CN
- Racemization of the aspartic acid residue of amyloid-β peptide by a radical reaction.
Racemization of the aspartic acid residue of amyloid-β peptide by a radical reaction.
Bioscience, biotechnology, and biochemistry (2013-02-09)
Koharu Tambo, Tomomi Yamaguchi, Keiko Kobayashi, Eri Terauchi, Ikuyo Ichi, Shosuke Kojo
PMID23391937
ABSTRACT
Human amyloid-β peptide 1-42 (Aβ) was subjected to a radical reaction by using ascorbic acid and CuCl(2). The percentage of D-aspartic acid (D-Asp) after 24 h had increased to 6.69 ± 0.09%, this being comparable with the reported D-Asp concentration of purified core amyloids in Alzheimer's disease patients. This racemization was significantly inhibited by radical scavengers. L-Alanine was also racemized during the same reaction.
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2-Mercaptoethanol, for molecular biology, suitable for electrophoresis, suitable for cell culture, BioReagent, 99% (GC/titration)