Protein Conformational Dynamics
Protein Conformational Dynamics - Related Videos
11:55
Examining the Conformational Dynamics of Membrane Proteins in situ with Site-directed Fluorescence Labeling
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Cited by 11 •
2011
We will describe a method which measures the kinetics of ion transport of membrane proteins alongside site-specific analysis of conformational changes using fluorescence on single cells. This technique is adaptable to ion channels, transporters and ion pumps and can be utilized to determine distance constraints between protein subunits.
09:33
Monitoring Conformational Dynamics of Single Unmodified Proteins using Plasmonic Nanotweezers
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Cited by 4 •
2025
Plasmonic nanotweezers use localized surface plasmon resonance in gold nanostructures to trap single nanoparticles, including proteins, within a nanometer-scale optical field. Changes in the scattered signal reveal protein presence and conformational dynamics, enabling monitoring without fluorophore modifications or surface tethering.
10:03
Proton Transfer and Protein Conformation Dynamics in Photosensitive Proteins by Time-resolved Step-scan Fourier-transform Infrared Spectroscopy
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Cited by 21 •
2014
Key steps of protein function, in particular backbone conformational changes and proton transfer reactions, often take place in the microsecond to millisecond time scale. These dynamical processes can be studied by time-resolved step-scan Fourier-transform infrared spectroscopy, in particular for proteins whose function is triggered by light.
01:20
Conformity
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2020
Conformity is the change in a person’s behavior to go along with the group, even if that person does not agree with the group. Asch’s Original Study Solomon Asch conducted several experiments in the 1950s to determine how people are affected by the thoughts and behaviors of other people. In one study, a group of participants was shown a series of printed line segments of different lengths: a, b, and c. Participants were then shown a fourth line segment: x. They were asked to identify which...
09:51
Investigating Protein Sequence-structure-dynamics Relationships with Bio3D-web
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Cited by 2 •
2017
A protocol for the online investigation of protein sequence-structure-dynamics relationships using Bio3D-web is presented.
FAQs
Thermal energy drives fluctuations, while side-chain contacts and interactions with solvent, ligands, and other biomolecules shape the accessible structural states. A local rearrangement can therefore propagate through the protein instead of remaining isolated. That coupling provides a mechanistic link between molecular motion and changes in ligand binding or catalytic activity.
Protein conformational dynamics helps explain allostery because structural changes at one region can influence behavior elsewhere in the molecule. The relevant connection is the propagation of local rearrangements through the protein, which can alter binding or catalytic activity. Studying these motions therefore links distant structural communication to functional regulation in biochemical systems.
Conformational transitions can be sampled across different timescales, and no single description necessarily captures every relevant motion. NMR spectroscopy, hydrogen-deuterium exchange, and molecular dynamics simulations provide ways to characterize these transitions. Considering their timescale range helps investigators relate observed structural fluctuations to binding, catalysis, and other protein functions.
NMR spectroscopy, hydrogen-deuterium exchange, and molecular dynamics simulations provide complementary ways to characterize protein transitions. Using these approaches allows biochemists to examine conformational behavior through measurement and computational modeling, while relating the observed transitions to functional processes. Their value lies in connecting structural fluctuations with binding, catalysis, allostery, or misfolding questions.
Rational drug design can use conformational dynamics to connect structural fluctuations with ligand binding and biochemical function. By considering how proteins sample and transition among shapes, researchers can seek compounds that account for these motions rather than treating the target as rigid. This perspective supports designing molecules with more informed relationships to protein behavior.
Protein conformational dynamics is relevant to both protein engineering and disease research. Understanding the motions that support function can guide efforts to engineer proteins with tailored functions, while examining altered structural behavior can clarify disease-associated misfolding. These applications extend the topic beyond individual binding events to questions about how protein behavior is modified, preserved, or disrupted.