The antibody reacts with epsilon-gamma and epsilon-delta dimers of human CD3 complex, a part of a bigger multisubunit complex of the T cell receptor for antigen (CD3/TCR) expressed on peripheral blood T lymphocytes and mature thymocytes. It reacts more strongly with blood gamma-delta T lymphocytes than with alpha-beta T lymphocytes.
The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.
1/300. ab18454-Mouse monoclonal IgG2a, is suitable for use as an isotype control with this antibody.
The CD3 complex mediates signal transduction.
Involvement in disease
Defects in CD3D are a cause of severe combined immunodeficiency autosomal recessive T-cell-negative/B-cell-positive/NK-cell-positive (T(-)/B(+)/NK(+) SCID) [MIM:608971]. A form of severe combined immunodeficiency (SCID), a genetically and clinically heterogeneous group of rare congenital disorders characterized by impairment of both humoral and cell-mediated immunity, leukopenia, and low or absent antibody levels. Patients present in infancy recurrent, persistent infections by opportunistic organisms. The common characteristic of all types of SCID is absence of T-cell-mediated cellular immunity due to a defect in T-cell development.