Phospho-4E-BP1 (Ser65) (D9G1Q) Rabbit mAb #13443
- WB
- IP
Supporting Data
| REACTIVITY | H Mk |
| SENSITIVITY | Endogenous |
| MW (kDa) | 15-20 |
| Source/Isotype | Rabbit |
Application Key:
- WB-Western Blotting
- IP-Immunoprecipitation
Species Cross-Reactivity Key:
- H-Human
- Mk-Monkey
Product Information
Product Usage Information
| Application | Dilution |
|---|---|
| Western Blotting | 1:1000 |
| Simple Western™ | 1:10 - 1:50 |
| Immunoprecipitation | 1:50 |
Storage
Protocol
Specificity / Sensitivity
Phospho-4E-BP1 (Ser65) (D9G1Q) Rabbit mAb recognizes endogenous levels of 4E-BP1 protein only when phosphorylated at Ser65.
Species Reactivity:
Human, Monkey
Source / Purification
Monoclonal antibody is produced by immunizing animals with a synthetic phosphopeptide corresponding to residues surrounding Ser65 of human 4E-BP1 protein.
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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