Nonspecificity of Binding of γ-Secretase Modulators to the Amyloid Precursor Protein
Biochemistry2009Vol. 48(50), pp. 11837–11839
Citations Over TimeTop 10% of 2009 papers
Andrew J. Beel, Paul J. Barrett, Paul D. Schnier, Stephen A. Hitchcock, Dhanashri Bagal, Charles R. Sanders, John B. Jordan
Abstract
Evidence that certain gamma-secretase modulators (GSMs) target the 99-residue C-terminal domain (C99) of the amyloid precursor protein, a substrate of gamma-secretase, but not the protease complex itself has been presented [Kukar, T. L., et al. (2008) Nature 453, 925-929]. Here, NMR results demonstrate a lack of specific binding of these GSMs to monodisperse C99 in LMPG micelles. In addition, results indicate that C99 was likely to have been aggregated in some of the key experiments of the previous work and that binding of GSMs to these C99 aggregates is also of a nonspecific nature.
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