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Skip to Search Results- 20Electrospray ionization mass spectrometry
- 12Affinity
- 10Carbohydrates
- 9Complexes
- 6Binding
- 6Mass-spectrometry
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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...
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2014
Kitova, Elena N., Klassen, John S., Michelsen, Klaus, Liu, Lan, Schnier, Paul D., Baergen, Alyson
This work explores the energetics of intermolecular H-bonds inside a hydrophobic protein cavity. Kinetic measurements were performed on the gaseous deprotonated ions (at the −7 charge state) of complexes of bovine β-lactoglobulin (Lg) and three monohydroxylated analogs of palmitic acid (PA):...
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2014
Kitova, Elena N., Klassen, John S., Michelsen, Klaus, Liu, Lan, Schnier, Paul D., Baergen, Alyson
This work explores the energetics of intermolecular H-bonds inside a hydrophobic protein cavity. Kinetic measurements were performed on the gaseous deprotonated ions (at the −7 charge state) of complexes of bovine β-lactoglobulin (Lg) and three monohydroxylated analogs of palmitic acid (PA):...
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Exploiting bacterial glycosylation machineries for the synthesis of a Lewis antigen-containing glycoprotein
Download2011
Hug, Isabelle, Reiz, Bela, Fentabil, Messele A., Klassen, John S., Whittal, Randy M., Zheng, Blake, Feldman, Mario F.
Glycoproteins constitute a class of compounds of increasing importance for pharmaceutical applications. The manipulation of bacterial protein glycosylation systems from Gram-negative bacteria for the synthesis of recombinant glycoproteins is a promising alternative to the current production...
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2014
Klassen, John S., Derda, Ratmir, Ng, Simon, Bailey, Justin, Baergen, Alyson, Liu, Lan, Jalili, Nobar
This paper reports on the first experimental study of the energies of noncovalent fluorine bonding in a protein-ligand complex in the absence of solvent. Arrhenius parameters were measured for the dissociation of gaseous deprotonated ions of complexes of bovine β-lactoglobulin (Lg), a model...
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2014
Klassen, John S., Ng, Simon, Liu, Lan, Bailey, Justin, Derda, Ratmir, Baergen, Alyson, Jalili, Nobar
This paper reports on the first experimental study of the energies of noncovalent fluorine bonding in a protein-ligand complex in the absence of solvent. Arrhenius parameters were measured for the dissociation of gaseous deprotonated ions of complexes of bovine β-lactoglobulin (Lg), a model...
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Identifying carbohydrate ligands of a norovirus P particle using a catch and release electrospray ionization mass spectrometry assay
Download2014
Jiang, Xi, Kitova, Elena N., Klassen, John S., Tan, Ming, Han, Ling
Noroviruses (NoVs), the major cause of epidemic acute gastroenteritis, recognize human histo-blood group antigens (HBGAs), which are present as free oligosaccharides in bodily fluid or glycolipids and glycoproteins on the surfaces of cells. The subviral P particle formed by the protruding (P)...
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Identifying carbohydrate ligands of a norovirus P particle using a catch and release electrospray ionization mass spectrometry assay
Download2014
Jiang, Xi, Kitova, Elena N., Klassen, John S., Tan, Ming, Han, Ling
Noroviruses (NoVs), the major cause of epidemic acute gastroenteritis, recognize human histo-blood group antigens (HBGAs), which are present as free oligosaccharides in bodily fluid or glycolipids and glycoproteins on the surfaces of cells. The subviral P particle formed by the protruding (P)...
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Identifying nonspecific ligand binding in electrospray ionization mass spectrometry using the reporter molecule method
Download2009
Sun, Nian, Klassen, John S., Kitova, Elena N., Sun, Jiangxiao
The application of the reporter molecule (Mrep) method for identifying nonspecific complexes in the ES-MS analysis of protein-ligand and DNA-ligand interactions in vitro is described. To test the reliability of the method, it was applied to the ES-MS analysis of protein-carbohydrate complexes...