(D-Asp1)-Amyloid β-Protein (1-42) is a peptide fragment of amyloid β-protein (Aβ). Amyloid β-protein is the primary component of both vascular and parenchymal amyloid deposits in Alzheimer's disease[1].
References
[1] Poduslo JF, Curran GL, Sanyal B, Selkoe DJ. Receptor-mediated transport of human amyloid beta-protein 1-40 and 1-42 at the blood-brain barrier. Neurobiol Dis. 1999 Jun;6(3):190-9. DOI:10.1006/nbdi.1999.0238