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Synthesis and structural investigation of a series of mannose-containing oligosaccharides using mass spectrometry
Stockholms universitet, Naturvetenskapliga fakulteten, Institutionen för organisk kemi.
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Antal upphovsmän: 62018 (Engelska)Ingår i: Organic and biomolecular chemistry, ISSN 1477-0520, E-ISSN 1477-0539, Vol. 16, nr 2, s. 228-238Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

A series of compounds associated with naturally occurring and biologically relevant glycans consisting of alpha-mannosides were prepared and analyzed using collision-induced dissociation (CID), energy-resolved mass spectrometry (ERMS), and H-1 nuclear magnetic resonance spectroscopy. The CID experiments of sodiated species of disaccharides and ERMS experiments revealed that the order of stability of mannosyl linkages was as follows: 6-linked > 4-linked >= 2-linked > 3-linked mannosyl residues. Analysis of linear trisaccharides revealed that the order observed in disaccharides could be applied to higher glycans. A branched trisaccharide showed a distinct dissociation pattern with two constituting disaccharide ions. The estimation of the content of this ion mixture was possible using the disaccharide spectra. The hydrolysis of mannose linkages at 3- and 6-positions in the branched trisaccharide revealed that the 3-linkage was cleaved twice as fast as the 6-linkage. It was observed that the solution-phase hydrolysis and gas-phase dissociation have similar energetics.

Ort, förlag, år, upplaga, sidor
2018. Vol. 16, nr 2, s. 228-238
Nationell ämneskategori
Organisk kemi
Identifikatorer
URN: urn:nbn:se:su:diva-152728DOI: 10.1039/c7ob02723kISI: 000419388500009PubMedID: 29234770OAI: oai:DiVA.org:su-152728DiVA, id: diva2:1182138
Tillgänglig från: 2018-02-12 Skapad: 2018-02-12 Senast uppdaterad: 2018-02-12Bibliografiskt granskad

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Kanie, Y.Ito, Y.Widmalm, GöranKanie, O.
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Institutionen för organisk kemi
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Organic and biomolecular chemistry
Organisk kemi

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