摘要:
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.
摘要:
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.
摘要:
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.
摘要:
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.
摘要:
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.
摘要:
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.
摘要:
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.
摘要:
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.