Related Experiment Video
Updated: Mar 13, 2026
08:03
Study of Protein Dynamics via Neutron Spin Echo Spectroscopy
Published on: April 13, 2022
2.6K
Visualizing the nanoscale: protein internal dynamics and neutron spin echo spectroscopy
1Department of Chemistry and Biochemistry, City College of New York, PhD Programs in Chemistry and Biochemistry, CUNY, United States.
Current Opinion in Structural Biology
|October 19, 2016
Summary
Cellular communication may occur through internal protein dynamics on the nanoscale. Neutron spin echo spectroscopy is a new technique helping explore this complex signaling mechanism.
Area of Science:
- Molecular Biology
- Biophysics
- Cell Signaling
Background:
- Proteins function as complex molecular machines within cells.
- Protein dynamics on the nanoscale offer a new perspective on cell signaling.
- The concept of internal protein communication for long-range information transfer is under-explored.
Purpose of the Study:
- To review recent advancements in experimental techniques for studying protein dynamics.
- To highlight neutron spin echo spectroscopy as a promising method for investigating nanoscale protein dynamics and cell signaling.
Main Methods:
- Review of recent progress in experimental techniques.
- Focus on neutron spin echo spectroscopy (NSES).
Main Results:
- NSES is emerging as a powerful tool for probing nanoscale dynamics.
- This technique addresses limitations of previous methods in studying protein communication.
Conclusions:
- Nanoscale protein dynamics represent a novel paradigm for cell signaling.
- Neutron spin echo spectroscopy shows significant potential for advancing research in this area.
More Related Videos
Related Concept Videos
01:08Atomic Nuclei: Nuclear Spin
5.5K
All atomic particles possess an intrinsic angular momentum, or 'spin'. Electrons, protons, and neutrons each have a spin value of ½, although protons and neutrons in nuclei may have higher half-integer spins owing to energetic factors.
Atomic nuclei have a net nuclear spin, , which can have an integer or half-integer value. In atomic nuclei, the spins of protons are paired against each other but not with neutrons, and vice versa. Consequently, an even number of protons does not contribute to...
Atomic nuclei have a net nuclear spin, , which can have an integer or half-integer value. In atomic nuclei, the spins of protons are paired against each other but not with neutrons, and vice versa. Consequently, an even number of protons does not contribute to...
5.5K
01:08NMR Spectroscopy: Spin–Spin Coupling
3.6K
The spin state of an NMR-active nucleus can have a slight effect on its immediate electronic environment. This effect propagates through the intervening bonds and affects the electronic environments of NMR-active nuclei up to three bonds away; occasionally, even farther. This phenomenon is called spin–spin coupling or J-coupling. Coupling interactions are mutual and result in small changes in the absorption frequencies of both nuclei involved. While nuclei of the same element are involved...
3.6K
01:03Atomic Nuclei: Nuclear Spin State Overview
2.2K
NMR-active nuclei have energy levels called 'spin states' that are associated with the orientations of their nuclear magnetic moments. In the absence of a magnetic field, the nuclear magnetic moments are randomly oriented, and the spin states are degenerate. When an external magnetic field is applied, the spin states have only 2 + 1 orientations available to them. A proton with = ½ has two available orientations. Similarly, for a quadrupolar nucleus with a nuclear spin value of one, the...
2.2K
01:14Atomic Nuclei: Nuclear Spin State Population Distribution
2.5K
Near absolute zero temperatures, in the presence of a magnetic field, the majority of nuclei prefer the lower energy spin-up state to the higher energy spin-down state. As temperatures increase, the energy from thermal collisions distributes the spins more equally between the two states. The Boltzmann distribution equation gives the ratio of the number of spins predicted in the spin −½ (N−) and spin +½ (N+) states.
2.5K
01:02¹H NMR: Interpreting Distorted and Overlapping Signals
1.7K
Spin systems where the difference in chemical shifts of the coupled nuclei is greater than ten times J are called first-order spin systems. These nuclei are weakly coupled, and their chemical shifts and coupling constant can generally be estimated from the well-separated signals in the spectrum.
As Δν decreases and the signals move closer, the doublets appear increasingly distorted. The intensities of the inner lines increase at the cost of those of the outer lines as the signals are...
As Δν decreases and the signals move closer, the doublets appear increasingly distorted. The intensities of the inner lines increase at the cost of those of the outer lines as the signals are...
1.7K
01:05Atomic Nuclei: Magnetic Resonance
1.3K
The number of nuclear spins aligned in the lower energy state is slightly greater than those in the higher energy state. In the presence of an external magnetic field, as the spins precess at the Larmor frequency, the excess population results in a net magnetization oriented along the z axis. When a pulse or a short burst of radio waves at the Larmor frequency is applied along the x axis, the coupling of frequencies causes resonance and flips the nuclear spins of the excess population from the...
1.3K