Disaccharide analysis of glycosaminoglycans using hydrophilic interaction chromatography and mass spectrometry.

Disaccharide analysis of glycosaminoglycans using hydrophilic interaction chromatography and mass spectrometry.
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DOI:
10.1021/ac3030448
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发表时间:
2013-01-15
影响因子:
7.4
通讯作者:
Zaia, Joseph
Zaia, Joseph
中科院分区:
化学1区
文献类型:
--
作者:
Gill, Vanessa Leah;Aich, Udayanath;Rao, Srinivasa;Pohl, Chris;Zaia, Joseph

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硫酸乙酰肝素(HS)和硫酸软骨素/硫酸皮肤素(CS/DS)糖胺聚糖(GAG)参与许多重要的生物过程。HS和CS/DS的定量二糖分析对于GAG的表征是必不可少的,并且能够对GAG结构域结构进行建模。已经开发了涉及酶消化和化学解聚的方法来确定硫酸化/乙酰化修饰以及糖醛酸差向异构化的类型和位置。酶消化产生在非还原端具有Δ-4,5-不饱和度的二糖。用亚硝酸进行的化学解聚保留了糖醛酸差向异构化。这项工作表明,使用亲水相互作用液相色谱(HILIC)-MS的定量酶衍生和亚硝酸解聚产物的HS和CS/DS的结构分析。该方法使生物医学研究人员能够使用单个LC-MS平台确定GAG样品的完整二糖谱。
Heparan sulfate (HS) and chondroitin sulfate/dermatan sulfate (CS/DS) glycosaminoglycans (GAGs) participate in many important biological processes. Quantitative disaccharide analysis of HS and CS/DS is essential for the characterization of GAGs and enables modeling of the GAG domain structure. Methods involving enzymatic digestion and chemical depolymerization have been developed to determine the type and location of sulfation/acetylation modifications as well as uronic acid epimerization. Enzymatic digestion generates disaccharides with Δ-4,5-unsaturation at the non-reducing end. Chemical depolymerization with nitrous acid retains the uronic acid epimerization. This work shows the use of hydrophilic interaction liquid chromatography (HILIC)-MS for quantification of both enzyme-derived and nitrous acid depolymerization products for structural analysis of HS and CS/DS. This method enables biomedical researchers to determine complete disaccharide profiles on GAG samples using a single LC-MS platform.
DOI: 10.1016/s0021-9673(00)96972-3
发表时间: 1990-01-19
期刊: JOURNAL OF CHROMATOGRAPHY
影响因子: --
作者:
ALPERT, AJ
通讯作者: ALPERT, AJ
DOI: 10.1021/ac3016054
发表时间: 2012-09-04
影响因子: 7.4
作者:
Gill, Vanessa Leah;Wang, Qi;Shi, Xiaofeng;Zaia, Joseph
通讯作者: Zaia, Joseph
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