title: A Study of Ion-Neutral Collision Cross Section Values for Low Charge States of Peptides, Proteins, and Peptide/Protein Complexes.
abstract: 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].
authors.affiliation: Department of Chemistry, Texas A&M University, College Station, Texas, 77843, USA.
authors.forename: Francisco A
authors.initials: FA
authors.lastname: Fernandez-Lima
authors.forename: Ryan C
authors.initials: RC
authors.lastname: Blase
authors.forename: David H
authors.initials: DH
authors.lastname: Russell