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).
Applications:Suitable for use in Immunofluorescence and Western Blot.
Other applications not tested.
Recommended Dilution:Western Blot: 1:500-1:2000Immunofluorescence: 1:50-1:200Optimal dilutions to be determined by the researcher.
Storage and Stability:May be stored at 4°C for short-term only.
Aliquot to avoid repeated freezing and thawing.
Store at -20°C.
Aliquots are stable for 12 months after receipt.
For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap.
仕様
Size：100ul
Host：rabbit
Source Antibody：human
Grade：Affinity Purified
Purity：Purified by affinity chromatography.
Form：Supplied as a liquid in PBS, pH 7.3, 0.02% sodium azide, 50% glycerol.
Specificity：Recognizes EIF4B. Species Crossreactivity: human, mouse, rat
Isotype：IgG
Calc Applications Abbrev：IF WB
Calc Crossreactivity：Hu Mo Rt
Immunogen：Recombinant protein corresponding to human EIF4B.
