THIOFLAVINE T
Thioflavin T The dye is widely used to visualize and quantify the presence of misfolded protein aggregates called amyloid, both in vitro and in vivo (e.g., plaques composed of amyloid beta found in the brains of Alzheimer's disease patients). Chemical formula: C17H19ClN2S ECHA InfoCard: 100.017.482
Read full description →Formation of amyloid fibrils underlies a wide range of human disorders, including Alzheimer's and prion diseases. The amyloid fibrils can be readily detected thanks to thioflavin T (ThT), a small molecule that gives strong fluorescence upon binding to amyloids. Using the amyloid fibrils of Aβ40 and Aβ42 involved in Alzheimer's disease, and of yeast prion protein Ure2, here we study three aspects of ThT binding to amyloids: quantification of amyloid fibrils using ThT, the optimal ThT concentration for monitoring amyloid formation and the effect of ThT on aggregation kinetics.
Thioflavin T (ThT) is a fluorescence dye that has first been used for staining amyloid fibrils in histological samples by Vassar and Culling in 1959 (Vassar and Culling, 1959), its application for detecting and quantifying amyloid fibrils in vitro has first been described by Naiki et al.
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