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Resonant Coupling Between Electromagnetic Waves and Protein Conformational Dynamics Revealed by Molecular Dynamics Simulations

Jiafei Chen, Yuanyuan Feng, Jingzhi Feng, Xinyun Zhang, Jinzhen Zhu, Qingmeng Xu

TL;DR

This study demonstrates that electromagnetic waves can modulate protein conformation through resonance with intrinsic protein dynamics, as revealed by molecular dynamics simulations. A tiered screening workflow identifies dominant intrinsic frequencies via FFT, and MD experiments show that resonant-field exposure yields greater backbone deviations than off-resonant exposure, with the strongest effects in flexible, multichain proteins. The work provides atomistic support for frequency-specific resonance as a non-thermal mechanism of EM-field effects on proteins and establishes a computational framework for wave-based modulation of protein function. These insights have implications for understanding EM exposure risks and for designing frequency-targeted approaches to influence protein dynamics. The approach combines structure prediction, MD, time-series analysis, and spectral processing to map resonant interactions across diverse protein architectures.

Abstract

The biological effects of electromagnetic fields on proteins remain controversial beyond well-established thermal mechanisms, particularly with respect to frequency-dependent responses. Here, we propose that electromagnetic waves can modulate protein conformation through resonant coupling with intrinsic protein dynamics. Molecular dynamics simulations were employed to characterize spontaneous conformational fluctuations in the absence of external fields, and a tiered screening strategy combined with fast Fourier transform analysis was used to identify dominant intrinsic frequencies associated with periodically fluctuating non-covalent atom or residue pairs. Oscillating external electric fields were subsequently applied at resonant and off-resonant frequencies to evaluate conformational responses across diverse protein systems. The results demonstrate that resonant excitation induces significantly enhanced backbone conformational deviations compared to off-resonant conditions, with the effect becoming more pronounced in structurally flexible and multichain proteins. These findings provide atomistic evidence for frequency-specific resonance between electromagnetic fields and protein conformational dynamics, offering mechanistic insight into frequency-dependent electromagnetic effects and a computational framework for electromagnetic wave-based modulation of protein function.

Resonant Coupling Between Electromagnetic Waves and Protein Conformational Dynamics Revealed by Molecular Dynamics Simulations

TL;DR

This study demonstrates that electromagnetic waves can modulate protein conformation through resonance with intrinsic protein dynamics, as revealed by molecular dynamics simulations. A tiered screening workflow identifies dominant intrinsic frequencies via FFT, and MD experiments show that resonant-field exposure yields greater backbone deviations than off-resonant exposure, with the strongest effects in flexible, multichain proteins. The work provides atomistic support for frequency-specific resonance as a non-thermal mechanism of EM-field effects on proteins and establishes a computational framework for wave-based modulation of protein function. These insights have implications for understanding EM exposure risks and for designing frequency-targeted approaches to influence protein dynamics. The approach combines structure prediction, MD, time-series analysis, and spectral processing to map resonant interactions across diverse protein architectures.

Abstract

The biological effects of electromagnetic fields on proteins remain controversial beyond well-established thermal mechanisms, particularly with respect to frequency-dependent responses. Here, we propose that electromagnetic waves can modulate protein conformation through resonant coupling with intrinsic protein dynamics. Molecular dynamics simulations were employed to characterize spontaneous conformational fluctuations in the absence of external fields, and a tiered screening strategy combined with fast Fourier transform analysis was used to identify dominant intrinsic frequencies associated with periodically fluctuating non-covalent atom or residue pairs. Oscillating external electric fields were subsequently applied at resonant and off-resonant frequencies to evaluate conformational responses across diverse protein systems. The results demonstrate that resonant excitation induces significantly enhanced backbone conformational deviations compared to off-resonant conditions, with the effect becoming more pronounced in structurally flexible and multichain proteins. These findings provide atomistic evidence for frequency-specific resonance between electromagnetic fields and protein conformational dynamics, offering mechanistic insight into frequency-dependent electromagnetic effects and a computational framework for electromagnetic wave-based modulation of protein function.
Paper Structure (11 sections, 2 equations, 5 figures)

This paper contains 11 sections, 2 equations, 5 figures.

Table of Contents

  1. Introduction
  2. Computational Methods
  3. Structural Modeling and System Setup
  4. Molecular Dynamics Simulations
  5. Time-Series Analysis and Pair Screening
  6. Spectral Processing and Frequency Extraction
  7. Conformational Response Analysis
  8. Software and Tools
  9. Result and discussion
  10. The selected proteins
  11. Conclusion

Figures (5)

  • Figure 1: The workflow for predicting protein conformational changes under resonant frequency.
  • Figure 2: The selected proteins. (a) short single-chain protein (PDB: 6SZF), (b) longer single-chain protein (PDB: 3A1F), (c) multichain protein (PDB: 1GZX), (d) Structurally flexible multichain protein (PDB: 2HAN).
  • Figure 3: Trajectories of selected potential resonant residue or atom pairs. (a) short single-chain protein (PDB: 6SZF), (b) relatively longer single-chain protein (PDB: 3A1F), (c) multichain protein (PDB: 1GZX), (d) Structurally flexible multichain protein (PDB: 2HAN)
  • Figure 4: Frequency-domain spectral profiles of potential resonant residue/atom pair amplitude dynamics.(a) Residue pairs11-21of protein Amyloid-$\beta$ 42 (PDB: 6SZF), (b) atom pairs of protein NOX2 (PDB: 3A1F), (c) protein (PDB: 1GZX), (d) protein (PDB: 2HAN).
  • Figure 5: RMSD of (a) short single-chain protein (PDB: 6SZF), (b) relatively longer single-chain protein (PDB: 3A1F), (c) multichain protein (PDB: 1GZX), (d) Structurally flexible multichain protein (PDB: 2HAN).