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FOXP3 antibody

Category:

Antibody
- Primary Antibody
  - Unconjugated Primary Antibodies

Research Area:

Synonyms：	Forkhead box protein P3\|Scurfin\|Forkhead box protein P3 antibody, C-terminally processed\|Forkhead box protein P3 41 kDa form\|FOXP3\|IPEX antibody
Catalogue No.：	FNab03208	Reactivity：	Human, Mouse, Rat
Host：	Rabbit	Tested Application：	ELISA, WB, IHC
Clonality：	polyclonal	Isotype：	IgG

Manual MSDS

Size	Price
100µg	Inquiry

Dispatch Time: About 3 working days

SPECIFICATIONS
FIGURES
CONDITIONS
FAQS

Product Name: FOXP3 antibody
Catalogue No.: FNab03208
Size: 100μg
Form: liquid
Purification: Immunogen affinity purified
Purity: ≥95% as determined by SDS-PAGE
Clonality: polyclonal
Isotype: IgG
Storage: PBS with 0.02% sodium azide and 50% glycerol pH 7.3, -20℃ for 12 months(Avoid repeated freeze / thaw cycles.)

Immunogen

Immunogen: forkhead box P3
Alternative Names: Forkhead box protein P3|Scurfin|Forkhead box protein P3 antibody, C-terminally processed|Forkhead box protein P3 41 kDa form|FOXP3|IPEX antibody
UniProt ID: Q9BZS1
Observed MW: 47-50 kDa

Application

Tested Applications: ELISA, WB, IHC
Recommended dilution: WB: 1:500-1:2000; IHC: 1:20-1:200

Validated Images

HeLa cells were subjected to SDS PAGE followed by western blot with FNab03208(FOXP3 antibody) at dilution of 1:1000

Background: Transcriptional regulator which is crucial for the development and inhibitory function of regulatory T-cells(Treg). Plays an essential role in maintaining homeostasis of the immune system by allowing the acquisition of full suppressive function and stability of the Treg lineage, and by directly modulating the expansion and function of conventional T-cells. Can act either as a transcriptional repressor or a transcriptional activator depending on its interactions with other transcription factors, histone acetylases and deacetylases. The suppressive activity of Treg involves the coordinate activation of many genes, including CTLA4 and TNFRSF18 by FOXP3 along with repression of genes encoding cytokines such as interleukin-2(IL2) and interferon-gamma(IFNG). Inhibits cytokine production and T-cell effector function by repressing the activity of two key transcription factors, RELA and NFATC2(PubMed:15790681). Mediates transcriptional repression of IL2 via its association with histone acetylase KAT5 and histone deacetylase HDAC7(PubMed:17360565). Can activate the expression of TNFRSF18, IL2RA and CTLA4 and repress the expression of IL2 and IFNG via its association with transcription factor RUNX1(PubMed:17377532). Inhibits the differentiation of IL17 producing helper T-cells(Th17) by antagonizing RORC function, leading to down-regulation of IL17 expression, favoring Treg development(PubMed:18368049). Inhibits the transcriptional activator activity of RORA(PubMed:18354202). Can repress the expression of IL2 and IFNG via its association with transcription factor IKZF4(By similarity).

How many times can antibodies be recycled?

First, usually it's not suggested to recycle antibodies. After use, buffer system of antibodies has changed. The storage condition of recycled antibodies for different customers also varies. Thus, the performance efficiency of recycled antibodies can’t be guaranteed. Besides, FineTest ever conducted the antibody recycling assay. Assay results show recycling times of different antibodies also varies. Usually, higher antibody titer allows more repeated use. Customers can determine based on experimental requirements.

Notes: After incubation, we recycle rest antibodies to centrifuge tube and store at 4℃. High titer antibodies can be stored for a minimum of one week. Reuse about three times.

What are components of FineTest antibody buffer?

Components of FineTest antibody buffer are usually PBS with proclin300 or sodium azide, BSA, 50% glycerol. Common preservative is proclin300 or sodium azide, which is widely applied in the lab and industry.

How about the storage temperature and duration of FineTest antibodies?

Most antibodies are stored at -20℃. Directly-labeled flow cytometry antibodies should be stored at 2 - 8℃. The shelf life is one year. If after sales issues for purchased antibodies appear, return or replacement is available. Usually, antibodies can be still used after the one-year warranty. We can offer technical support services.

Is dilution required for FineTest antibodies? What’s the dilute solution?

Directly-labeled flow cytometry antibodies are ready-to-use without dilution. Other antibodies are usually concentrated. Follow the dilution ratio suggested in the manual. Dilute solution for different experiments also varies. Common antibody dilution buffers are acceptable(e.g. PBST, TBST, antibody blocking buffer).

How to retrieve antibodies for immunohistochemistry?

Common retrieval buffers: Tris-EDTA Buffer(pH 9.0); Citrate Buffer(pH 6.0)

Heat induced antibody retrieval:

Method 1: Water-bath heating: Put the beaker with retrieval buffer and slide in the boiling water bath. Keep the boiling state for 15min. Naturally cool to room temperature;

Method 2: Microwave retrieval: Put the beaker with retrieval buffer and slide in the microwave oven. Heat at high power for 5min, Switch OFF for 3min, Heat at medium power for 5min. Naturally cool to room temperature.

How to choose secondary antibodies?

(1) Secondary antibodies react with primary antibodies. Thus, secondary antibodies should be against host species of primary antibodies. E.g. If the primary antibody is derived from rabbit, the relevant secondary antibody should be against rabbit. E.g. goat anti rabbit or donkey anti rabbit.

(2) Choose secondary antibody conjugates according to the experimental type, e.g. ELISA, WB, IHC etc. Common enzyme conjugated secondary antibodies are labelled by HRP, AP etc. Fluorescin or dye labelled secondary antibodies are applied in immunofluorescence and flow cytometry(e.g. FITC, Cy3).

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