Beta-Amyloid (1-42), a major component of amyloid plaques, accumulates in neurons of Alzheimer’s disease brains. Biochemical analysis of the amyloid peptides isolated from Alzheimer’s disease brain indicates that Beta-Amyloid (1-42) is the principal species associated with senile plaque amyloids, while Beta-Amyloid (1-40) is more abundant in cerebrovascular amyloid deposit. This peptide is biotinylated at the C-terminus.
Elbaum, D. et al. Biochem. Biophys. Res. Commun. 267, 733 (2000).
H - Asp - Ala - Glu - Phe - Arg - His - Asp - Ser - Gly - Tyr - Glu - Val - His - His - Gln - Lys - Leu - Val - Phe - Phe - Ala - Glu - Asp - Val - Gly - Ser - Asn - Lys - Gly - Ala - Ile - Ile - Gly - Leu - Met - Val - Gly - Gly - Val - Val - Ile - Ala - Lys(Biotin) - NH2