|Other Names||Epidermal growth factor receptor substrate 15, Protein Eps15, Protein AF-1p, EPS15, AF1P|
|Target/Specificity||The synthetic peptide sequence used to generate the antibody AP2159b was selected from the C-term region of human EPS15 . A 10 to 100 fold molar excess to antibody is recommended. Precise conditions should be optimized for a particular assay.|
|Format||The synthetic peptide was lyophilized with 100% acetonitrile and is supplied as a powder. Reconstitute with 0.1 ml deionized water for a final concentration of 1 mg/ml.|
|Storage||Maintain refrigerated at 2-8°C for up to 6 months. For long term storage store at -20°C.|
|Precautions||This product is for research use only. Not for use in diagnostic or therapeutic procedures.|
|Function||Involved in cell growth regulation. May be involved in the regulation of mitogenic signals and control of cell proliferation. Involved in the internalization of ligand-inducible receptors of the receptor tyrosine kinase (RTK) type, in particular EGFR. Plays a role in the assembly of clathrin-coated pits (CCPs). Acts as a clathrin adapter required for post-Golgi trafficking. Seems to be involved in CCPs maturation including invagination or budding. Involved in endocytosis of integrin beta- 1 (ITGB1) and transferrin receptor (TFR); internalization of ITGB1 as DAB2-dependent cargo but not TFR seems to require association with DAB2.|
|Cellular Location||Cytoplasm. Cell membrane; Peripheral membrane protein; Cytoplasmic side. Membrane, clathrin-coated pit Note=Recruited to the plasma membrane upon EGFR activation and localizes to coated pits. Colocalizes with UBQLN1 in ubiquitin- rich cytoplasmic aggregates that are not endocytic compartments and in cytoplasmic juxtanuclear structures called aggresomes|
|Tissue Location||Ubiquitously expressed.|
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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. Structurally, EPS15 contains 2 EF-hand calcium-binding domains, 3 EH domains, and 2 ubiquitin-interacting motif (UIM) repeats.
de Beer, T., et al., Nat. Struct. Biol. 7(11):1018-1022 (2000).Enmon, J.L., et al., Biochemistry 39(15):4309-4319 (2000).de Beer, T., et al., Science 281(5381):1357-1360 (1998).Chen, H., et al., Nature 394(6695):793-797 (1998).Matsuda, M., et al., J. Biol. Chem. 271(24):14468-14472 (1996).
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