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AB75823

Anti-eIF4B (phospho S504) antibody [EP2261Y]

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(2 Publications)

Rabbit Monoclonal eIF4B phospho S504 antibody. Suitable for WB and reacts with Human samples. Cited in 2 publications.

View Alternative Names

Eukaryotic translation initiation factor 4B, eIF-4B, EIF4B

1 Images
Western blot - Anti-eIF4B (phospho S504) antibody [EP2261Y] (AB75823)
  • WB

Unknown

Western blot - Anti-eIF4B (phospho S504) antibody [EP2261Y] (AB75823)

All lanes:

Western blot - Anti-eIF4B (phospho S504) antibody [EP2261Y] (ab75823) at 1/50000 dilution

Lane 1:

293T cell lysate, untreated at 10 µg

Lane 2:

293T cell lysate, treated with AP at 10 µg

Secondary

All lanes:

goat anti-rabbit HRP at 1/2000 dilution

Predicted band size: 69 kDa

Observed band size: 69 kDa

false

  • Carrier free

    Anti-eIF4B (phospho S504) antibody [EP2261Y] - BSA and Azide free

Key facts

Host species

Rabbit

Clonality

Monoclonal

Clone number

EP2261Y

Isotype

IgG

Carrier free

No

Reacts with

Human

Applications

WB

applications

Immunogen

The exact immunogen used to generate this antibody is proprietary information.

Reactivity data

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Product details

Patented technology
Our RabMAb® technology is a patented hybridoma-based technology for making rabbit monoclonal antibodies. For details on our patents, please refer to RabMAb® patents.

Properties and storage information

Form
Liquid
Storage buffer
pH: 7.2 - 7.4 Preservative: 0.01% Sodium azide Constituents: PBS, 40% Glycerol (glycerin, glycerine), 0.05% BSA
Shipped at conditions
Blue Ice
Appropriate short-term storage conditions
+4°C
Appropriate long-term storage conditions
-20°C
Storage information
Stable for 12 months at -20°C

Supplementary information

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

EIF4B also known as eukaryotic translation initiation factor 4B is a protein that enhances the RNA helicase activity of the eIF4A protein during the initiation of translation. It weighs approximately 80 kDa. eIF4B interacts directly with RNA stimulating the unwinding of mRNA secondary structures allowing the ribosome to access the mRNA strand for translation. It is expressed in most cell types playing an essential role in efficient protein synthesis.
Biological function summary

EIF4B supports the recruitment of ribosomal subunits to mRNA by interacting with eIF3 and the large ribosomal subunit. It forms part of the larger eIF4F complex which is important for the cap-dependent initiation of translation. By working with eIF4A and eIF4G eIF4B facilitates the scanning process of the ribosome to the start codon on mRNA leading to proper protein translation.

Pathways

EIF4B participates in the mTOR signaling pathway a central regulator of cellular growth and metabolism. It also contributes to the PI3K/AKT/mTOR pathway affecting cell proliferation and survival. Additionally eIF4B interacts with other proteins like eIF4E and eIF5 linking its function to these pathways and ensuring effective coordination of translation initiation as well as regulation under various conditions.

Aberrant eIF4B activity has connections to cancer and neurodegenerative diseases. Overexpression or dysregulation of eIF4B is often observed in various cancers due to its role in promoting protein synthesis necessary for tumor growth. It also indirectly interacts with oncogenic proteins such as mTOR highlighting its importance in cancer. In neurodegenerative disorders eIF4B’s role in protein homeostasis is disrupted contributing to disease progression alongside pathways involving proteins like eIF4A.

Product protocols

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

Target data

Required for the binding of mRNA to ribosomes. Functions in close association with EIF4-F and EIF4-A. Binds near the 5'-terminal cap of mRNA in presence of EIF-4F and ATP. Promotes the ATPase activity and the ATP-dependent RNA unwinding activity of both EIF4-A and EIF4-F.
See full target information EIF4B pS504

Publications (2)

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

Cell death & disease 12:769 PubMed34349120

2021

Casein Kinase 2 dependent phosphorylation of eIF4B regulates BACE1 expression in Alzheimer's disease.

Applications

Unspecified application

Species

Unspecified reactive species

Barbara Bettegazzi,Laura Sebastian Monasor,Serena Bellani,Franca Codazzi,Lisa Michelle Restelli,Alessio Vittorio Colombo,Nikolaus Deigendesch,Stephan Frank,Takashi Saito,Takaomi C Saido,Sven Lammich,Sabina Tahirovic,Fabio Grohovaz,Daniele Zacchetti

Scientific reports 7:10563 PubMed28874824

2017

eIF4B phosphorylation at Ser504 links synaptic activity with protein translation in physiology and pathology.

Applications

Unspecified application

Species

Unspecified reactive species

Barbara Bettegazzi,Serena Bellani,Paolo Roncon,Fabrizia Claudia Guarnieri,Alice Bertero,Franca Codazzi,Flavia Valtorta,Michele Simonato,Fabio Grohovaz,Daniele Zacchetti
View all publications

Product promise

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