Mass spectrometry is a promising tool for both qualitative and quantitative analysis of glycans owing to mass accuracy, efficiency, and reproducibility, but it has been of limited success in quantitative analysis for both neutral and sialylated glycans in a high-throughput manner. Here, we present an improved high-throughput N-glycan preparation method that enables N-glycan liberation to permethylation using a stack of three 96-well plates (i.e., PVDF, PGC, and sodium hydroxide plates). N-glycans from chicken ovalbumin glycoprotein and porcine thyroglobulin glycoprotein have been identified by using this high-throughput system. Moreover, the absolute quantity of total N-glycans including neutral and sialylated oligosaccharides was determined using internal standards. Finally, we applied this technique to confirm the N-glycan from human serum prostate specific antigen (PSA). To the best of our knowledge, this study presents a first attempt to develop an in situ N-glycan preparation method with a high-throughput platform.
한국생물공학회 [The Korean Society for Biotechnology and Bioengineering]
설립연도
1984
분야
공학>생물공학
소개
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