Abstract

The composition of solutes in the cell routinely fluctuates due to external stress or cell cycle progression. While many proteins may be resilient to these fluctuations, intrinsically disordered protein regions, or IDRs, can be sensitive to changes in their surrounding solution. This is due to a low content of intramolecular bonds and high surface area exposed to their surrounding environment. However, the molecular grammar that dictates this sensitivity in IDRs remains poorly understood. In this project we use Förster Resonance Energy Transfer (FRET) paired with live cell microscopy to characterize the ensemble of a library of synthetic IDR in cells under stressed conditions.

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