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4E Binding Protein 1 (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)

Cat no: 0004-21P

4E Binding Protein 1 (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)

4E-BP1 (eIF4E-binding protein) also known as PHAS, is a 10-12kD acidic protein that compete with eIF4G for binding of eiF4E to the mRNA 5 cap structure (1). Binding of the 4E-BPs to eIF4E is reversible and is dependent on the phosphorylation status of 4E-BP. Non-phosphorylated 4E- BP1 will bind strongly to eiF4E while, the phosphorylated form will no (2)t. Akt, TOR, MAP kinase, S6 kinase, and Cdc2 are known kinases capable of inactivating 4E-BP1 binding to eIF4E by phosphorylating either threonines 35, 45, 69 or serine 65. Although, not all phosphorylation events equally block the 4EBP1-eIF4E interaction.\n\nApplications:\nSuitable for use in Western Blot and Immunohistochemistry. Other applications not tested.\n\nRecommended Dilution:\nWestern Blot:1:500-1:1,000 \nImmunohistochemistry:1:50-1:100 \nOptimal dilutions to be determined by the researcher.\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

0004-21P

Size

50ug

Applications

IHC, WB

Hosts

Rabbit

Reactivities

Hum, Mouse, Rat

Form

Supplied as a liquid in PBS (without Mg2+ and Ca2+), pH 7.4, 150mM sodium chloride, 0.02% sodium azide, 50% glycerol.

P Type

Pab

Purity

Purified by immunoaffinity chromatography.

Isotype

IgG

Additional Info

Recognizes human 4E-BP1. May cross-react with 4E-BP2 and 4E-BP3. Species Cross-Reactivity: mouse, rat.

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