Clone REAL1421 is an antibody fragment derived from the full CD7 antibody molecule. It displays no binding to Fc receptors. The recombinantly engineered antibody fragments are multimerized to form the REAdye_lease Complex to bind markers with high avidity.
Clone REAL1421 recognizes the human CD7 antigen, a single-pass type I membrane protein, also known as leu-9 or GP40. CD7 appears early in T cell ontogeny and is expressed by most T cells in the periphery. It is also found on NK cells, hematopoietic progenitors, monocytes, acute lymphocytic leukemia, and some acute myeloid leukemia cells. Although the ligand is yet not identified, CD7 has been recognized as a costimulatory molecule. CD7 activates phosphatidylinositol 3-kinase which is involved in CD7-mediated regulation of integrin adhesiveness. Furthermore, it has been reported that the β-galactoside-binding lectin galectin-1 binds CD7, leading to induction of apoptosis of thymocytes and T cells, with implications for certain autoimmune diseases and T cell lymphomas.
For removal of REAdye_lease fluorochromes for optional relabeling with different fluorochrome-conjugated REAdye_lease antibodies use the REAlease Support Kit (130-120-675).
