Fast Fragmentation During Surface-Induced Dissociation: An Examination of Peptide Size and Structure

George L. Barnes,Amanda Shlaferman,Monica Strain

Chemical Physics Letters（2020）

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摘要

•Fast Fragmentation Events (FFE) decrease with peptide size.•FFE decrease may explain why shattering is infrequent in experiment.•KAn (n = 1,3,5)/AcKA7 favors a-ion formation during FFE.•AnK (n = 1,3,5)/AcA7K favors a-ion for small n and x-ion for large n.•Backbone rearrangements from FFE retain both N/C-termi, but lose atoms in the middle.

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关键词

Tandem mass spectrometry,Direct dynamics simulations,Surface-induced dissociation,Fast fragmentation events,Shattering

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