01
Dec
After 8 h of incubation, LAESI mass spectra were recorded for each sample. ion on amylin aggregation has been recently discovered, but details of the interaction remain unknown. Obtaining other more physiologically tolerated approaches requires large scale screening of potential inhibitors. Here, we demonstrate that LAESI-IMS-MS can reveal the binding stoichiometry, copper oxidation state, and the dissociation constant of human amylinCcopper(II) complex. The conformations of hIAPP in the presence of copper(II) ions were also analyzed by IMS, and preferential association between the -hairpin amylin monomer and the metal ion was found. The copper(II) ion exhibited strong association with the CHSSNNC…