Clathrin coats vesicles to form their spherical shape.  Clathrin coats vesicles going from organelle to organelle as well as those entering or exiting the cell. The individual clathrin protein is shown in color next to a hemaglobin for scale as well as intertwined with other clathrin molecules to form a hollow sphere.  I was unable to find any animations of clathrin molecules coming together that were not related to clathrin mediated endocytosis.  While the clathrin protien itself is not dynamic one can imagine the dynamics of many clathrin proteins weaving together to form a spherical structure.  If I were to make this structure I would cut these rings to make the three arms of clathrin then put them together.  If you made lots, you could play with the dynamics of forming and deconstructing the spherical coat that clathrin forms.

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