Published June 18, 2025 | Version v1
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Tutorial for FREquency-SElective ANharmonic (FRESEAN) Mode Analysis

  • 1. ROR icon Arizona State University

Description

This tutorial is meant to provide hands-on experience with FREquency-SElective ANharmonic (FRESEAN) mode analysis of molecular vibratios in molecular dynamics trajectories. 

A series of Jupyter notebooks will guide through the steps of the analysis and provides comparisons to harmonic normal modes (the key argument for FRESEAN mode analysis is that it does not rely on harmonic approximations). 

- 01-tutorial_MD-gas-50K.ipynb
- 02-tutorial_MD-gas-300K.ipynb
- 03_tutorial_MD-water-300K.ipynb

Trajectory files for alanine dipeptide (in the gas phase at 50K and 300K and in solution/water at 300K) are provided and the mathematical steps are explained step by step. 

In case of any questions or problems, feel free to reach out to: `mheyden1@asu.edu`

Files

FRESEAN-tutorial-0.1.zip

Files (3.2 MB)

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Additional details

Funding

U.S. National Science Foundation
From Protein Structure Predictions to Dynamics 2154834
National Institute of General Medical Sciences
Understanding Essential Protein Dynamics through the Anharmonic Properties of Thermally Excited Vibrations R01GM148622

Software

Repository URL
https://github.com/HeydenLabASU-collab/FRESEAN-tutorial
Programming language
Jupyter Notebook, Python, C
Development Status
Active