| Literature DB >> 17074502 |
Maolian Chen1, Kelsey D Cook, Indu Kheterpal, Ronald Wetzel.
Abstract
An on-line proteolysis system utilizing a triaxial electrospray probe was developed to aid localization of the hydrogen-bonding interaction sites in hydrogen/deuterium exchange-mass spectrometry (HDX-MS) studies of Abeta (1-40) fibrils. The probe allows delayed introduction of the organic solvent component needed for stable electrospray, thus enhancing hydrolysis performance relative to that of a coaxial probe. Effective on-line digestion was accomplished in approximately 12 s. The probe should be of general utility for HDX-MS studies of amyloid fibrils and other protein aggregates.Entities:
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Year: 2006 PMID: 17074502 DOI: 10.1016/j.jasms.2006.09.011
Source DB: PubMed Journal: J Am Soc Mass Spectrom ISSN: 1044-0305 Impact factor: 3.109