Acetylcholine hydrolytic activity of fibrillated β-amyloid (1–40) peptide

SANCHIS, IVAN; SPINELLI, ROQUE; SIANO, ALVARO

AMINO ACIDS

SPRINGER

Año: 2023

0939-4451

Alzheimer's disease is characterized by the presence of senile plaques composed of β-amyloid peptide (Aβ) aggregates with toxic efects that are still not fully understood. Recently, it was discovered that Aβ(1–42) fbrils possess catalytic activity on acetylcholine hydrolysis. Catalytic amyloids are an emerging and exciting feld of research. In this study, we examined the catalytic activity of the fbrils formed by Aβ(1–40), the most abundant Aβ variant, on acetylcholine hydrolysis. Our fndings reveal that Aβ(1–40) fbrils exhibit moderate enzymatic activity, indicating that natural peptide aggregates could serve as biocatalysts and provide new insights into the potential role of Aβ in neurological disorders