Anti-Human IL-2 Receptor FITC
The CD25 antigen is present on normal T lymphocytes which are activated and functionally mature, monocytes, and myeloid progenitors (1,3). It is not present on resting T, B and null cells. The CD25 antigen is also present on malignant cells from patients with human T cell lymphotropic virus-associated lymphoma/leukemia. This antibody is reactive with a cell surface marker having a molecular weight of 55 to 60 kilodaltons.