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- 6Affinity
- 6Norovirus
- 4Carbohydrates
- 2Affinities
- 2Affinity measurement
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2013
Jiang, Xi, Klassen, John S., Kitova, Elena N., Wang, Leyi, Han, Ling, Kitov, Pavel I., Xia, Ming, Tan, Ming
Noroviruses (NoVs), the major cause of viral acute gastroenteritis, recognize histo-blood group antigens (HBGAs) as receptors or attachment factors. To gain a deeper understanding of the interplay between NoVs and their hosts, the affinities of recombinant P dimers (P2's) of a GII.4 NoV (VA387)...
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Dissociation kinetics of the streptavidin-biotin interaction measured using direct electrospray ionization mass spectrometry analysis
Download2013
Kitova, Elena N., Klassen, John S., Deng, Lu
Dissociation rate constants (koff) for the model high affinity interaction between biotin (B) and the homotetramer of natural core streptavidin (S4) were measured at pH 7 and temperatures ranging from 15 to 45 °C using electrospray ionization mass spectrometry (ESI-MS). Two different approaches...
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Reliable determinations of protein-ligand interactions by direct ESI-MS measurements: Are we there yet?
Download2012
El-Hawiet, Amr, Klassen, John S., Kitova, Elena N., Schnier, Paul D.
The association-dissociation of noncovalent interactions between protein and ligands, such as other proteins, carbohydrates, lipids, DNA, or small molecules, are critical events in many biological processes. The discovery and characterization of these interactions is essential to a complete...
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2015
Boraston, Alisdair, B., Kitova, Elena N., Klassen, John S., Tan, Ming, Pluvinage, Benjamin, Han, Ling, Jiang, Xi
The binding profiles of many human noroviruses (huNoVs) for human histo-blood group antigens have been characterized. However, quantitative-binding data for these important virus–host interactions are lacking. Here, we report on the intrinsic (per binding site) affinities of HBGA oligosaccharides...
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Quantifying protein-fatty acid interactions using electrospray ionization mass spectrometry
Download2011
Liu, Lan, Kitova, Elena N., Klassen, John S.
The application of the direct electrospray ionization mass spectrometry (ESI-MS) assay to quantify interactions between bovine β-lactoglobulin (Lg) and a series of fatty acids (FA), CH3(CH2)xCOOH, where x = 6 (caprylic acid, CpA), 8 (capric acid, CA), 10 (lauric acid, LA), 12 (myristic acid, MA),...
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Measuring positive cooperativity using the direct ESI-MS assay: Cholera toxin B subunit homopentamer binding to GM1 pentasaccharide
Download2014
Lin, Hong, Klassen, John S., Kitova, Elena N.
Direct electrospray ionization mass spectrometry (ESI-MS) assay was used to investigate the stepwise binding of the GM1 pentasaccharide β-D-Galp-(1→3)-β-D-GalpNAc-(1→4)[α-D-Neu5Ac-(2→3)]-β-D-Galp-(1→4)-β-D-Glcp (GM1os) to the cholera toxin B subunit homopentamer (CTB5) and to establish...
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Quantifying protein-fatty acid interactions using electrospray ionization mass spectrometry
Download2011
Klassen, John S., Kitova, Elena N., Liu, Lan
The application of the direct electrospray ionization mass spectrometry (ESI-MS) assay to quantify interactions between bovine β-lactoglobulin (Lg) and a series of fatty acids (FA), CH3(CH2)xCOOH, where x = 6 (caprylic acid, CpA), 8 (capric acid, CA), 10 (lauric acid, LA), 12 (myristic acid, MA),...
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2015
El-Hawiet, Amr, Klassen, John S., N. Kitova, Elena N.
The affinities of the most abundant oligosaccharides found in human milk for four bacterial exotoxins (from Vibrio cholerae and pathogenic Escherichia coli) were quantified for the first time. Association constants (Ka) for a library of 20 human milk oligosaccharides (HMOs) binding to Shiga toxin...
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2013
Klassen, John S., Xia, Ming, Tan, Ming, Wang, Leyi, Han, Ling, Kitova, Elena N., Jiang, Xi, Kitov, Pavel I.
Noroviruses (NoVs), the major cause of viral acute gastroenteritis, recognize histo-blood group antigens (HBGAs) as receptors or attachment factors. To gain a deeper understanding of the interplay between NoVs and their hosts, the affinities of recombinant P dimers (P2's) of a GII.4 NoV (VA387)...
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Carbohydrate-lipid interactions: Affinities of methylmannose polysaccharides for lipids in aqueous solution
Download2012
Sun, Nian, Klassen, John S., Bai, Yu, Liu, Lan, Xia, Li, Lowary, Todd L.
The interactions between 3-O-methyl-mannose polysaccharides (MMPs), extracted from Mycobacterium smegmatis (consisting of a mixture of MMP-10, -11, -12 and -13) or obtained by chemical synthesis (MMP-5s, -8s, -11s and -14s), and linear saturated and unsaturated fatty acids (FAs), and a commercial...