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Protein-glycolipid interactions studied in vitro using ESI-MS and nanodiscs: Insights into the mechanisms and energetics of binding
Download2015
Nikjah, Sanaz, Boraston, Alisdair B., Lin, Hong, Kitova, Elena N., Li, Jun, Pluvinage, Benjamin, Han, Ling Han, Klassen, John S.
Electrospray ionization-mass spectrometry (ESI-MS) analysis combined with the use of nanodiscs (NDs) to solubilize glycolipids (GLs) has recently emerged as a promising analytical method for detecting protein–GL interactions in vitro and, when applied to libraries of GLs, ranking their...
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Quantifying labile protein-ligand interactions using electrospray ionization mass spectrometry
Download2010
El-Hawiet, Amr, Klassen, John S., Kitova, Elena N., Liu, Lan
A new electrospray ionization mass spectrometry (ES-MS) approach for quantifying protein—ligand complexes that are prone to in-source (gas-phase) dissociation is described. The method, referred to here as the reference ligand ES-MS method, is based on the direct ES-MS assay and competitive ligand...
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Quantifying labile protein-ligand interactions using electrospray ionization mass spectrometry
Download2010
El-Hawiet, Amr, Liu, Lan, Klassen, John S., Kitova, Elena N.
A new electrospray ionization mass spectrometry (ES-MS) approach for quantifying protein—ligand complexes that are prone to in-source (gas-phase) dissociation is described. The method, referred to here as the reference ligand ES-MS method, is based on the direct ES-MS assay and competitive ligand...
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Screening anti-cancer drugs against tubulin using catch-and-release electrospray ionization mass spectrometry
Download2016
Kitova, Elena N., Klassen, John S., Winter, Philip, Tuszynski, Jack A., Darestani, Reza R.
Tubulin, which is the building block of microtubules, plays an important role in cell division. This critical role makes tubulin an attractive target for the development of chemotherapeutic drugs to treat cancer. Currently, there is no general binding assay for tubulin–drug interactions. The...
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Screening anti-cancer drugs against tubulin using catch-and-release electrospray ionization mass spectrometry
Download2016
Kitova, Elena N., Klassen, John S., Winter, Philip, Tuszynski, Jack A., Darestani, Reza R.
Tubulin, which is the building block of microtubules, plays an important role in cell division. This critical role makes tubulin an attractive target for the development of chemotherapeutic drugs to treat cancer. Currently, there is no general binding assay for tubulin–drug interactions. The...
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Screening oligosaccharide libraries against lectins using the proxy protein electrospray ionization mass spectrometry assay
Download2016
Kitova, Elena N., Klassen, John S., Fan, Xuxin, Privé, Gilbert G., Cairo, Christopher W., Xiong, Zi Jian, Ng, Kenneth K. S., Zou, Chunxia, Eugenio, Luiz, Li, Jun
An electrospray ionization mass spectrometry (ESI-MS) assay for screening carbohydrate libraries against lectins is described. The assay is based on the proxy protein ESI-MS method, which combines direct ESI-MS protein–ligand binding measurements and competitive protein binding, to simultaneously...
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Screening oligosaccharide libraries against lectins using the proxy protein electrospray ionization mass spectrometry assay
Download2016
Privé, Gilbert G., Ng, Kenneth K. S., Xiong, Zi Jian, Klassen, John S., Kitova, Elena N., Fan, Xuxin, Li, Jun, Zou, Chunxia, Eugenio, Luiz, Cairo, Christopher W.
An electrospray ionization mass spectrometry (ESI-MS) assay for screening carbohydrate libraries against lectins is described. The assay is based on the proxy protein ESI-MS method, which combines direct ESI-MS protein–ligand binding measurements and competitive protein binding, to simultaneously...
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2004
Okon, Mark, Schulman, Brenda A., Macauley, Matthew S., McIntosh, Lawrence P., Mackereth, Cameron D., Schärpf, Manuela, Errington, Wesley J.
Although sumoylation regulates a diverse and growing number of recognized biological processes, the molecular mechanisms by which the covalent attachment of the ubiquitin-like protein SUMO can alter the properties of a target protein remain to be established. To address this question, we have...
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2014
Marcondes, Maria C. G., Macauley, Matthew S., Pang, Poh-Choo, Bortell, Nikki, Arlian, Britni M., Rillahan, Cory D., Haslam, Stuart M., Dell, Anne , Paulson, James C.
Sialic acid terminates glycans of glycoproteins and glycolipids that play numerous biological roles in health and disease. Although genetic tools are available for interrogating the effects of decreased or abolished sialoside expression in mice, pharmacological inhibition of the sialyltransferase...
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The procambium specification gene Oshox1 promotes polar auxin transport capacity and reduces its sensitivity toward inhibition
Download2002
Meijer, A. H., Reub, S., Boot, K. J. M., Scarpella, E.
The auxin-inducible homeobox gene Oshox1 of rice (Oryza sativa) is a positive regulator of procambial cell fate commitment, and its overexpression reduces the sensitivity of polar auxin transport (PAT) to the PAT inhibitor 1-N-naphthylphthalamic acid (NPA). Here, we show that wild-type rice...