EIF4EBP1 (Eukaryotic Translation Initiation Factor 4E-binding Protein 1, 4E-BP1, eIF4E-binding Protein 1, Phosphorylated Heat- and Acid-stable Protein Regulated by Insulin 1, PHAS-I)

The translation of mRNA in eukaryotic cells is regulated by the presence of amino acids through multiple mechanisms. One such mechanism involves the evolutionarily conserved serine/threonine kinase TOR (Target of rapamycin, also known as mTOR), which regulates cell growth and cell cycle through its ability to integrate signals from nutrient levels and growth factors. One downstream target of TOR is the eukaryotic initiation factor 4E binding protein 1 (4E-BP1) whose phosphorylation prevents its association with eIF4E, preferentially stimulating translation of mRNAs containing long, highly structured 5'-UTRs. Rapamycin inhibits TOR resulting in reduced cell growth and reduced rates of cell cycle and cell proliferation, at least in part by inhibiting the activity of TOR towards 4E-BP1.\n\nApplications:\nSuitable for use in ELISA, Western Blot and Immunocytochemistry. Other applications not tested.\n\nRecommended Dilution:\nWestern Blot: 2.5-5ug/ml\nImmunocytochemistry: 2ug/ml\nOptimal dilutions to be determined by the researcher.\n\nPositive Control:\n3T3 Cell Lysate\n\nStorage and Stability:\nMay be stored at 4 degrees C for short-term only. Aliquot to avoid repeated freezing and thawing. Store at -20 degrees C. Aliquots are stable for at least 12 months. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap.

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SPECIFICATIONS

Catalog Number

146058

Size

100ug

Applications

ELISA, ICC, WB

Hosts

Rabbit

Reactivities

Hum, Mouse

Form

Supplied as a liquid in PBS, 0.02% sodium azide.

P Type

Pab

Purity

Purified by immunoaffinity chromatography.

Isotype

IgG

References

1. Shah OJ, Anthony JC, Kimball SR, et al. 4E-BP1 and S6K1: translational integration sites for nutritional and hormonal information in muscle. Am. J. Physiol. Endocrinol. Metab. 2000; 279:E715-29. 2. Shamji AF, Ngheim P, and Schreiber SL. Integration of growth factor and nutrient signaling: implications for cancer biology. Mol. Cell 2003; 12:271-80.

Additional Info

Recognizes human 4E-BP1. Species Crossreactivity: mouse.