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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 22, Number 3
BKCSDE 22(3)
March 20, 2001

Title	A Conformational Study of Oligosaccharides Investigated by Tandem Mass Spectrometry and Molecular Modeling
Author	Eunsun Yoo Yoon
Keywords	Oligosaccharides, Tandem mass spectrometry, Molecular modeling.
Abstract	The purpose of this paper is to introduce the simplified linkage position determination method using tandem mass spectrometry combined with molecular modeling study. Using low energy tandem mass spectrometric experiments and molecular modeling, it has been suggested that significant differences in glycosidic bond cleavage may occur due not only to ionic considerations but also may have contributions from steric hindrance of the absorbance of collision energy, leading to a statistically higher bond cleavage for sterically crowded linkages. Permethylated derivatives of the linkage-isomeric trisaccharides give useful fragmentation ratios and productions, including a 3-linkage specific ion. The ratios of fragment ions are related to the ability of each linkage position in the oligosaccharide to absorb collisional energy.
Page	293 - 297
Full Text	PDF

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