Are you tired of cumbersome processes when importing results from molecular dynamics simulations? Whether you’re a seasoned molecular modeler or just starting out, efficient trajectory import can greatly enhance your productivity. With GROMACS Wizard in SAMSON, importing production MD results is intuitive and hassle-free, saving you time and effort.
Why Efficient Trajectory Import Matters
The results of your molecular dynamics simulations hold valuable insights into system dynamics, structural stability, and other critical properties. However, dealing with bulky files, selecting correct import options, and configuring plots can often feel tedious. GROMACS Wizard streamlines this process, allowing you to focus more on advancing your research rather than wrestling with unnecessary intricacies.
How to Import Results in GROMACS Wizard
Once your simulation completes, GROMACS Wizard offers a user-friendly way to import results. If you’ve launched a single simulation project and there are no other projects in the local job queue, a pop-up dialog will guide you through the import options. For batch jobs or multiple simulations, you can monitor the state of your jobs from the Local jobs section.
When importing your results, you’ll encounter several dialog boxes:
- RMSD plot options: A pop-up dialog will ask for settings to create the RMSD plot. This allows you to analyze structural variations relative to an initial frame.
- Gyration radius plot options: Another dialog will let you configure a plot showing the evolution of the radius of gyration.
Beyond the plots, you can fine-tune import preferences, such as:
- Choosing whether to import the entire trajectory, a specific frame range, or just the final frame.
- Selecting Periodic Boundary Condition (PBC) treatment.
- Centering the simulation system on a specific structure (e.g., Protein).
As shown in the examples below, clicking on these options gives you precise control over what to import and how to analyze your results:



If, for any reason, you decide not to import the trajectory, you can simply cancel the process. The generated plots will still be available in your results folder for analysis. The results folder is conveniently named with the launch date, time, and a step description for effortless organization (e.g., folders for production MD end with _md).
Reliable Plot Generation
Upon finishing the import process, two key plots are automatically generated:
- Structural RMSD: Visualizing the backbone deviation relative to the equilibrated system.
- Radius of gyration: Analyzing system compactness and stability over time.
If your project involves specific workflows like Umbrella Sampling, additional plots (e.g., pull forces and coordinates) are generated to facilitate free-energy calculations.

To save a plot for future reference or presentations, simply click the Save button provided at the top of the figure. This makes exporting your visualization effortless and ensures your data is presentation-ready.
Streamline Your Analysis
Once you’ve imported and plotted results, you’re ready to dive deeper into detailed analyses, such as inspecting specific frames or running advanced workflows. With GROMACS Wizard seamlessly handling the import tasks, you can focus on deriving meaningful scientific conclusions.
Ready to optimize your molecular dynamics workflow? Head over to the full documentation to learn more.
Note: SAMSON and all SAMSON Extensions are free for non-commercial use. You can get SAMSON at https://www.samson-connect.net.
