Patent application number | Description | Published |
20100129843 | CHARACTERIZATION OF N-GLYCANS USING EXOGLYCOSIDASES - The present disclosure provides methods for analyzing structure and/or composition of N-glycans. Such methods often involve digestion of N-glycans with multiple exoglycosidases. In some embodiments, N-glycans are digested with multiple exoglycosidases simultaneously. In some embodiments, N-glycans are digested with multiple exoglycosidases sequentially. In some embodiments, methods in accordance with the present disclosure involve comparison of cleavage products of N-glycans that have been digested with multiple exoglycosidases simultaneously to N-glycans that have been digested with multiple exoglycosidases sequentially. | 05-27-2010 |
20100133430 | MS METHODS TO EVALUATE GLYCANS - The present disclosure provides, among other things, methods for the identification of sulfated glycans in a mixture of glycans. | 06-03-2010 |
20100151499 | PROTEOLYTIC RELEASE OF GLYCANS - The present disclosure provides strategies for analyzing protein-linked glycans, and particularly for analyzing glycans on cell surface glycoproteins. | 06-17-2010 |
20100151584 | MULTI-DIMENSIONAL CHROMATOGRAPHIC METHODS FOR SEPARATING N-GLYCANS - A multi-dimensional chromatographic method for the separation of N-glycans. The method comprises providing a glycan preparation that includes at least one negatively charged N-glycan. The glycan preparation is then separated by anion-exchange chromatography and at least one secondary chromatographic technique. | 06-17-2010 |
20100188084 | COMPARATIVE ANALYSIS OF PROTEIN CONFORMATIONS BY USING 2D NOESY NMR SPECTRA - The present disclosure provides a method for determining the relative conformations of a protein provided in different protein preparations, comprising steps of: (i) obtaining a first 2D NOESY NMR spectrum of a first protein preparation; (ii) obtaining a second 2D NOESY NMR spectrum of a second protein preparation; and (iii); determining whether a protein has a different conformation in the first and second protein preparations by comparing one or more cross-peaks in the first 2D NOESY NMR spectrum with one or more corresponding cross-peaks in the second 2D NOESY NMR spectrum. | 07-29-2010 |
20100196940 | METHODS RELATED TO CELL SURFACE GLYCOSYLATION - The present disclosure provides methods for assessing the glycosylation of a target glycoprotein produced by a cell through analysis of cell-surface glycans on the cell. The present disclosure therefore teaches that glycosylation of cell surface proteins can serve as a proxy for glycosylation of other proteins. | 08-05-2010 |
20100279269 | CHARACTERIZATION OF N-GLYCAN MIXTURES BY NUCLEAR MAGNETIC RESONANCE - The present disclosure provides nuclear magnetic resonance (NMR) methods for characterizing mixtures of N-linked glycans. Without limitation, methods of the present disclosure may be useful in characterizing monosaccharide composition, branching, fucosylation, sulfation, phosphorylation, sialylation linkages, presence of impurities and/or efficiency of a labeling procedure (e.g., labeling with a fluorophore such as 2-AB). In certain embodiments, the methods can be used quantitatively. In certain embodiments, the methods can be combined with enzymatic digestion to further characterize glycan mixtures. | 11-04-2010 |
20100279306 | ANALYSIS OF PHOSPHORYLATED GLYCANS, GLYCOPEPTIDES OR GLYCOPROTEINS BY IMAC - The present disclosure provides technologies for enriching, detecting, and/or quantifying phosphorylated glycans and/or glycoconjugates (e.g., glycopeptides, glycolipids, proteoglycans, etc.). Specifically, the present disclosure provides methods that utilize immobilized metal affinity chromatography (IMAC) to isolate and/or to characterize phosphorylated glycans. The present disclosure particularly provides methods for distinguishing sulfated and phosphorylated glycans. | 11-04-2010 |
20110136682 | ANTENNARY FUCOSYLATION IN GLYCOPROTEINS FROM CHO CELLS - The present invention provides methods of evaluating CHO cells and producing recombinant glycoproteins. | 06-09-2011 |
20110213137 | ISOTOPICALLY-LABELED GLYCANS - The present disclosure provides methods of making isotopically-labeled glycans or a mixture of glycans (e.g., a glycan preparation) via reductive amination. Such methods are useful, for example, in the determination of the relative amounts of a glycan species present in two or more glycoprotein preparations using mass spectroscopy. In one aspect, the present disclosure provides a method of making an isotopically-labeled glycan by a glycan with an amine and an isotopically-labeled reducing agent to provide an isotopically-labeled aminated glycan. In certain embodiments, the amine is an isotopically-labeled amine. | 09-01-2011 |
20110306075 | METHODS RELATED TO MODIFIED GLYCANS - Among other things, the present disclosure provides methods for enriching, identifying, and/or quantifying unusually modified glycans (e.g., phosphorylated glycans, sulfated glycans, and/or multi-acetylated glycans). In many embodiments, methods comprise providing a glycan preparation from which sialic acids have been released; subjecting the sialidase-treated glycan preparation to a separation technique that separates glycans based on charge-to-mass ratio; and quantifying the charged products using at least one quantification standard. | 12-15-2011 |
20120264927 | METHODS FOR LABELING GLYCANS - Methods for labeling glycans that include a step of freeze-drying a labeled glycan preparation. The labeled glycan preparation is maintained in a substantially frozen state for the duration of the freeze-drying process. | 10-18-2012 |
20120295273 | N-ACETYLHEXOSAMINE-CONTAINING N-GLYCANS IN GLYCOPROTEIN PRODUCTS - The present invention provides methods of evaluating a glycoprotein preparation for the absence, presence or amount of an N-acetylhexosamine glycan, e.g., an N-acetylglucosamine glycan. | 11-22-2012 |
20130029365 | MULTI-DIMENSIONAL CHROMATOGRAPHIC METHODS FOR SEPARATING N-GLYCANS - A multi-dimensional chromatographic method for the separation of N-glycans. The method comprises providing a glycan preparation that includes at least one negatively charged N-glycan. The glycan preparation is then separated by anion-exchange chromatography and at least one secondary chromatographic technique. | 01-31-2013 |
20130069645 | CHARACTERIZATION OF N-GLYCAN MIXTURES BY NUCLEAR MAGNETIC RESONANCE - The present disclosure provides nuclear magnetic resonance (NMR) methods for characterizing mixtures of N-linked glycans. Without limitation, methods of the present disclosure may be useful in characterizing monosaccharide composition, branching, fucosylation, sulfation, phosphorylation, sialylation linkages, presence of impurities and/or efficiency of a labeling procedure (e.g., labeling with a fluorophore such as 2-AB). In certain embodiments, the methods can be used quantitatively. In certain embodiments, the methods can be combined with enzymatic digestion to further characterize glycan mixtures. | 03-21-2013 |
20130123126 | SELECTION AND USE OF HOST CELLS FOR PRODUCTION OF GLYCOPROTEINS - A method of making a glycoprotein having a selected glycostructure. | 05-16-2013 |
20130184180 | CHARACTERIZATION OF N-GLYCANS USING EXOGLYCOSIDASES - The present disclosure provides methods for analyzing structure and/or composition of N-glycans. Such methods often involve digestion of N-glycans with multiple exoglycosidases. In some embodiments, N-glycans are digested with multiple exoglycosidases simultaneously. In some embodiments, N-glycans are digested with multiple exoglycosidases sequentially. In some embodiments, methods in accordance with the present disclosure involve comparison of cleavage products of N-glycans that have been digested with multiple exoglycosidases simultaneously to N-glycans that have been digested with multiple exoglycosidases sequentially. | 07-18-2013 |
20130231255 | HIGH MANNOSE GLYCANS - Methods and compositions related to high mannose glycans are described. | 09-05-2013 |
20140045212 | GAL ALPHA 1-3GAL-CONTAINING N-GLYCANS IN GLYCOPROTEIN PRODUCTS DERIVED FROM CHO CELLS - The present invention provides methods of evaluating CHO cells. | 02-13-2014 |
20140065716 | MULTI-DIMENSIONAL CHROMATOGRAPHIC METHODS FOR SEPARATING N-GLYCANS - A multi-dimensional chromatographic method for the separation of N-glycans. The method comprises providing a glycan preparation that includes at least one negatively charged N-glycan. The glycan preparation is then separated by anion-exchange chromatography and at least one secondary chromatographic technique. | 03-06-2014 |
20140112910 | MODIFIED GLYCOPROTEINS - Sulfated glycoproteins, and methods of making and using such sulfated glycoproteins, are described. | 04-24-2014 |
20140127735 | CHARACTERIZATION OF N-GLYCAN MIXTURES BY NUCLEAR MAGNETIC RESONANCE - The present disclosure provides nuclear magnetic resonance (NMR) methods for characterizing mixtures of N-linked glycans. Without limitation, methods of the present disclosure may be useful in characterizing monosaccharide composition, branching, fucosylation, sulfation, phosphorylation, sialylation linkages, presence of impurities and/or efficiency of a labeling procedure (e.g., labeling with a fluorophore such as 2-AB). In certain embodiments, the methods can be used quantitatively. In certain embodiments, the methods can be combined with enzymatic digestion to further characterize glycan mixtures. | 05-08-2014 |