Collision cross sections of high-mannose N-glycans in commonly observed adduct states – identification of gas-phase conformers unique to [M − H]− ions

W. B. Struwe; J. L. Benesch; D. J. Harvey; K. Pagel

doi:10.1039/C5AN01092F

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Collision cross sections of high-mannose N-glycans in commonly observed adduct states – identification of gas-phase conformers unique to [M − H]⁻ ions

W. B. Struwe, J. L. Benesch, D. J. Harvey and K. Pagel
Analyst, 2015,140, 6799-6803
DOI: 10.1039/C5AN01092F, Communication

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Abstract | Cited by

We report collision cross sections (CCS) of high-mannose N-glycans as [M + Na]⁺, [M + K]⁺, [M + H]⁺, [M + Cl]⁻, [M + H₂PO₄]⁻ and [M − H]⁻ ions, measured by drift tube (DT) ion mobility-mass spectrometry (IM-MS) in helium and nitrogen gases. Further analysis using traveling wave (TW) IM-MS reveal the existence of distinct conformers exclusive to [M − H]⁻ ions.

Graphical abstract: Collision cross sections of high-mannose N-glycans in commonly observed adduct states – identification of gas-phase conformers unique to [M − H]− ions

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