Endocytosis is accomplished through the sequential recruitment at endocytic sites of proteins that drive cargo sorting, membrane invagination and vesicle release [1]. End3p is part of the coat module protein complex Pan1, along with Pan1p, Sla1p, and Sla2p [2]. The proteins in this complex are regulated by phosphorylation events. End3p also regulates the cortical actin cytoskeleton [3,4]. The subunits of the Pan1 complex are homologous to mammalian intersectin.

1: EH domain proteins Pan1p and End3p are components of a complex that plays a dual role in organization of the cortical actin cytoskeleton and endocytosis in Saccharomyces cerevisiae. Tang HY, Munn A, Cai M; Mol Cell Biol. 1997;17:4294-4304. PMID:9234686

2: Pan1p, End3p, and S1a1p, three yeast proteins required for normal cortical actin cytoskeleton organization, associate with each other and play essential roles in cell wall morphogenesis. Tang HY, Xu J, Cai M; Mol Cell Biol 2000;20:12-25. PMID:10594004

3: End3p-mediated endocytosis is required for spore wall formation in Saccharomyces cerevisiae. Morishita M, Engebrecht J; Genetics. 2005;170:1561-1574. PMID:15944351

4: Multiple pathways regulate endocytic coat disassembly in Saccharomyces cerevisiae for optimal downstream trafficking. Toret CP, Lee L, Sekiya-Kawasaki M, Drubin DG; Traffic. 2008;9:848-859. PMID:18298676

5: Cytoskeleton. Evolution in bacteria. Erickson HP; Nature. 2001;413:30. PMID:11544510