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Terahertz wave induces the structural and functional changes in voltage-gated calcium channel Cav1.1: A molecular dynamics study

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Jin X, Wang H, Zhao X, Liu C · 2025

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Cav1.1 calcium channels demonstrate high frequency specificity in their response to terahertz electromagnetic fields, suggesting that THz resonance with specific biomolecular components is critical for understanding THz effects on ion channel function.

Plain English Summary

Summary written for general audiences

This molecular dynamics simulation study examined how terahertz (THz) waves affect the structure and function of voltage-gated calcium channel Cav1.1 in an in vitro cell membrane model. The researchers found that THz waves at specific frequencies (13.4, 48.7, and 53.2 THz) induced resonance with biomolecules, causing measurable changes in the ion channel's pore radius, secondary structure, and calcium ion permeation properties.

Why This Matters

This computational study uses molecular dynamics simulations to model THz-biomolecule interactions at the atomic level, which is a standard approach for investigating mechanism-of-action questions in biophysics. The focus on frequency-specific resonance effects represents an emerging research area examining whether non-ionizing electromagnetic fields at THz frequencies can selectively modulate ion channel behavior.

Exposure Information

A logarithmic frequency spectrum from 10 Hz to 100 GHz showing where this study's THz range exposure sits relative to common EMF sources.Where This Frequency Sits on the EMF SpectrumELFVLFLF / MFHF / VHFUHFSHFmm10 Hz100 GHzThis study: THz rangePower lines50/60 HzCell phones~1 GHzWiFi2.4 GHz5G mm28 GHzLogarithmic scale

Specific exposure levels were not quantified in this study.

Cite This Study
Jin X, Wang H, Zhao X, Liu C (2025). Terahertz wave induces the structural and functional changes in voltage-gated calcium channel Cav1.1: A molecular dynamics study.
Show BibTeX
@article{terahertz_wave_induces_the_structural_and_functional_changes_in_voltage_gated_calcium_channel_cav11_a_molecular_dynamics_study_ce3284,
  author = {Jin X and Wang H and Zhao X and Liu C},
  title = {Terahertz wave induces the structural and functional changes in voltage-gated calcium channel Cav1.1: A molecular dynamics study},
  year = {2025},
  doi = {10.1038/s41586-025-08961-9},
  
}
DOI: 10.1038/s41586-025-08961-9PubMed: 40277085

Quick Questions About This Study

Yes, this molecular dynamics study found that terahertz radiation causes both structural and functional changes in voltage-gated calcium channels (Cav1.1), which are critical for cellular processes like nerve signaling and muscle contraction.
Voltage-gated calcium channels are cellular proteins that control calcium flow into cells. Cav1.1 specifically regulates muscle contraction and is essential for proper cellular communication, hormone release, and many other vital biological processes.
Researchers used molecular dynamics computer modeling to simulate how terahertz waves interact with calcium channel proteins. This computational approach allows scientists to study molecular-level effects that would be difficult to observe experimentally.
Terahertz radiation is found in airport security scanners, some medical imaging devices, and emerging high-speed wireless communication technologies. While less common than microwave frequencies, exposure sources are increasing as the technology develops.
Calcium channels control fundamental cellular processes including heartbeat regulation, nerve transmission, and hormone secretion. Disrupting these channels could potentially affect multiple body systems that depend on proper calcium signaling for normal function.