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PDP - Template Name: Polyclonal Antibody
PDP - Template ID: *******59c6464

Phospho-eIF4B (Ser406) Antibody #5399

Filter:
  • WB
  • IP
  • IF
Western Blotting Image 1: Phospho-eIF4B (Ser406) Antibody
Western blot analysis of extracts from NIH/3T3 cells, untreated or λ phosphatase treated, using Phospho-eIF4B (Ser406) Antibody (upper) or eIF4B Antibody #3592 (lower).

To Purchase # 5399

Cat. # Size Qty. Price
5399S 100 µl
$357

Supporting Data

REACTIVITY H M
SENSITIVITY Endogenous
MW (kDa) 80
SOURCE Rabbit
Application Key:
  • WB-Western Blotting 
  • IP-Immunoprecipitation 
  • IF-Immunofluorescence 
Species Cross-Reactivity Key:
  • H-Human 
  • M-Mouse 
  • Related Products

Product Information

Product Usage Information

Application Dilution
Western Blotting 1:1000
Immunoprecipitation 1:50
Immunofluorescence (Immunocytochemistry) 1:50

Storage

Supplied in 10 mM sodium HEPES (pH 7.5), 150 mM NaCl, 100 µg/ml BSA and 50% glycerol. Store at –20°C. Do not aliquot the antibody.

Protocol

Specificity / Sensitivity

Phospho-eIF4B (Ser406) Antibody detects endogenous levels of eIF4B protein only when phosphorylated at Ser406.

Species Reactivity:

Human, Mouse

The antigen sequence used to produce this antibody shares 100% sequence homology with the species listed here, but reactivity has not been tested or confirmed to work by CST. Use of this product with these species is not covered under our Product Performance Guarantee.

Species predicted to react based on 100% sequence homology:

Rat

Source / Purification

Polyclonal antibodies are produced by immunizing animals with a synthetic peptide corresponding to residues surrounding Ser406 of human eIF4B protein. Antibodies are purified by protein A and peptide affinity chromatography.

Background

Eukaryotic initiation factor 4B (eIF4B) is thought to assist the eIF4F complex in translation initiation. In plants, eIF4B is known to interact with the poly-(A) binding protein, increasing its poly-(A) binding activity (1). Heat shock and serum starvation cause dephosphorylation of eIF4B at multiple sites with kinetics similar to those of the corresponding inhibition of translation, while phosphorylation of eIF4B following insulin treatment correlates well with an observed increase in translation (2-5). Multiple kinases, including p70 S6 kinase, can phosphorylate eIF4B in vitro, and at least one serum-inducible eIF4B phosphorylation site is sensitive to rapamycin and LY294002 (6). Recently, Ser406 was identified as a novel phosphorylation site regulated by mitogens (7), and the phosphorylation of this site is dependent on MEK and mTOR activity (7). This phosphorylation is shown to be essential for the translational activity of eIF4B (7).

Pathways

Explore pathways related to this product.


For Research Use Only. Not For Use In Diagnostic Procedures.
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