Abstract
Eukaryotic cells rely on endocytosis to regulate their plasma membrane proteome and lipidome. Most eukaryotic groups, except fungi and animals, have retained the evolutionary ancient TSET complex as endocytic regulator. Unlike other coatomer complexes, structural insight into TSET is lacking. Here, we reveal the molecular architecture of plant TSET (TPLATE complex/TPC) using an integrative structural approach. We identify crucial roles for specific TSET subunits in complex assembly and membrane interaction. Our data therefore generates novel insight into the differences between the hexameric TSET in Dictyostelium and the octameric TPC in plants. Structural elucidation of this ancient adaptor complex represents the missing piece in the coatomer-puzzle and vastly advances our functional as well as evolutionary insight into the process of endocytosis.
One Sentence Summary An integrative structural approach reveals crucial roles of specific subunits in the plant TPLATE/TSET complex.
Competing Interest Statement
The authors have declared no competing interest.
Footnotes
↵‡ Lead contact
This is the updated version of the paper which is now accepted at Science Advances.
