part of clathrin coat assembly clathrin-dependent endocytosis clathrin coat assembly involved in endocytosis GO:0099049 The process that results in the assembly of clathrin triskelia into a clathrin cage during endocytosis. Clathrin is recruited to the plasma membrane via interaction with scaffolding proteins that bridge between clathtin and cell surface receptors. Clathrin coat formation is concomittant with coated pit formation leading to endocytic vesicle formation. biological_process