CHARACTERIZATION OF N-GLYCAN MIXTURES BY NUCLEAR MAGNETIC RESONANCE
    22.
    发明申请
    CHARACTERIZATION OF N-GLYCAN MIXTURES BY NUCLEAR MAGNETIC RESONANCE 有权
    通过核磁共振表征N-甘氨酸混合物

    公开(公告)号:US20100279269A1

    公开(公告)日:2010-11-04

    申请号:US12595940

    申请日:2008-04-15

    IPC分类号: C12Q1/25 G01R33/44

    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.

    摘要翻译: 本公开提供用于表征N-连接聚糖混合物的核磁共振(NMR)方法。 不限于此,本公开的方法可用于表征单糖组成,支化,岩藻糖基化,硫酸化,磷酸化,唾液酸化连接,杂质的存在和/或标记过程的效率(例如,用诸如2-AB的荧光团进行标记 )。 在某些实施方案中,可以定量地使用这些方法。 在某些实施方案中,所述方法可与酶消化组合以进一步表征聚糖混合物。

    COMPARATIVE ANALYSIS OF PROTEIN CONFORMATIONS BY USING 2D NOESY NMR SPECTRA
    23.
    发明申请
    COMPARATIVE ANALYSIS OF PROTEIN CONFORMATIONS BY USING 2D NOESY NMR SPECTRA 有权
    使用二维核磁共振谱对蛋白质结构进行比较分析

    公开(公告)号:US20100188084A1

    公开(公告)日:2010-07-29

    申请号:US12595867

    申请日:2008-04-15

    IPC分类号: G01R33/48

    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.

    摘要翻译: 本公开提供了用于确定不同蛋白质制剂中提供的蛋白质的相对构象的方法,包括以下步骤:(i)获得第一蛋白质制剂的第一2D NOESY NMR光谱; (ii)获得第二种蛋白质制剂的第二种二维核磁共振谱; 和(iii); 通过将第一2D NOESY NMR光谱中的一个或多个交叉峰与第二2D NOESY NMR光谱中的一个或多个相应的交叉峰进行比较来确定蛋白质在第一和第二蛋白质制剂中是否具有不同的构象。

    ISOTOPICALLY-LABELED GLYCANS
    29.
    发明申请
    ISOTOPICALLY-LABELED GLYCANS 审中-公开
    等同标签的糖果

    公开(公告)号:US20110213137A1

    公开(公告)日:2011-09-01

    申请号:US12595888

    申请日:2008-04-15

    IPC分类号: C07B59/00 G01N30/72 C12Q1/02

    CPC分类号: C07B59/005 Y10T436/143333

    摘要: 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.

    摘要翻译: 本公开提供通过还原胺化制备同位素标记的聚糖或聚糖混合物(例如聚糖制备物)的方法。 这样的方法可用于例如使用质谱测定存在于两种或更多种糖蛋白制剂中的聚糖物质的相对量。 一方面,本公开提供了通过聚糖与胺和同位素标记的还原剂制备同位素标记的聚糖以提供同位素标记的胺化聚糖的方法。 在某些实施方案中,胺是同位素标记的胺。