complexes (LCC) : Mechanisms, Recalcitrance and Material concepts

    Författare :Nicola Giummarella; Martin Lawoko; Gunnar Henriksson; Arthur J. Ragauskas; KTH; []
    Nyckelord :LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; Lignin Carbohydrates Complexes; Phenyl Glycosides; Benzyl Ethers; Benzyl and γ-esters; Universal Mild Quantitative fractionation; LCC mechanism formation; Extracellular lignin; Dehydogenation polymer; Autohydrolysis; Recalcitrance; Acetylation role; HSQC; HMBC; HSQC-TOCSY; 13C; 31P NMR; Thioacidolysis-GC; SEC; Green; Biomimetic; One-pot-lignin functionalization; Lignin platform material.; Fiber- och polymervetenskap; Fibre and Polymer Science;

    Sammanfattning : Covalent bonds between lignin and carbohydrates, forming a matrix referred to as lignin carbohydrate complexes (LCC), remain one of the most controversial topics in wood chemistry. A key issue is whether they are formed during chemical and mechanical pretreatments of the compact wood structure or actually present in wood prior to isolation. LÄS MER

  3. 2. Conformations of Flexible Oligosaccharides : Molecular Simulations and NMR spectroscopy

    Författare :Robert Pendrill; Göran Widmalm; Jens Duus; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Carbohydrates; Oligosaccharide; Conformation; NMR spectroscopy; MD simulations; organisk kemi; Organic Chemistry;

    Sammanfattning : The conformational preferences of several oligosaccharides are investigated herein using a combination of NMR spectroscopy and molecular dynamics (MD) simulations, focusing on the torsion angles associated with the glycosidic linkages.Strategies for obtaining usable J-HMBC spectra for carbons with an adjacent 13C label are described. LÄS MER

  4. 3. Glutaredoxin 3 from Escherichia coli : NMR structure analysis and structural aspects of the enzymatic mechanism

    Författare :Kerstin Nordstrand; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : The structure of Escherichia coli glutaredoxin 3 (Grx3) was investigated using NMR spectroscopy in combination with isotope labeling. Nearly complete sequence specific assignment were obtained for the reduced Grx3 using a 15N enriched protein sample. LÄS MER