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Báo cáo khóa học: Determination by electrospray mass spectrometry and 1H-NMR spectroscopy of primary structures of variously fucosylated neutral oligosaccharides based on the iso-lacto-N-octaose core

Chia sẻ: Nguyen Thang | Ngày: | Loại File: PDF | Số trang:15

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We have isolated a nonfucosylated and three variously fucosylated neutral oligosaccharides from human milk that are based on theiso-lacto-N-octaose core. Their structures were characterized by the combined use of electrospray mass spectrometry (ES-MS) and NMR spectroscopy. The branching pattern and blood group-related Lewis deter-minants, together with partial sequences and linkages of these oligosaccharides, were initially elucidated by high-sensitivity ES-MS/MS analysis, and then their full structure assignment was completed by methylation analysis and 1 H-NMR. Three new structures were identified....

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Nội dung Text: Báo cáo khóa học: Determination by electrospray mass spectrometry and 1H-NMR spectroscopy of primary structures of variously fucosylated neutral oligosaccharides based on the iso-lacto-N-octaose core

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