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Protein Dynamics in Living Cells

Protein Dynamics in Living Cells

Different fluorescence-based techniques are used to study the protein dynamics in living cells. These techniques include FRAP, FRET, and PET.
Fluorescent recovery after photobleaching (FRAP) is a fluorescent-protein-based detection technique used to quantify protein movement rates within the cell. This method exposes a small portion of the cell to an intense laser beam. The laser beam causes permanent photobleaching of the fluorophore-tagged proteins in the exposed region. As the bleached...

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Related Experiment Video

Updated: Jun 24, 2026

Site Directed Spin Labeling and EPR Spectroscopic Studies of Pentameric Ligand-Gated Ion Channels

Site Directed Spin Labeling and EPR Spectroscopic Studies of Pentameric Ligand-Gated Ion Channels

Published on: July 4, 2016

Spin-dependent electrified protein interfaces for probing the CISS effect.

Ritu Gupta¹, Hariharan V Chinnasamy², Dipak Sahu³

¹Department of Chemistry, Indian Institute of Technology Kanpur, Uttar Pradesh 208016, India.

The Journal of Chemical Physics

|July 13, 2023

Summary

This summary is machine-generated.

Researchers created bio-spintronic devices using Rvb2 protein, demonstrating significant spin-selective electron transport. This breakthrough enables biomolecules in electronic components for potential biomedical applications.

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Last Updated: Jun 24, 2026

Site Directed Spin Labeling and EPR Spectroscopic Studies of Pentameric Ligand-Gated Ion Channels

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Published on: July 4, 2016

Capturing the Interaction Kinetics of an Ion Channel Protein with Small Molecules by the Bio-layer Interferometry Assay

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Area of Science:

Spintronics and molecular electronics
Biophysics and biomaterials science

Background:

Bio-spinterfaces offer novel spintronic studies but face challenges due to biomolecule sensitivity during fabrication.
Chirality-induced spin selectivity (CIS) reveals spin-dependent electron transport through chiral molecules.

Purpose of the Study:

To fabricate bio-spintronic devices using Ustilago maydis Rvb2 protein.
To investigate spin-selective electron transport through the Rvb2 protein.

Main Methods:

Fabrication of a Ni/Rvb2 protein/indium tin oxide device.
Measurement of spin-selective electron transmission under varying magnetic configurations.
Utilizing the Rvb2 protein, an ATP-dependent DNA helicase, as a biomolecular component.

Main Results:

Demonstrated spin-selective electron transmission through the Rvb2 protein.
Achieved 30% spin polarization at a low bias of +0.5 V.
Showcased the feasibility of integrating biomolecules into devices without vacuum deposition for top contacts.

Conclusions:

Biomolecules, like Rvb2 protein, can facilitate spin-selective electron transport.
The study highlights the potential of bio-spinterfaces for advancing spintronics.
Findings suggest future applications in biomedical devices utilizing protein-based spin transport.