ArticleThe journal of physical chemistry. B2009
I. Conformational dynamics of biological macromolecules by polarization-modulated Fourier imaging correlation spectroscopy.
Article in The journal of physical chemistry. B, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
1 citing paper in PubMed.
- Subcellular dynamics and protein conformation fluctuations measured by Fourier imaging correlation spectroscopy.Annual review of physical chemistry · 2010Review
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4 authors.
Funding
Abstract
Experiments that optically probe the translational motions and internal conformational transitions of biological macromolecules have the potential to enable mechanistic studies of biochemical processes in living cells. This work presents a novel "phase-selective" approach to fluorescence fluctuation spectroscopy that simultaneously monitors protein conformational transitions and nanometer center-of-mass displacements. Polarization- and intensity-modulated photoexcitation is combined with phase-sensitive signal detection to monitor the collective coordinate fluctuations from a large population of fluorescent molecules (N approximately 10(6)). Test experiments are performed on DsRed, a tetrameric complex of fluorescent protein subunits. Thermally induced conformational transitions of the complex lead to fluctuations in the optical dipolar coupling between adjacent chromophore sites. Polarization-resolved equilibrium fluctuation trajectories provide the raw data necessary to determine time-correlation functions and probability distributions of coordinate displacements, which characterize conformational transitions of the DsRed complex.
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