Key features and details
- Rabbit polyclonal to eIF4E (phospho S209)
- Suitable for: WB
- Reacts with: Human
- Isotype: IgG
产品名称Anti-eIF4E (phospho S209)抗体
参阅全部 eIF4E 一抗
描述兔多克隆抗体to eIF4E (phospho S209)
特异性This phosphorylation site specific antibody is selective for eIF-4E containing a phosphate on serine 209.
经测试应用适用于: WBmore details
预测可用于: Mouse, Rat, Rabbit, a wide range of other species
Synthetic peptide (Human) derived from the region of eIF-4E that contains serine 209, based on the Homo sapiens sequence. This region is identical among many species including rat, mouse and rabbit.
- HeLa cell lysate
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存放说明Shipped at 4°C. Upon delivery aliquot and store at -20°C or -80°C. Avoid repeated freeze / thaw cycles.
Preservative: 0.05% Sodium azide
Constituents: PBS, 50% Glycerol (glycerin, glycerine), 1% BSA
Concentration information loading...
纯度Immunogen affinity purified
纯化说明Purified from rabbit serum by sequential epitope-specific chromatography. The antibody has been negatively preadsorbed using a non-phosphopeptide corresponding to the site of phosphorylation to remove antibody that is reactive with non-phosphorylated eIF-4E. The final product is generated by affinity chromatography using an eIF-4E-derived peptide that is phosphorylated at serine 209.
Our Abpromise guarantee covers the use of ab4774 in the following tested applications.
The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.
|WB||1/1000. Detects a band of approximately 25 kDa (predicted molecular weight: 25 kDa).|
功能Its translation stimulation activity is repressed by binding to the complex CYFIP1-FMR1 (By similarity). Recognizes and binds the 7-methylguanosine-containing mRNA cap during an early step in the initiation of protein synthesis and facilitates ribosome binding by inducing the unwinding of the mRNAs secondary structures. Component of the CYFIP1-EIF4E-FMR1 complex which binds to the mRNA cap and mediates translational repression. In the CYFIP1-EIF4E-FMR1 complex this subunit mediates the binding to the mRNA cap.
序列相似性Belongs to the eukaryotic initiation factor 4E family.
翻译后修饰Phosphorylation increases the ability of the protein to bind to mRNA caps and to form the eIF4F complex.
- Information by UniProt
- AUTS19 antibody
- CBP antibody
- eIF 4E antibody
HeLa cell lysates (A) and HeLa cell lysates treated with alkaline phosphatase (B) were resolved by SDS-PAGE on a 4-20% Tris-glycine gel. The proteins were then transferred to PVDF membrane. Membranes were incubated with 1
µg/mL ab4774. After washing, membranes were incubated with goat (ab’)2 anti-rabbit IgG alkaline phosphatase and bands were detected using the Tropix WesternStar detection method. HeLa cell lysates (A) and HeLa cell lysates treated with alkaline phosphatase (B) were resolved by SDS-PAGE on a 4-20% Tris-glycine gel. The proteins were then transferred to PVDF membrane. Membranes were incubated with 1 µg/mL ab4774. After washing, membranes were incubated with goat (ab’)2 anti-rabbit IgG alkaline phosphatase and bands were detected using the Tropix WesternStar detection method.
Extracts of HeLa cells were resolved by SDS-PAGE on a 4-20% Tris-glycine gel and transferred to PVDF. The membrane was blocked with a 5% BSA-TBST buffer for one hour at room temperature, either left untreated (1-4) or treated with lambda (?) phosphatase (5), and then incubated with the eIF4E (phospho S209) antibody for two hours at room temperature in a 3% BSA-TBST buffer, following prior incubation with: no peptide (1,5), the nonphosphopeptide corresponding to the phosphopeptide immunogen (2), a generic phosphoserine-containing peptide (3), or the phosphopeptide immunogen (4). After washing, the membrane was incubated with goat F(ab’)2 anti-rabbit IgG alkaline phosphatase and signals were detected using the Pierce SuperSignal™ method.
The data show that only the peptide corresponding to eIF4E (phospho S209) blocks the antibody signal, demonstrating the specificity of the antibody. The data also show that phosphatase stripping eliminates the signal, verifying that the antibody i
ab4774 被引用在 1 文献中.
- Kapasi P et al. L13a blocks 48S assembly: role of a general initiation factor in mRNA-specific translational control. Mol Cell 25:113-26 (2007). PubMed: 17218275