For many molecular modelers, efficiently visualizing complex molecular systems can be a challenging task. Whether you’re analyzing protein-ligand interactions or exploring intricate molecular assemblies, finding the right visual representation and color scheme often involves a series of repetitive and time-consuming adjustments. Fortunately, SAMSON’s Visual Presets are here to simplify your visualization workflows and save you time.
What Are Visual Presets?
Visual Presets provide a fast and seamless way to transform the appearance of molecular systems. By applying one, you can instantly combine multiple visual representations and color schemes for complex systems – all in just a few clicks. These presets are designed to handle intricate molecular structures, offering clarity and insight without overwhelming the user.
SAMSON comes equipped with default visual presets, such as “Protein-ligand” configurations, and allows you to create and save your own. This capability provides tailored solutions for your specific needs while maintaining flexibility.
How to Apply Visual Presets
Applying a Visual Preset in SAMSON is intuitive. Navigate to either the Home menu or the Visualization menu, select Visual preset, and choose a desired preset from the list. If you are new to SAMSON, the included default presets are an excellent starting point for various types of molecular analyses.
Here’s an example of the “Protein-ligand” Visual Preset applied to PDB code 1AA1:

The preset automatically applies appropriate visual models, highlighting key components such as the protein backbone and ligand interactions. Without any manual configuration, you’re instantly prepared for the next step in your analysis.
Customizing and Creating New Visual Presets
If the default presets don’t meet all your needs, SAMSON allows you to customize and create your own. This gives you the flexibility to design visualization protocols that align perfectly with your specific tasks. Here’s how it works:
- Start by going to Home > Visual preset > Create… or Visualization > Visual preset > Create…
- You’ll access the Visual Preset Editor, where you can add and sequence multiple steps.
- Each step includes key options, such as choosing nodes to apply the preset to, visual actions like “Zoom on selection,” and selecting visual models and color schemes.
Here’s a glimpse of the editor:

You can either modify an existing preset or start from scratch. For instance, if you want to highlight residues involved in a binding site, you can create a step focused only on receptor and ligand nodes, apply color schemes by chain, and assign a ribbon representation to show the secondary structure. This step-by-step approach ensures you have control over the final visualization style.
If your task involves specialized visualizations not covered by predefined options, you can use the advanced Node Specification Language to create custom node selections.
Seamless Integration into Workflows
Once you’ve saved a custom Visual Preset, it is available each time you launch SAMSON. This seamless integration significantly speeds up repetitive visualization tasks and ensures consistency across projects.
Conclusion
Visual Presets in SAMSON are a game-changer for molecular modeling. They help eliminate the repetitive steps of configuring visual representations, enabling you to focus more on scientific discovery. Whether you use defaults or create customized visual workflows, these tools are indispensable for anyone looking to optimize their visualization process.
To learn more, head over to the official documentation page: https://documentation.samson-connect.net/users/latest/visual-presets/.
Note: SAMSON and all SAMSON Extensions are free for non-commercial use. You can get SAMSON here.
