FoxP3 Mouse anti-Human, Alexa Fluor 488, Clone: 259D/C7, BD

The 259D/C7 antibody reacts with the human FoxP3 transcription factor, a member of the forkhead or winged helix family of transcription factors. The expression of FoxP3, also known as Scurfin, IPEX and JM2, has been found to be associated with CD4+ regulatory T cells and represents a specific marker for these cells. Flow-cytometric analysis has shown that FoxP3 is expressed by the majority of CD4+CD25+high T cells in peripheral blood while less than half of CD4+CD25int 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 control of T cell mediated autoimmunity by suppressing the proliferation and cytokine production of other T cells. To support this hypothesis, it has been found that FOXP3 is mutated in scurfy (sf) mice. The 259D/C7 antibody reacts with all currently identified isoforms of human FoxP3 and is cross-reactive with Cynomolgus, Rhesus and Baboon.