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AB111421

Anti-eIF4EBP1 (phospho T70) antibody

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(1 Publication)

Rabbit Polyclonal eIF4EBP1 phospho T70 antibody. Suitable for IHC-P and reacts with Human samples. Cited in 1 publication. Immunogen corresponding to Synthetic Peptide within Human EIF4EBP1 phospho T70.

View Alternative Names

Eukaryotic translation initiation factor 4E-binding protein 1, 4E-BP1, eIF4E-binding protein 1, Phosphorylated heat- and acid-stable protein regulated by insulin 1, PHAS-I, EIF4EBP1

1 Images
Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-eIF4EBP1 (phospho T70) antibody (AB111421)
  • IHC-P

Unknown

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-eIF4EBP1 (phospho T70) antibody (AB111421)

Immunohistochemistry analysis of paraffin-embedded human colon carcinoma, using eIF4EBP1 (Phospho-Thr70) Antibody (ab111421). The picture on the right is treated with the synthesized phospho peptide.

Key facts

Host species

Rabbit

Clonality

Polyclonal

Isotype

IgG

Carrier free

No

Reacts with

Human

Applications

IHC-P

applications

Immunogen

Synthetic Peptide within Human EIF4EBP1 phospho T70. The exact immunogen used to generate this antibody is proprietary information.

Q13541

Reactivity data

{ "title": "Reactivity Data", "filters": { "stats": ["", "Species", "Dilution Info", "Notes"], "tabs": { "all-applications": {"fullname" : "All Applications", "shortname": "All Applications"}, "IHCP" : {"fullname" : "Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections)", "shortname":"IHC-P"} }, "product-promise": { "all": "all", "testedAndGuaranteed": "tested", "guaranteed": "expected", "predicted": "predicted", "notRecommended": "not-recommended" } }, "values": { "Human": { "IHCP-species-checked": "testedAndGuaranteed", "IHCP-species-dilution-info": "1/50 - 1/100", "IHCP-species-notes": "<p></p> Perform heat-mediated antigen retrieval with citrate buffer pH 6 before commencing with IHC staining protocol." } } }

Properties and storage information

Form
Liquid
Purification technique
Affinity purification Immunogen
Purification notes
Affinity-purified from rabbit antiserum by affinity-chromatography using epitope-specific phosphopeptide. The antibody against non-phosphopeptide was removed by chromatography using non-phosphopeptide corresponding to the phosphorylation
Storage buffer
pH: 7.4 Preservative: 0.02% Sodium azide Constituents: PBS, 50% Glycerol (glycerin, glycerine), 0.88% Sodium chloride
Shipped at conditions
Blue Ice
Appropriate short-term storage duration
Up to 6 months
Appropriate short-term storage conditions
+4°C
Appropriate long-term storage conditions
-20°C

Supplementary information

This supplementary information is collated from multiple sources and compiled automatically.

EIF4EBP1 also known as 4EBP1 or p4EBP1 is an important protein that acts as a translational repressor by binding to eIF4E therefore inhibiting cap-dependent translation. The molecular weight of 4EBP1 is approximately 12 kDa. This protein is ubiquitously expressed in various tissues indicating its widespread involvement in cellular functions. eIF4EBP1 can be detected and quantified using techniques like the eIF4EBP1 ELISA making it a common target in research for its role in translation regulation.
Biological function summary

EIF4EBP1 plays an important role in regulating cell growth and proliferation by modulating protein synthesis. It is a part of the eIF4F complex which is responsible for the initiation of mRNA translation. When hypophosphorylated eIF4EBP1 binds tightly to eIF4E and prevents the assembly of the active eIF4F complex leading to reduced translation initiation of mRNAs involved in growth and survival. This regulation is important in conditions where cells need to adapt to metabolic stress or external signals.

Pathways

The mammalian target of rapamycin (mTOR) pathway regulates eIF4EBP1 through phosphorylation. In response to growth signals mTOR phosphorylates eIF4EBP1 causing the release of eIF4E and allowing mRNA translation to proceed. This interaction links eIF4EBP1 to the PI3K/AKT/mTOR signaling pathway which influences cell cycle progression and survival. Related proteins in this pathway include ribosomal protein S6 kinase (S6K1) which is also phosphorylated by mTOR to promote protein synthesis.

Deregulation of eIF4EBP1 has been implicated in cancer and neurological disorders. In cancer hyperactive mTOR signaling can lead to excessive phosphorylation of 4EBP1 decreasing its ability to inhibit eIF4E and enhancing translation of oncogenic proteins. In neurological disorders imbalanced eIF4EBP1 activity can disrupt synaptic plasticity and memory formation. Proteins such as p70S6K which are also part of the mTOR pathway share connections with eIF4EBP1 in these pathological conditions.

Product protocols

For this product, it's our understanding that no specific protocols are required. You can visit:

Target data

Repressor of translation initiation that regulates EIF4E activity by preventing its assembly into the eIF4F complex : hypophosphorylated form competes with EIF4G1/EIF4G3 and strongly binds to EIF4E, leading to repress translation. In contrast, hyperphosphorylated form dissociates from EIF4E, allowing interaction between EIF4G1/EIF4G3 and EIF4E, leading to initiation of translation. Mediates the regulation of protein translation by hormones, growth factors and other stimuli that signal through the MAP kinase and mTORC1 pathways.
See full target information EIF4EBP1 phospho T70

Publications (1)

Recent publications for all applications. Explore the full list and refine your search

Oncotarget 7:52255-52269 PubMed27391343

2016

PATZ1 induces PP4R2 to form a negative feedback loop on IKK/NF-κB signaling in lung cancer.

Applications

Unspecified application

Species

Unspecified reactive species

Ming-Yi Ho,Chi-Ming Liang,Shu-Mei Liang
View all publications

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