We have examined the hydrogen exchange properties of bovine insulin under solution conditions that cause it to aggregate and eventually form amyloid fibrils. The results have been obtained at the residue-specific level using peptic digestion and mass spectrometry. A total of 19 peptides were assigned to regions of the protein and their exchange properties monitored for a period of 24 hours. The results of the peptic digestion show that residues A13 to A21 and B11 to B30 are more susceptible t...Expand abstract
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Dissecting the hydrogen exchange properties of insulin under amyloid fibril forming conditions: a site-specific investigation by mass spectrometry.
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