Title : Stopped-flow kinetics reveal multiple phases of thioflavin T binding to Alzheimer beta (1-40) amyloid fibrils.

Pub. Date : 1997 Jun 15

PMID : 9186492






1 Functional Relationships(s)
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1 Mixing of preformed beta (1-40) amyloid fibrils with ThT in a stopped-flow spectrophotometer, monitoring fluorescence emission at > 475 nm while exciting at 450 nm, distinguished multiple kinetic phases of roughly equivalent amplitude with tau"s in the ranges of 0.007, 0.05, 0.75, and 10-20 s. The fastest reaction appears to reflect a bimolecular dye binding event while the remaining reactions are rate-limited by protein tertiary or quaternary conformational changes. thioflavin T microtubule associated protein tau Homo sapiens