PathScan® Phospho-4E-BP1 (Thr37/Thr46) Sandwich ELISA Kit #7216
Important Ordering Details
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Supporting Data
REACTIVITY | H M R Mk |
Species Cross-Reactivity Key:
- H-Human
- M-Mouse
- R-Rat
- Mk-Monkey
Product Information
Product Description
*Antibodies in kit are custom formulations specific to kit.
Protocol
Specificity / Sensitivity
CST's PathScan® Phospho-4E-BP1 (Thr37/46) Sandwich ELISA Kit detects endogenous levels of phospho-4E-BP1 when phosphoryated at Thr37/46. As shown in Figure 1, using the Phospho-4E-BP1 (Thr37/46) ELISA Kit #7216, a significant induction of 4E-BP1 phosphorylation at Thr37/46 is detected in serum and amino acid starved HEK-293T cells treated with insulin for 30 minutes after replenishing the amino acids. This kit detects proteins from the indicated species, as determined through in-house testing, but may also detect homologous proteins from other species.
Species Reactivity:
Human, Mouse, Rat, Monkey
Background
Translation repressor protein 4E-BP1 (also known as PHAS-1) inhibits cap-dependent translation by binding to the translation initiation factor eIF4E. Hyperphosphorylation of 4E-BP1 disrupts this interaction and results in activation of cap-dependent translation (1). Both the PI3 kinase/Akt pathway and FRAP/mTOR kinase regulate 4E-BP1 activity (2,3). Multiple 4E-BP1 residues are phosphorylated in vivo (4). While phosphorylation by FRAP/mTOR at Thr37 and Thr46 does not prevent the binding of 4E-BP1 to eIF4E, it is thought to prime 4E-BP1 for subsequent phosphorylation at Ser65 and Thr70 (5).
Limited Uses
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