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Invitrogen
FR4 Monoclonal Antibody (eBio12A5), PE-Cyanine7, eBioscience™
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FIGURE: 1 / 1
FR4 Antibody (25-5445-82) in Flow
Staining of BALB/c splenocytes with Anti-Mouse CD4 FITC (Product # 11-0041-82) and 0.25 µg of Rat IgG1 K Isotype Control PE-Cyanine7 (Product # 25-4301-82) (left) or 0.25 µg of Anti-Mouse FR4 PE-Cyanine7 (right). Total viable cells were used for analysis.
Product Details
25-5445-82
Applications
Tested Dilution
Publications
Product Specifications
Species Reactivity
Mouse
Published species
C. elegans,
Mouse
Host/Isotype
Rat
/ IgG2b, kappa
Recommended Isotype Control
Class
Monoclonal
Type
Antibody
Clone
eBio12A5
Conjugate
Excitation/Emission Max
569/780 nm
View spectra
Form
Liquid
Concentration
0.2 mg/mL
Purification
Affinity chromatography
Storage buffer
PBS, pH 7.2
Contains
0.09% sodium azide
Storage conditions
4°C, store in dark, DO NOT FREEZE!
Shipping conditions
Ambient (domestic); Wet ice (international)
RRID
Product Specific Information
Description: The monoclonal antibody eBio12A5 recognizes FR4, also known as Folate receptor 4, FR delta and FBP3 (folate binding protein3). FR4 is a heavily glycosylated, 35 kD receptor for folic acid and the physiologic circulating form of the vitamin, N5-methyltetrahydrofolate. Natural Treg have high levels of FR4 and together with CD25 can be used to distinguish natural Treg, effector T cells, memory-like T cells and naive T cells. FR4 high CD25 high cells are natural Treg with high levels of Foxp3. FR4 high CD25 low cells are identified as central memory T cells, which upon stimulation, can proliferate and produce large amounts of IL-2. In contrast, FR4 low CD25 high cells secrete proinflammatory cytokines such as IFN gamma and IL-17 and have been characterized as effector memory T cells.
Based on co-staining studies, the epitopes recognized by eBioTH6 and eBio12A5 are different, thereby allowing functional studies with eBioTH6 to be evaluated with eBio12A5.
Applications Reported: This eBio12A5 antibody has been reported for use in flow cytometric analysis.
Applications Tested: This eBio12A5 antibody has been tested by flow cytyometric analysis of mouse splenocytes. This can be used at less than or equal to 0.5 µg per test. A test is defined as the amount (µg) of antibody that will stain a cell sample in a final volume of 100 µL. Cell number should be determined empirically but can range from 10^5 to 10^8 cells/test. It is recommended that the antibody be carefully titrated for optimal performance in the assay of interest.
Light sensitivity: This tandem dye is sensitive to photo-induced oxidation. Please protect this vial and stained samples from light.
Fixation: Samples can be stored in IC Fixation Buffer (Product # 00-8222) (100 µL of cell sample + 100 µL of IC Fixation Buffer) or 1-step Fix/Lyse Solution (Product # 00-5333) for up to 3 days in the dark at 4°C with minimal impact on brightness and FRET efficiency/compensation. Some generalizations regarding fluorophore performance after fixation can be made, but clone specific performance should be determined empirically.
Excitation: 488-561 nm; Emission: 775 nm; Laser: Blue Laser, Green Laser, Yellow-Green Laser.
Filtration: 0.2 µm post-manufacturing filtered.
Target Information
FR4 is a heavily glycosylated 35 kD receptor for folic acid and the physiologic circulating form of the vitamin, N5-methyltetrahydrofolate. Natural T regs have high levels of FR4 and together with CD25 can be used to distinguish natural Tregs, effector T cells, memory-like T cells and naive T cells. In vivo studies with eBioTH6 show a decrease in the number of CD4+CD25+ cells and an enhanced tumor response leading to the elimination of advanced stages of tumors.
For Research Use Only. Not for use in diagnostic procedures. Not for resale without express authorization.
How to use the Panel Builder
Watch the video to learn how to use the Invitrogen Flow Cytometry Panel Builder to build your next flow cytometry panel in 5 easy steps.
Bioinformatics
Protein Aliases: Folate receptor 4; folate receptor 4 (delta); Folate receptor delta; Folate-binding protein 3; FR-delta; IZUMO1 receptor protein JUNO; probable folate receptor delta; Sperm-egg fusion protein Juno
Gene Aliases: 0910001L11Rik; C86255; Folbp3; Folr4; Izumo1r; Juno
UniProt ID: (Mouse) Q9EQF4
Entrez Gene ID: (Mouse) 64931
Performance Guarantee
If an Invitrogen™ antibody doesn't perform as described on our website or datasheet,we'll replace the product at no cost to you, or provide you with a credit for a future purchase.*
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