Fluorescent Ratiometric MFC Probe Sensitive to Early Stages of α-Synuclein Aggregation

摘要

We introduce a sensor molecule, AS140-MFC, consisting of a covalent adduct of an Ala-to-Cys mutant of α-synuclein with the 3-hydroxychromone dual emission dye MFC. We show that the AS140-MFC construct is a multiparametric fluorescent probe suitable for the continuous monitoring of protein aggregation and is sensitive to the early and intermediate stages of α-synuclein aggregation, a process associated with Parkinson’s disease.