A synthetic substrate assay for the gamma-secretase of the β-A4 amyloid of alzheimer's disease
✍ Scribed by Dr. Geneviève Evin; Konrad Beyreuther; Colin L. Masters
- Book ID
- 105360086
- Publisher
- John Wiley and Sons
- Year
- 1995
- Tongue
- English
- Weight
- 600 KB
- Volume
- 1
- Category
- Article
- ISSN
- 1075-2617
No coin nor oath required. For personal study only.
✦ Synopsis
Abstract
γ‐secretase, the endoprotease which releases the C‐terminus of βA4 amyloid peptide, cleaves within the hydrophobic transmembrane domain of the amyloid precursor protein. In order to obtain a substrate for γ‐secretase, a dodecapeptide which spans the cleavage site was synthesized, labelled with 125‐iodine and conjugated to an agarose gel. A radiometric solid‐phase assay was developed using this immobilized substrate. Peptide products were separated by reverse‐phase HPLC and TLC to allow characterization of the cleavage site(s).
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