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STAT1 antibody

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Antibody
- Primary Antibody
  - Unconjugated Primary Antibodies

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Synonyms：	Signal transducer and activator of transcription 1-alpha/beta\|Transcription factor ISGF-3 components p91/p84\|STAT1 antibody
Catalogue No.：	FNab08295	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: STAT1 antibody
Catalogue No.: FNab08295
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: signal transducer and activator of transcription 1, 91kDa
Alternative Names: Signal transducer and activator of transcription 1-alpha/beta|Transcription factor ISGF-3 components p91/p84|STAT1 antibody
UniProt ID: P42224
Observed MW: 87 kDa

Application

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

Validated Images

PC-3 cells were subjected to SDS PAGE followed by western blot with FNab08295(STAT1 antibody) at dilution of 1:1000

Immunohistochemistry of paraffin-embedded human breast cancer tissue slide using FNab08295(STAT1 Antibody) at dilution of 1:50

Background: Signal transducer and transcription activator that mediates cellular responses to interferons(IFNs), cytokine KITLG/SCF and other cytokines and other growth factors. Following type I IFN(IFN-alpha and IFN-beta) binding to cell surface receptors, signaling via protein kinases leads to activation of Jak kinases(TYK2 and JAK1) and to tyrosine phosphorylation of STAT1 and STAT2. The phosphorylated STATs dimerize and associate with ISGF3G/IRF-9 to form a complex termed ISGF3 transcription factor, that enters the nucleus. ISGF3 binds to the IFN stimulated response element(ISRE) to activate the transcription of IFN-stimulated genes(ISG), which drive the cell in an antiviral state. In response to type II IFN(IFN-gamma), STAT1 is tyrosine-and serine-phosphorylated. It then forms a homodimer termed IFN-gamma-activated factor(GAF), migrates into the nucleus and binds to the IFN gamma activated sequence(GAS) to drive the expression of the target genes, inducing a cellular antiviral state. Becomes activated in response to KITLG/SCF and KIT signaling. May mediate cellular responses to activated FGFR1, FGFR2, FGFR3 and FGFR4.

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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