| Field | Specification |
|---|---|
| Mfr No | |
| Alternative Names | Cyclic AMP-dependent transcription factor ATF-4 (cAMP-dependent transcription factor ATF-4)|Activating transcription factor 4|Cyclic AMP-responsive element-binding protein 2 (CREB-2, cAMP-responsive element-binding protein 2)|Tax-responsive enhancer element-binding protein 67 (TaxREB67)|ATF4|CREB2|TXREB |
| Clonality | |
| Form | Liquid |
| Gene ID | |
| Host | |
| Immunogen | activating transcription factor 4(tax-responsive enhancer element B67) |
| Isotype | |
| Molecular Weight | |
| Product Type | |
| Purity | |
| Reactivity | |
| Storage | |
| Target | |
| UniProt # |
Product Overview
Transcriptional activator. Binds the cAMP response element(CRE)(consensus: 5'-GTGACGT[AC][AG]-3'), a sequence present in many viral and cellular promoters. Cooperates with FOXO1 in osteoblasts to regulate glucose homeostasis through suppression of beta-cell production and decrease in insulin production(By similarity). It binds to a Tax-responsive enhancer element in the long terminal repeat of HTLV-I. Regulates the induction of DDIT3/CHOP and asparagine synthetase(ASNS) in response to endoplasmic reticulum(ER) stress. In concert with DDIT3/CHOP, activates the transcription of TRIB3 and promotes ER stress-induced neuronal apoptosis by regulating the transcriptional induction of BBC3/PUMA. Activates transcription of SIRT4. Regulates the circadian expression of the core clock component PER2 and the serotonin transporter SLC6A4. Binds in a circadian time-dependent manner to the cAMP response elements(CRE) in the SLC6A4 and PER2 promoters and periodically activates the transcription of these genes. During ER stress response, activates the transcription of NLRP1, possibly in concert with other factors(PubMed:26086088).
Polyclonal Rabbit AntibodyValidated Applications
| Application | Recommended Dilution |
|---|---|
| ELISA | Refer to datasheet |
| Western Blot | Refer to datasheet |
| Immunohistochemistry | Refer to datasheet |
| Immunoprecipitation | Refer to datasheet |
| Flow Cytometry | Refer to datasheet |
Immunogen & Specificity
Immunogen: activating transcription factor 4(tax-responsive enhancer element B67)
UniProt/Swiss-Prot: P18848
Product Specifications
| Host Species | Rabbit |
|---|---|
| Clonality | Polyclonal |
| Isotype | IgG |
| Species Reactivity | Human, Mouse, Rat |
| Purification Method | Immunogen Affinity Purified |
| Purity | ≥95% as determined by SDS-PAGE |
| Molecular Weight | 50-58 kDa, 35-38 kDa |
| Storage | PBS with 0.02% sodium azide and 50% glycerol pH 7.3, -20℃ for 12 months(Avoid repeated freeze / thaw cycles.) |
Reactivity Notes
Confirmed reactivity in Human, Mouse, Rat samples; validated for ELISA, Western Blot, Immunohistochemistry, Immunoprecipitation, Flow Cytometry.
Safety & Handling
- For Research Use Only (RUO). Not intended for diagnostic procedures.
- Shipping: cold-chain shipment (typically with ice packs).
- Upon receipt: store at recommended temperature as soon as possible.
- Sales terms and conditions: Please review prior to ordering.
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ATF4 antibody
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.
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.
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.
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).
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.
BioHippo can support custom antibody formatting and service options for selected products. Contact us to discuss your project requirements.
Potential customization options include:
- Custom conjugation: fluorophore, biotin, enzyme, or nanoparticle labeling available on request for qualified antibodies.
- Bulk or scale-up quantities: volume pricing and custom lead time estimates available for larger orders.
- Alternative formulations: azide-free, carrier protein-free, or lyophilized formats available upon request for selected products.
- OEM and private-label supply: custom packaging and branding available for commercial applications.
Submit your project specifications via the product contact form or reach us at support@ebiohippo.com for a tailored quotation.
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