Description: The 2E7 monoclonal antibody reacts with mouse CD103, the αE integrin. CD103 non-covalently associates with integrin β7 and is expressed on all intraepithelial lymphocytes, a small subset of peripheral lymphocytes, and dendritic epidermal T cells (DEC). Epithelial cell antigen E-cadherin binds to CD103 and mediates homing of lymphocytes to the intestinal epithelium.