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FR4 (Folate receptor 4) Rat anti-Mouse, PE, Clone: 12A5, BD
Rat Monoclonal Antibody
Supplier: BD Biosciences 560320
Description
The monoclonal antibodies TH6 and 12A5 recognize Folate Receptor 4 (FR4), also known as the membrane folate-binding protein 3 (FBP3). FR4 is a heavily glycosylated 35kDa receptor expressed exclusively in lymphoid tissue and an isoform of the family of receptors that recognize the essential nutrient folic acid. Natural T regulatory cells constitutively express high levels of FR4. Differential expression of FR4 in combination with CD25 can distinguish four functionally distinct CD4+ T cell subpopulations; Natural Tregs, effector T cells, memory-like T cells and Nanve T cells. FR4hi CD25+ expressing CD4+ T cells also express high amounts of Foxp3, GITR and CTLA-4. Monoclonal antibody TH6 and 12A5 stained CD25+CD4+ T cells at a higher level than other CD4+ or CD8+ T cells. In addition, in vivo injection of TH6 monoclonal antibody reduced the number of CD25+CD4+ T cells and CD25-CD4+ T cells in peripheral blood. Clone 12A5 has been demonstrated to work in western blot. Clones TH6 and 12A5 do not block one another in a flow cytometric assay.
Host Species: Rat
Clone: 12A5
Isotype: IgG1 κ
Species Reactivity: Mouse
Immunogen: Mouse CD4+ CD25+ T cells
Flow Cytometry

Specifications
FR4 (Folate receptor 4) | |
Monoclonal | |
0.2mg/mL | |
Folate receptor 4, FBP, FBP3, FRdelta, FRd | |
Rat | |
Affinity Purified | |
RUO | |
Primary | |
Store undiluted at 4°C and protected from prolonged exposure to light. Do not freeze. |
Flow Cytometry | |
12A5 | |
PE | |
Aqueous buffered solution containing ≤0.09% sodium azide. | |
Mouse CD4+ CD25+ T cells | |
0.1 mg | |
Immunology | |
Mouse | |
IgG1 |
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