Animation example
Antibody receptor blockade 3D animation
A Y-shaped antibody turns into position and binds a receptor on a moving cell membrane, so the signaling molecule can no longer reach its binding site. A 10-second film made in Animiotics.
What the animation shows
Many therapeutic antibodies work by blocking. An IgG antibody has two arms, the Fab regions, that recognize a specific target, and a stem, the Fc region, that immune cells can recognize. When the arms bind a receptor at or near the spot where its natural signal would attach, that signal is shut out.
This is the idea behind several widely used medicines. Checkpoint inhibitors such as nivolumab and pembrolizumab bind PD-1 on T cells so tumor cells cannot use PD-L1 to switch them off. Cetuximab binds EGFR and blocks the growth signals that drive some cancers.
What is illustrative
The receptor blockade is conceptual, with stylized molecular models. Structures and timing are not to scale, and a real antibody can work by more than one mechanism at once.
Make your own version
Open this film as a starter and customize it, or describe a new animation. A few variations to try:
- Show nivolumab binding PD-1 on a T cell so PD-L1 on a tumor cell can no longer engage it, then the T cell attacking.
- Compare an antibody that blocks a receptor with one that marks a cell for destruction by immune cells.
- Show an antibody-drug conjugate binding its receptor, being taken into the cell and releasing its payload.
Questions
Can I build this from a real antibody structure?
Yes. Name the antibody and target in your description, or attach the PDB or mmCIF file, and the generator works from the real coordinates.
Is this useful for a biotech pitch?
Yes. Mechanism of action films like this are a common opener for investor and partner meetings. Our biotech page covers your options.
Keep reading
Describe it. Watch it move.
Start your first animation from a description, a structure or a photo.