Journal
INTERNATIONAL JOURNAL OF MASS SPECTROMETRY
Volume 298, Issue 1-3, Pages 111-118Publisher
ELSEVIER
DOI: 10.1016/j.ijms.2009.10.009
Keywords
Peptide and protein complex secondary structure; Protein oligomers; Ion-helium collision cross-section; Ion mobility spectrometry; Protein docking; Cluster analysis
Funding
- Robert A. Welch Foundation [A-1176]
- U.S. Department of Energy, Division of Chemical Sciences, BES [DE-FG-04ER-15520]
- NSF-MRI [DSI0821700]
- Direct For Biological Sciences
- Div Of Biological Infrastructure [0821700] Funding Source: National Science Foundation
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Here, we report ion-helium collision cross-sections (CCS) for a number of peptide, small protein, and peptide/protein ionic complexes. The CCS values reported here are compared to previously reported results [1,2]. We also compare values for low charge state species, i.e., [M+H](+) and [M+2H](2+), formed by MALDI with values for high charge state species formed by ESI, and the measured CCSs are compared with predicted CCS for solid-state and solution phase structures and calculated structures obtained by using a protein-protein structure algorithm generator, based on a combined Biomolecular complex Generation with Global Evaluation and Ranking [3] and Multi Dimensional Scaling [4]. Published by Elsevier B.V.
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