Abstract
A new technique for determining sequence and linkage information of underivatized oligosaccharides is developed using alkaline degradation and matrix-assisted laser desorption/ionization Fourier transform mass spectrometry (MALDI-FTMS). Alkaline degradation (also known as the "peeling" reaction) is a chemical degradation technique that only cleaves the glycosidic bond at the reducing end by β-elimination to yield a new reducing end. The reaction products are sampled directly with minimal cleanup and monitored by MALDI-FTMS to elucidate the oligosaccharide sequence. Linkage information is provided by cross-ring cleavage fragmentation of the new reducing ends, created by either MALDI source fragmentation or sustained off-resonance irradiation collisioninduced dissociation. This method is illustrated by the successful sequence and linkage determination of neutral, branched, fucosylated, and siatylated oligosaccharides. Experiments on differently linked disaccharides are also performed to determine the specificity of the cross-ring cleavage reactions. The power of this technique is enhanced by the Fourier transform mass analyzer, which provides high-resolution, exact mass, and facile tandem mass spectrometry experiments of MALDI-produced ions.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 663-672 |
| Number of pages | 10 |
| Journal | Analytical Chemistry |
| Volume | 70 |
| Issue number | 4 |
| State | Published - Feb 15 1998 |
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ASJC Scopus subject areas
- Analytical Chemistry
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Alkaline Degradation of Oligosaccharides Coupled with Matrix-Assisted Laser Desorption/Ionization Fourier Transform Mass Spectrometry : A Method for Sequencing Oligosaccharides. / Cancilla, Mark T.; Penn, Sharron G.; Lebrilla, Carlito B.
In: Analytical Chemistry, Vol. 70, No. 4, 15.02.1998, p. 663-672.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Alkaline Degradation of Oligosaccharides Coupled with Matrix-Assisted Laser Desorption/Ionization Fourier Transform Mass Spectrometry
T2 - A Method for Sequencing Oligosaccharides
AU - Cancilla, Mark T.
AU - Penn, Sharron G.
AU - Lebrilla, Carlito B
PY - 1998/2/15
Y1 - 1998/2/15
N2 - A new technique for determining sequence and linkage information of underivatized oligosaccharides is developed using alkaline degradation and matrix-assisted laser desorption/ionization Fourier transform mass spectrometry (MALDI-FTMS). Alkaline degradation (also known as the "peeling" reaction) is a chemical degradation technique that only cleaves the glycosidic bond at the reducing end by β-elimination to yield a new reducing end. The reaction products are sampled directly with minimal cleanup and monitored by MALDI-FTMS to elucidate the oligosaccharide sequence. Linkage information is provided by cross-ring cleavage fragmentation of the new reducing ends, created by either MALDI source fragmentation or sustained off-resonance irradiation collisioninduced dissociation. This method is illustrated by the successful sequence and linkage determination of neutral, branched, fucosylated, and siatylated oligosaccharides. Experiments on differently linked disaccharides are also performed to determine the specificity of the cross-ring cleavage reactions. The power of this technique is enhanced by the Fourier transform mass analyzer, which provides high-resolution, exact mass, and facile tandem mass spectrometry experiments of MALDI-produced ions.
AB - A new technique for determining sequence and linkage information of underivatized oligosaccharides is developed using alkaline degradation and matrix-assisted laser desorption/ionization Fourier transform mass spectrometry (MALDI-FTMS). Alkaline degradation (also known as the "peeling" reaction) is a chemical degradation technique that only cleaves the glycosidic bond at the reducing end by β-elimination to yield a new reducing end. The reaction products are sampled directly with minimal cleanup and monitored by MALDI-FTMS to elucidate the oligosaccharide sequence. Linkage information is provided by cross-ring cleavage fragmentation of the new reducing ends, created by either MALDI source fragmentation or sustained off-resonance irradiation collisioninduced dissociation. This method is illustrated by the successful sequence and linkage determination of neutral, branched, fucosylated, and siatylated oligosaccharides. Experiments on differently linked disaccharides are also performed to determine the specificity of the cross-ring cleavage reactions. The power of this technique is enhanced by the Fourier transform mass analyzer, which provides high-resolution, exact mass, and facile tandem mass spectrometry experiments of MALDI-produced ions.
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M3 - Article
C2 - 9491751
AN - SCOPUS:0032519044
VL - 70
SP - 663
EP - 672
JO - Analytical Chemistry
JF - Analytical Chemistry
SN - 0003-2700
IS - 4
ER -