Molecular modeling often requires analyzing how components move and interact spatially, whether it’s docking ligands or simulating molecular behaviors. But, what happens when you need to reverse this process—separating groups of atoms or structures? The Undock animation in the SAMSON platform provides a streamlined way to ‘undock’ molecular components, freeing them from their docked positions with minimal user input.
The Molecular Modeling Challenge: Reversing Docking
Reversing a docking process manually often involves tedious adjustments to the positions of atoms or meshes to ensure appropriate separation and spatial accuracy. This not only consumes time but also risks inaccuracies, particularly when complex molecular assemblies are involved.
With SAMSON’s Undock animation effect, this process becomes automated: groups of atoms or meshes can smoothly move from their docked states to automatically computed positions, ensuring clarity in visualization and presentations.
How to Use the Undock Animation
Here’s a quick step-by-step guide to utilizing the Undock animation in your workflow:
- Select nodes or meshes: Start by selecting at least two structural nodes or meshes in your SAMSON document. The first node acts as the static receptor, while the others will be animated. If you have multiple receptor nodes, group them into a folder and select this as the first node.
- Apply the Undock animation: In SAMSON’s Animation panel (found within the Animator), double-click on the Undock animation effect. If no selection is made, SAMSON attempts to infer the applicable nodes.
- Keyframe configuration: The selected nodes will be undocked automatically between two keyframes. Adjust these keyframes as needed within the timeline to fit your desired animation flow.
- Modify animation parameters: Adjust the amplitude of the movement via SAMSON’s Inspector panel. By modifying the Easing curve, you can control how the animation parameters change over time, adding custom interpolation effects to your animation.
Pro tip: You can seamlessly move the animation’s keyframes on your timeline to match the sequence of other animations in your project.
Key Visualization Example
Take a look at this example demonstrating the Undock animation in action:

As shown above, the animation moves the specified nodes smoothly to undocked positions, making it easier to showcase molecular dynamics and structural behaviors in presentations or academic outputs.
Why the Undock Animation Matters
For molecular modelers, visual clarity is critical. The Undock animation not only saves time in reversing bonded structures or illustrating unbinding events but also offers a cleaner presentation of molecular interactions. Whether you’re a researcher preparing a keynote, an educator explaining molecular docking concepts, or a student experimenting with modeling workflows, the automated simplicity of Undock is invaluable.
Learn more about the Undock animation on the official documentation page.
SAMSON and all SAMSON Extensions are free for non-commercial use. To get started, download SAMSON at https://www.samson-connect.net.
