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4E-BP1 / EIF4EBP1 Antibody, Mouse MAb

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Human EIF4EBP1 Antibody Product Information
Immunogen:Recombinant Human 4E-BP1 / EIF4EBP1 Protein (Catalog#10022-H07E)
Clone ID:04
Ig Type:Mouse IgG1
Concentration:
Endotoxin:
Formulation:0.2 μm filtered solution in PBS
Preparation:This antibody was produced from a hybridoma resulting from the fusion of a mouse myeloma with B cells obtained from a mouse immunized with purified, recombinant Human 4E-BP1 / EIF4EBP1 (rh 4E-BP1 / EIF4EBP1; Catalog#10022-H07E; NP_004086.1; Ser2-Ile118). The IgG fraction of the cell culture supernatant was purified by Protein A affinity chromatography.
Human EIF4EBP1 Antibody FC Application Image
4E-BP1 / EIF4EBP1 Antibody, Mouse MAb, Flow Cytometry
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Caption:
Flow cytometric analysis of Human 4EBP1 expression on HeLa cells. The cells were treated according to manufacturer’s manual (BD Pharmingen™ Cat. No. 554714), stained with purified anti-Human 4EBP1, then a FITC-conjugated second step antibody. The fluorescence histograms were derived from gated events with the forward and side light-scatter characteristics of intact cells.
Other EIF4EBP1 Antibody Products
4E-BP1/EIF4EBP1 Background

The translational suppressor eIF4E binding protein-1, 4E-BP1 functions as a key regulator in cellular growth, differentiation, apoptosis and survival. The Eif4ebp1 gene, encoding 4E-BP1, is a direct target of a transcription factor activating transcription factor-4 (ATF4), a master regulator of gene expression in stress responses. 4E-BP1 is characterized by its capacity to bind specifically to eIF4E and inhibit its interaction with eIF4G. Phosphorylation of 4E-BP1 regulates eIF4E availability, and therefore, cap-dependent translation, in cell stress. Binding of eIF4E to eIF4G is inhibited in a competitive manner by 4E-BP1. Phosphorylation of 4E-BP1 decreases the affinity of this protein for eIF4E, thus favouring the binding of eIF4G and enhancing translation. 4E-BP1 is important for beta-cell survival under endoplasmic reticulum (ER) stress. 4E-BP1 mediates the regulation of protein translation by hormones, growth factors and other stimuli that signal through the MAP kinase and mTORC1 pathways. Recently, 4E-BP1 was found to be a key factor, which converges several oncogenic signals, phosphorylates the molecules, and drives the downstream proliferative signals. Recent studies showed that high expression of phosphorylated 4E-BP-1 (p-4E-BP1) is associated with poor prognosis, tumor progression, or nodal metastasis in different human cancers.

Human 4E-BP1/EIF4EBP1 References
  • Azar R, et al. (2008) Phosphatidylinositol 3-kinase-dependent transcriptional silencing of the translational repressor 4E-BP1. Cell Mol Life Sci. 65(19): 3110-7.
  • Tominaga R, et al. (2010) The JNK pathway modulates expression and phosphorylation of 4E-BP1 in MIN6 pancreatic beta-cells under oxidative stress conditions. Cell Biochem Funct. 28(5): 387-93.
  • Ayuso MI, et al. (2010) New hierarchical phosphorylation pathway of the translational repressor eIF4E-binding protein 1 (4E-BP1) in ischemia-reperfusion stress. J Biol Chem. 285(45): 34355-63.
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    Catalog: 10022-MM04-200
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