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

Literature Information

Publication Date 2015-07-07
DOI 10.1039/C5AN01092F
Impact Factor 4.616
Authors

W. B. Struwe, J. L. Benesch, D. J. Harvey


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Abstract

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.

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