BD Horizon™ PE-CF594 Mouse Anti-Human FoxP3, for 50 Tests

The 259D/C7 monoclonal antibody specifically recognizes human Forkhead box protein P3 (FoxP3) that is also known as Scurfin. FoxP3 is encoded by FOXP3 (Forkhead box P3), likewise known as IPEX (Immune Dysregulation, Polyendocrinopathy, Enteropathy, X-Linked) and JM2, that belongs to the forkhead/winged-helix family of transcriptional regulators. FoxP3 is expressed in CD4+ regulatory T cells (Treg) and represents a specific marker for these cells. Flow cytometric analyses have shown that FoxP3 is expressed by the majority of CD4+CD25+high T cells in peripheral blood while less than half of the CD4+CD25+intermediate cell population are FoxP3 positive. Approximately 5-10% of peripheral CD4+ cells are CD4+CD25+ T regulatory cells. T regulatory cells are thought to play a critical role in the regulation of T cell-mediated immunity and to protect against autoimmunity by suppressing the proliferation and cytokine production of other T cells. In support of this hypothesis, it has been found that Foxp3 is mutated in Scurfy (sf) mice that have defective T cell tolerance leading to an X-linked lymphoproliferative disease. The 259D/C7 antibody recognizes all currently-identified isoforms of human FoxP3 and is crossreactive with FoxP3 from Cynomolgus, Rhesus and Baboon primates.

This antibody is conjugated to BD Horizon™ PE-CF594, which has been developed exclusively by BD Biosciences as a better alternative to PE-Texas Red®. PE-CF594 excites and emits at similar wavelengths to PE-Texas Red® yet exhibits improved brightness and spectral characteristics. Due to PE having maximal absorption peaks at 496 nm and 564 nm, PE-CF594 can be excited by the blue (488-nm), green (532-nm) and yellow-green (561-nm) lasers and can be detected with the same filter set as PE-Texas Red® (eg 610/20-nm filter).