EPS15 is involved in cell growth regulation, possibly via the regulation of mitogenic signals and control of cell proliferation.
EPS15 also participates in the internalization of ligand-inducible receptors of the receptor tyrosine kinase (RTK) type, in particular EGFR.
Potential interaction partners include AP2A2, STN2, EPN1, and CRK via its SH3-binding sites.
EPS15 is ubiquitously expressed.
Phosphorylation on Tyr-849 is involved in the internalization of EGFR.
EPS15 is not required for membrane translocation after EGF treatment or for targeting to coated pits, but essential for a subsequent step in EGFR endocytosis.
This protein is involved in a t(1;11)(p32;q23) chromosomal translocation in acute leukemias causing fusion to the trithorax (MLL or HRX) gene product which contains DNA-binding motifs resulting in a rogue activator protein.