– Amyloid β-Protein (3-42), the precursor of Pyr peptide, serves as the foundation of the amyloid template block in Alzheimer’s disease when modified to pyroglutamate Aβ (pEAβ) (3-42). This modified form, pEAβ(3-42), hastens the aggregation of Aβ(1-42) although Aβ(1-42) markedly decelerates both the primary and secondary nucleation of pEAβ(3-42) [1].