Molecular modeling often involves visualizing complex interactions between atoms, molecules, and meshes. One of the common challenges is rearranging docked structures in a meaningful and efficient way to explore their dynamics or prepare structures for further analysis. The Undock animation in SAMSON offers a quick and intuitive solution to undock groups of atoms or meshes from their docked positions and reposition them based on calculated dynamics, simplifying this process significantly.
What Does the Undock Animation Do?
The Undock animation automatically configures movement by computing final positions that are away from the original docked positions. This can be particularly useful for simulating how structural components behave when bonds are weakened, or for creating clearer visualizations of interactions for presentations or research analyses.
If this animation sounds like a solution to your modeling pain point, here’s how you can start using it effortlessly.
Getting Started with Undock
Here’s a step-by-step guide to applying the Undock animation in your SAMSON projects:
- Select Nodes or Meshes: Begin by selecting at least two structural nodes or meshes in the document. The first node, treated as the static receptor, remains stationary during the animation. If the receptor consists of multiple parts, group them into a folder and select the folder as the first node.
- Apply the Undock Animation: Open the Animation panel in the Animator and double-click on the Undock animation effect. The affected nodes will automatically reposition between the animation’s two keyframes.
Fine-Tuning Your Animation
Customizing the undocking process is straightforward. After creating the animation, you can:
- Modify Keyframes: Move and adjust the keyframes to control the animation’s timing.
- Change Amplitude: The default amplitude is assigned automatically, but it can be adjusted using the Inspector for precise control over the motion.
- Customize Movement: Alter the easing curve to refine how parameters transition between frames, giving you greater control over the aesthetic and functional aspects of the animation.
Tips for Better Results
When working with the Undock animation, keep in mind:
- If no nodes are selected, SAMSON will attempt to infer the target nodes automatically.
- This tool works well for highlighting molecular dynamics where rigid parts separate or when demonstrating the effects of molecular docking disruptions.
Real-World Applications
Looking for examples? Several projects on SAMSON Connect – Documents illustrate the power of animations like Dock and Undock, including:
- 2AZ8 – Dock animation: A demonstration of docking and undocking actions.
- 5SAT – Dock animation: Another example showcasing molecular docking processes.
Clear Visual Scenarios
Visualizing molecular changes is made even easier with SAMSON. Here’s an example of how the Undock animation changes molecular arrangements:

This image demonstrates the movement of key components during the Undock animation process, giving researchers an intuitive way to study interactions dynamically.
To learn more about the Undock animation and explore further functionalities, visit the original documentation page.
SAMSON and all SAMSON Extensions are free for non-commercial use. You can get SAMSON at SAMSON Connect.
