RT Journal Article SR Electronic T1 eps15 and eps15R Are Essential Components of the Endocytic Pathway JF Cancer Research JO Cancer Res FD American Association for Cancer Research SP 5498 OP 5504 VO 57 IS 24 A1 Carbone, Roberta A1 Fré, Silvia A1 Iannolo, Gioacchin A1 Belleudi, Francesca A1 Mancini, Patrizia A1 Pelicci, Pier Giuseppe A1 Torrisi, Maria Rosaria A1 Di Fiore, Pier Paolo YR 1997 UL http://cancerres.aacrjournals.org/content/57/24/5498.abstract AB eps15 and eps15R are substrates of the epidermal growth factor (EGF) receptor kinase that are characterized by the presence of a protein:protein interaction domain, the EH domain, and by their ability to bind to the clathrin adaptor protein complex adaptor protein 2. Indirect evidence suggests that eps15 and eps15R are involved in endocytosis. Here we show that microinjection of antibodies against eps15 and eps15R inhibits internalization of EGF and transferrin. In addition, fragments of eps15 (encompassing its EH domains or the COOH-terminal region that binds to adaptor protein 2) inhibit EGF internalization or endocytosis of Sindbis virus. These results demonstrate that eps15 and eps15R are essential components of the endocytic machinery. ©1997 American Association for Cancer Research.