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Skip to Search Results- 67Klassen, John S.
- 50Kitova, Elena N.
- 17Serpe, Michael J.
- 13Macauley, Matthew S.
- 12Liu, Lan
- 10El-Hawiet, Amr
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1989-01-01
Loppnow, Glen R., Mathies, Richard A.
A 77‐K cold stage has been developed for spectroscopic measurements in an optical microscope. This stage eliminates fogging of the optical windows observed in an earlier design by adding vacuum jackets around the liquid nitrogen transfer lines and by maximizing the sample‐to‐environment distance...
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1998-01-01
Mitambo, Mitambo M., Zhang, Shuliang L., Loppnow, Glen R.
A novel four nuclear magnetic resonance (NMR)-tube holder is described for quantitative Raman and resonance Raman spectroscopy. This cell has advantages over other divided cell designs in producing high precision quantitation and eliminating off-axis errors. Raman spectra were obtained for both...
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Excited-state Dynamics of Alizarin-Sensitized TiO2 Nanoparticles from Resonance Raman Spectroscopy
Download2002-01-01
Shoute, Lian C. T., Loppnow, Glen R.
Resonance Raman spectra of alizarin-sensitized TiO2 nanoparticles have been obtained at excitation wavelengths throughout the 488-nm charge transfer absorption band. The resonance Raman spectrum of the alizarin-sensitized TiO2 nanoparticle is significantly different from the spectrum of free...
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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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O-GlcNAcase uses substrate-assisted catalysis Kinetic analysis and development of highly selective mechanism-inspired inhibitors
Download2005
Vocadlo, David J., Whitworth, Garrett E., Macauley, Matthew S., Debowski, Aleksandra W., Chin, Danielle
The post-translational modification of serine and threonine residues of nucleocytoplasmic proteins with 2-acetamido-2-deoxy-d-glucopyranose (GlcNAc) is a reversible process implicated in multiple cellular processes. The enzyme O-GlcNAcase catalyzes the cleavage of β-O-linked GlcNAc (O-GlcNAc)...
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Beads-on-a-string, characterization of ETS-1 sumoylated within its flexible N-terminal sequence
Download2006
Mackereth, Cameron D., Graves, Barbara J., Macauley, Matthew S., Schärpf, Manuela, McIntosh, Lawrence P. , Blaszczak, Adam G., Errington, Wesley J.
Sumoylation regulates the activities of several members of the ETS transcription factor family. To provide a molecular framework for understanding this regulation, we have characterized the conjugation of Ets-1 with SUMO-1. Ets-1 is modified in vivo predominantly at a consensus sumoylation motif...
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Elevation of global O-GlcNAc levels in 3T3-L1 adipocytes by selective inhibition of O-GlcNAcase does not induce insulin resistance
Download2008
Bubb, Abigail K., Macauley, Matthew S., Davies, Gideon J., Vocadlo, David J. , Martinez-Fleites, Carlos
The O-GlcNAc post-translational modification is considered to act as a sensor of nutrient flux through the hexosamine biosynthetic pathway. A cornerstone of this hypothesis is that global elevation of protein O-GlcNAc levels, typically induced with the non-selective O-GlcNAcase inhibitor PUGNAc...
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Comparative study of substrate and product binding to the human ABO(H) blood group glycosyltransferases
Download2009
Klassen, John S., Shoemaker, Glen K., Palcic, Monica M., Soya, Naoto
The first comparative thermodynamic study of the human blood group glycosyltransferases, α-(1→3)-N-acetylgalactosaminyltransferase (GTA) and α-(1→3)-galactosyltransferase (GTB), interacting with donor substrates, donor and acceptor analogs, and trisaccharide products in vitro is reported. The...
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COMPARISON OF PEAK INTEGRATION METHODS FOR THE DETERMINATION OF ENANTIOMERIC FRACTION IN ENVIRONMENTAL SAMPLES
COMPARISON OF PEAK INTEGRATION METHODS FOR THE DETERMINATION OF ENANTIOMERIC FRACTION IN ENVIRONMENTAL SAMPLES
Download2009-01-01
Brian J. Asher, Lisa A. D’Agostino, Jenilee D. Way, Charles S. Wong, and James J. Harynuk
Enantiomeric fractions (EFs) are used extensively in environmental pollutant research because of the insights on biochemical weathering available from quantifying enantiomeric composition. While this analysis is powerful, it can also be subject to significant error, depending on how...
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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...