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SFPQ antibody

Category:

Antibody
- Primary Antibody
  - Unconjugated Primary Antibodies

Research Area:

Synonyms：	Splicing factor antibody, proline- and glutamine-rich\|100 kDa DNA-pairing protein (hPOMp100)\|DNA-binding p52/p100 complex antibody, 100 kDa subunit\|Polypyrimidine tract-binding protein-associated-splicing factor (PSF antibody, PTB-associated-splicing factor)\|SFPQ\|PSF antibody
Catalogue No.：	FNab07785	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: SFPQ antibody
Catalogue No.: FNab07785
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: splicing factor proline/glutamine-rich (polypyrimidine tract binding protein associated)
Alternative Names: Splicing factor antibody, proline- and glutamine-rich|100 kDa DNA-pairing protein (hPOMp100)|DNA-binding p52/p100 complex antibody, 100 kDa subunit|Polypyrimidine tract-binding protein-associated-splicing factor (PSF antibody, PTB-associated-splicing factor)|SFPQ|PSF antibody
UniProt ID: P23246
Observed MW: 115 kDa

Application

Tested Applications: ELISA, WB, IHC
Recommended dilution: WB: 1:500 - 1:1000; IHC: 1:50 - 1:200

Validated Images

HeLa cells were subjected to SDS PAGE followed by western blot with FNab07785(SFPQ antibody) at dilution of 1:1000

Immunohistochemistry of paraffin-embedded human stomach using FNab07785(SFPQ antibody) at dilution of 1:50

Background: SFPQ, also named PSF, encodes a nuclear factor implicated in the splicing and regulation of gene expression. SFPQ probably forms a heteromer with NONO and participates in DNA pairing and DNA break repair program. Very recently SFPQ was identified as a downstream target of tau, complete nuclear depletion and cytoplasmic accumulation of SFPQ were shown in the neurons and astrocytes of brains with Alzheimer's disease (AD), more strikingly, reduced SFPQ levels may progress together with tau pathology, these observation strongly suggests the important role of SFPQ pathology in neurodegenerative diseases including AD. SFPQ protein may appears as 47 kDa, 52 kDa or 100 kDa molecules in various cell types. This antibody is a rabbit polyclonal antibody raised against the N-terminal of human SFPQ.

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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