Molecular modelers face numerous challenges when visualizing complex molecular systems. Whether showcasing a protein-ligand interaction, preparing a presentation, or simply analyzing key structural elements, much time can be wasted manually applying individual visualization settings. This post offers a solution: visual presets in SAMSON, a powerful feature to streamline molecular visualization.
What are Visual Presets?
Visual presets in SAMSON allow you to quickly apply multiple visual representations and color schemes to molecular systems. Instead of manually toggling various visualization options, preset configurations enable you to comprehensively style your molecular models in just a few clicks. For example, SAMSON provides default presets that highlight proteins and ligands, apply key visual effects, and implement specific color-coding schemes. Plus, you can easily create and save your own presets tailored to your research needs.
How to Use Visual Presets
Applying visual presets is simple. Within SAMSON, navigate to Visualization > Visual preset. From here, select an available preset that matches your current visualization goals. For those who wish to create their own preset, consider modifying an existing one to save time and ensure efficiency.
Here is an example of how the “Protein-ligand” preset looks on PDB code 1AA1:
Make Your Own Custom Presets
One of the most powerful features of SAMSON’s visual presets is the ability to design custom configurations. Once you’ve adjusted the visual settings of a molecular model (e.g., adjusted node visibility, applied color schemes, or chosen rendering effects), save the configuration as a new preset. This process ensures you can reuse the same setup for other systems with ease. For detailed guidance, check the Visual Presets section in the documentation.
Practical Example: Visualizing the Dengue Virus
To illustrate the power of presets, consider the case of PDB code 3J27, a molecule from the Dengue virus. By following a series of clicks and selections, a visually appealing and informative model was generated:
- Add a “Ribbons” (secondary structure) visual model.
- Add the “Licorice” visual model for more detailed representation.
- Use colorization based on residue indices to highlight regions.
- Apply specific rendering effects such as ambient occlusion, fog, and anti-aliasing to enhance clarity.
Thanks to visual presets and the ability to layer visual models, this visualization task becomes streamlined. For example, standard settings can include ambient occlusion, shadow tuning, and optimized lighting configurations to bring out structural features.
Want to Learn More?
Visual presets are just one among many tools for molecular visualization in SAMSON. They simplify workflows, save time, and enhance the aesthetic and clarity of molecular systems. To explore further options, including specialized rendering effects and advanced visualization customization, check the official documentation page.
Note: SAMSON and all SAMSON Extensions are free for non-commercial use. To get SAMSON, visit SAMSON Connect.