Distinguishing d- and l-aspartic and isoaspartic acids in amyloid β peptides with ultrahigh resolution ion mobility spectrometry

Journal Article
Chemical Communications, vol. 53, iss. 56, pp. 7913-7916, 2017
Xueyun Zheng, Liulin Deng, Erin S. Baker, Yehia M. Ibrahim, Vladislav A. Petyuk, Richard D. Smith

Ion mobility spectrometry (IMS) was utilized to separate Aβ peptide variants containing isomeric asparic and isoaspartic acid residues with either a l- or d-form. The abundance of each variant is of great interest in Alzheimer's disease studies and also to evaluate how often these modifications are occurring in other environmental and biological samples.

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