The major structural component of coated pits constituted by a larger, ∼190 KDa protein, the clathrin heavy chain, which is complex to a smaller (∼25 KDa) subunit, the clathrin light chain. Heavy–light chain dimers can further assemble into complexes called triskelions, which represent the building blocks of the polygonal array that constitutes the organizing scaffold of a pit.

 Endocytosis

 Huntingtin Interacting Protein 1 (HIP1)