ReviewCurrent opinion in structural biology2026
Advancements in single-molecule fluorescence spectroscopy for probing conformations, dynamics, and interactions in disordered protein regions.
Review in Current opinion in structural biology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Single-molecule fluorescence spectroscopy encompasses a range of techniques to probe dynamic conformational ensembles of intrinsically disordered regions (IDRs). By resolving subpopulation-specific properties and spanning timescales from nanoseconds to seconds, these measurements provide observables often inaccessible with ensemble measurements. Here, we contextualize key challenges and recent advances, including integrating experiments, simulations, and theory to quantify sequence-encoded effects, as well as photon statistic analyses to characterize protein dynamics. We also summarize extensions of single-molecule fluorescence approaches to decode IDR conformations, dynamics, and spatial organizations within biomolecular condensates. Together, these technical advances make single-molecule fluorescence spectroscopy increasingly accessible for studying IDR function, while the complexity of IDR biology and physics continues to drive further methodological innovation.
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