Undocking molecular components within complex structures is a critical task for molecular modelers. Whether you are analyzing receptor-ligand interactions or refining docking simulations, the Undock animation in SAMSON simplifies the process of visualizing and animating molecular undocking with clarity and precision.
Why Molecule Undocking Matters
Undocking is an integral part of molecular animations where groups of atoms or meshes are progressively moved away from their docked positions. This visualization ensures researchers can better comprehend conformational changes, validate docking accuracy, and present their findings in a more intuitive and dynamic manner.
How to Use the Undock Animation
The Undock animation effect in SAMSON helps you animate structural nodes or meshes in a seamless manner. Here’s how you can make the most of it:
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Select at least two structural nodes or meshes in your document for the animation to apply:
- The first node acts as the static receptor.
- The other selected nodes will move away from their docked positions during the animation.
If you want multiple nodes to represent the receptor, group them into a folder, then select the folder as the receptor node. In case no selection is made, SAMSON intelligently guesses the nodes for the animation.
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Activate the Undock animation by double-clicking it in the Animation panel of the Animator.
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Adjust the animation by moving keyframes within the timeline as needed. This allows you to control how and when the undocking process unfolds.
Fine-Tuning the Animation
The Undock animation is designed with flexibility. The amplitude of the movement is automatically calculated when you create the animation. If you wish to modify this:
- Use the Inspector to adjust the amplitude.
- Enhance the animation smoothness or timing by editing the easing curve, which determines how parameters transition between frames.
Visualizing the Undock Animation
To better illustrate this feature, here’s an example animation showcasing the undocking effect:

This visualization demonstrates how selected atoms or molecules smoothly undock between defined keyframes, responding to user-defined parameters.
Additional Resources
For modelers looking to combine or compare undocking animations with other effects, SAMSON supports related animations like:
- Dock (to reverse the undocking process).
- Hold atoms.
- Move atoms.
To learn more details about the Undock animation, check out the full documentation page here.
SAMSON and all SAMSON Extensions are free for non-commercial use. You can access and download them from SAMSON Connect.
