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Skip to Search Results- 8Klassen, John S.
- 6Kitova, Elena N.
- 3Han, Ling
- 2Armstrong, Glen D.
- 2Dingle, Tanis C.
- 2El-Hawiet, Amr
- 41Graduate and Postdoctoral Studies (GPS), Faculty of
- 41Graduate and Postdoctoral Studies (GPS), Faculty of /Theses and Dissertations
- 9Chemistry, Department of
- 9Chemistry, Department of/Journal Articles (Chemistry)
- 2Biological Sciences, Department of
- 2Biological Sciences, Department of/Journal Articles (Biological Sciences)
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2004
Technical report TR04-10. This report overviews the Mass Spectrometry Data Classification and Feature Extraction problem. After reviewing previous research new classification and feature extraction techniques are presented and empirically evaluated on three data sets. One of the key points made...
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Structure and stability of carbohydrate-lipid interactions: Methylmannose polysaccharide-fatty acid complexes
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Klassen, John S., Siuda, Iwona, Renaud, Justin, Tieleman, D. Peter, Kitova, Elena N., Liu, Lan, Mayer, Paul M., Richards, Michele R., Lowary, Todd L.
We report a detailed study of the structure and stability of carbohydrate–lipid interactions. Complexes of a methylmannose polysaccharide (MMP) derivative and fatty acids (FAs) served as model systems. The dependence of solution affinities and gas-phase dissociation activation energies (Ea) on FA...
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Fall 2010
This thesis describes the application of mass spectrometry (MS) to glycoprotein and oligosaccharide analysis. Glycosylated proteins are involved in cell-cell and cell-matrix recognition. Applications of trypsin and proteinase K to hydrolyze glycoproteins into glycopeptides that are compatible...
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Differential 15N2-/14N2-isotope Dansylhydrazine Labeling and LC-MS for Quantification of the Human Carbonyl Metabolome
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The objective of this work was the design and use of paired labeling reagents that are chemically identical but isotopically different to provide a simple and robust means of quantitative mass spectrometry (MS) based metabolome profiling. Herein is presented the differential 15N2-/14N2-isotope...
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Development and Application of ESI-MS Based Techniques for Quantitative Determination of Protein-Carbohydrate Interactions
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This thesis describes the development and application of mass spectrometry methods to study protein-ligand interactions in vitro. Liquid sample desorption electrospray ionization mass spectrometry (liquid sample DESI-MS) was employed to quantify protein-carbohydrate interactions in aqueous buffer...
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Development of Isotope Labeling Liquid Chromatography Mass Spectrometry for Biofluid Metabolomics and Applications in Disease Studies
DownloadSpring 2014
Metabolomics is a research field focusing on global study of all the metabolites present in a biological system (i.e., the metabolome). Metabolome analysis involves identifying and quantifying as many small molecule metabolites as possible in a biological sample. Metabolomics has attracted much...
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Application of Electrospray Ionization Mass Spectrometry to Study Protein-Ligand Interactions and Enzyme Kinetics
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This thesis describes the development and application of electrospray ionization mass spectrometry (ESI-MS) to study the noncovalent protein-ligand interactions and also investigate the kinetic of enzymatic reactions. The rate of glycolipids cleavage by the human neuraminidase 3 (hNEU3) was...
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2011
Dingle, Tanis C., Szpacenko, Adam, Ng, Kenneth K.S., Kitov, Pavel, Klassen, John S., El-Hawiet, Amr, Kitova,Elena N., Mulvey, George L., Eugenio, Luiz, Armstrong, Glen D.
The binding of recombinant fragments of the C-terminal cell-binding domains of the two large exotoxins, toxin A (TcdA) and toxin B (TcdB), expressed by Clostridium difficile and a library consisting of the most abundant neutral and acidic human milk oligosaccharides (HMOs) was examined...
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2012
Klassen, John S., Lin, Hong, Kitova, Elena N., Ng, Kenneth K., Johnson, M. A., Eugenio, Luiz
Electrospray ionization mass spectrometry (ESI-MS) measurements were performed under a variety of solution conditions on a highly acidic sub-fragment (B3C) of the C-terminal carbohydrate-binding repeat region of Clostridium difficile toxin B, and two mutants (B4A and B4B) containing fewer acidic...