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Folding kinetics of the human prion protein probed by temperature jump (CAT#: STEM-AC-0076-WXH)

Introduction

To date, 25 human diseases have been described that are characterized by the deposition of denatured proteins within animal tissues. However, among these, only the prion diseases produce self-propagating infectious material. The common theme of prion diseases, as exemplified by bovine spongiform encephalopathy in cattle and Creutzfeldt–Jakob Disease, Gerstmann-Stra¨ussler-Scheinker Syndrome, and fatal familial insomnia in humans, is their association with a slow buildup of a misfolded protein (PrPSc) in the brain. This deposition is accompanied by a loss of neuronal cells and the characteristic spongiform change. The result of this neurodegenerative process is a debilitating, dementing, and invariably fatal disease.




Principle

The temperature jump method is a technique used in chemical kinetics for the measurement of very rapid reaction rates.
The T-Jump technique provides a means to follow fast reactions with half-lives of just a few microseconds. The reaction volume is prepared so that it is in equilibrium and then rapidly perturbed by a rapid change in temperature. There is a new equilibrium constant at the higher temperature, but the initial concentrations are balanced for the lower temperature. The system therefore relaxes and the reaction proceeds until the concentrations have reached their new equilibrium values.

Applications

Used in chemical kinetics for the measurement of very rapid reaction rates

Materials

Temperature Jump System

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