Infrared multiphoton dissociation of O-linked mucin-type oligosaccharides

Jinhua Zhang, Katherine Schubothe, Bensheng Li, Scott Russell, Carlito B Lebrilla

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63 Citations (Scopus)

Abstract

Oligosaccharides are known to play important roles in many biological processes. In the study of oligosaccharides, collision-induced dissociation (CID) is the most common dissociation method to elucidate the sequence and connectivity. However, a disadvantage of CID is the decrease in both the degree and efficiency of dissociation with increasing mass. In the present study, we have successfully performed infrared multiphoton dissociation (IRMPD) on 39 O-linked mucin-type oligosaccharide alditols (both neutral and anionic). CID and IRMPD spectra of several oligosaccharides were also compared. They yielded nearly identical fragment ions corresponding to the lowest energy fragmentation pathways. The characteristic fragmentations of structural motifs, which can provide the linkage information, were similarly presented in both CID and IRMPD spectra. Multistage of CID (MS3 or MS4) is commonly needed to completely sequence the oligosaccharides, while IRMPD of the same compounds yielded the fragment ions corresponding to the loss of the first residue to the last residue during a single-stage tandem MS (MS2). Finally, it is shown that the fragmentation efficiency of IRMPD increases with the increasing size of oligosaccharides.

Original languageEnglish (US)
Pages (from-to)208-214
Number of pages7
JournalAnalytical Chemistry
Volume77
Issue number1
DOIs
StatePublished - Jan 1 2005

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Mucins
Oligosaccharides
Infrared radiation
Ions
Sugar Alcohols

ASJC Scopus subject areas

  • Analytical Chemistry

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Zhang, J., Schubothe, K., Li, B., Russell, S., & Lebrilla, C. B. (2005). Infrared multiphoton dissociation of O-linked mucin-type oligosaccharides. Analytical Chemistry, 77(1), 208-214. https://doi.org/10.1021/ac0489824

Infrared multiphoton dissociation of O-linked mucin-type oligosaccharides. / Zhang, Jinhua; Schubothe, Katherine; Li, Bensheng; Russell, Scott; Lebrilla, Carlito B.

In: Analytical Chemistry, Vol. 77, No. 1, 01.01.2005, p. 208-214.

Research output: Contribution to journalArticle

Zhang, J, Schubothe, K, Li, B, Russell, S & Lebrilla, CB 2005, 'Infrared multiphoton dissociation of O-linked mucin-type oligosaccharides', Analytical Chemistry, vol. 77, no. 1, pp. 208-214. https://doi.org/10.1021/ac0489824
Zhang, Jinhua ; Schubothe, Katherine ; Li, Bensheng ; Russell, Scott ; Lebrilla, Carlito B. / Infrared multiphoton dissociation of O-linked mucin-type oligosaccharides. In: Analytical Chemistry. 2005 ; Vol. 77, No. 1. pp. 208-214.
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