Analysis of high-mannose-type oligosaccharides by microliquid chromatography-mass spectrometry and capillary electrophoresis

Antonius Koller, Julia Khandurina, Jincai Li, Joel Kreps, David Schieltz, A. Guttman

Research output: Contribution to journalArticle

26 Citations (Scopus)

Abstract

We report on microbore liquid chromatography (μLC) and capillary electrophoresis (CE) separation of glycopeptides and high-mannose-type oligosaccharides, digested from recombinant phospholipase C, expressed in Pichia pastoris. The glycopeptides were subject to μLC/electrospray ionization/mass spectrometry (ESI-MS) and μLC/ESI-tandem MS (MS/MS) analysis that revealed high-mannose structure size variation between Man7GlcNAc2 and Man14GlcNAc2. Then, high-performance CE was applied to identify possible positional isomers of the high-mannose structures. For the CE experiments, the oligosaccharides were released from the glycoproteins by peptide-N-glycosidase F and labeled with 1-aminopyrene-3,6,8-trisulfonic acid (APTS). Excellent separation of the possible positional isomers was attained, suggesting one for Man9-GlcNAc2, two for Man10GlcNAc2, three for Man11GlcNAc2, Man12GlcNAc2, and Man13-GlcNAc2, and two for Man14GlcNAc2. The CE results provided complementary information to the μLC/ESI-MS and MS/MS data with respect to the possible number of positional isomers.

Original languageEnglish
Pages (from-to)2003-2009
Number of pages7
JournalElectrophoresis
Volume25
Issue number13
DOIs
Publication statusPublished - Jul 2004

Fingerprint

Capillary electrophoresis
Liquid chromatography
Capillary Electrophoresis
Mannose
Chromatography
Oligosaccharides
Liquid Chromatography
Mass spectrometry
Mass Spectrometry
Isomers
Electrospray ionization
Electrospray Ionization Mass Spectrometry
Glycopeptides
Mannosyl-Glycoprotein Endo-beta-N-Acetylglucosaminidase
Pichia
Type C Phospholipases
Glycoproteins
Experiments

Keywords

  • Capillary electrophoresis
  • Glycopeptides
  • Microbore liquid chromatography-mass spectrometry
  • Oligossacharides

ASJC Scopus subject areas

  • Clinical Biochemistry

Cite this

Analysis of high-mannose-type oligosaccharides by microliquid chromatography-mass spectrometry and capillary electrophoresis. / Koller, Antonius; Khandurina, Julia; Li, Jincai; Kreps, Joel; Schieltz, David; Guttman, A.

In: Electrophoresis, Vol. 25, No. 13, 07.2004, p. 2003-2009.

Research output: Contribution to journalArticle

Koller, Antonius ; Khandurina, Julia ; Li, Jincai ; Kreps, Joel ; Schieltz, David ; Guttman, A. / Analysis of high-mannose-type oligosaccharides by microliquid chromatography-mass spectrometry and capillary electrophoresis. In: Electrophoresis. 2004 ; Vol. 25, No. 13. pp. 2003-2009.
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