Foxp3 Polyclonal Antibody, Rockland™

Description

• Store vial at -20°C prior to opening
• Aliquot contents and freeze at -20°C or below for extended storage
• Avoid cycles of freezing and thawing
• Centrifuge product if not completely clear after standing at room temperature
• This product is stable for several weeks at 4°C as an undiluted liquid
• Dilute only prior to immediate use
• This affinity purified antibody is directed against mouse Foxp3
• A BLAST analysis was used to suggest cross-reactivity with the antigen based on 100% homology with the immunizing sequence to mouse, human, and Macaca fascicularis
• FOXP3 (Forkhead box protein 3) is a member of the forkhead/winged-helix family of transcriptional regulators, highly conserved across mammals, and essential for normal immune homeostasis
• FOXP3 is 381 amino acids long, stably and constitutively expressed at a high level in CD25 + CD4 positive regulatory T cells, a low level in CD4-positive/CD25-negative cells, and is absent in CD4-negative/CD8-positive T cells
• FOXP3 may be a master regulatory gene, and a more specific marker of regulatory T cells
• Defects in the gene encoding FOXP3 protein cause the scurfy phenotype in mice
• In humans FOXP3 defects play a role in IPEX syndrome (immune dysfunction, polyendocrinopathy, enteropathy, X-linked syndrome), also known as X-linked autoimmunity-allergic dysregulation (XLAAD) syndrome
• Transcript variants of FOXP3 encoding different isoforms have been identified
• In human breast and colon cancer cells, expression of FOXP3 is regulated by p53 in response to the DNA damage.