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Key Documents

E5906

Sigma-Aldrich

Anti-eIF4E antibody produced in rabbit

~1 mg/mL, affinity isolated antibody, buffered aqueous solution

Synonym(s):

Anti-CBP, Anti-Eukaryotic intiation factor 4E, Anti-MGC111573, Anti-eIF4E1, Anti-eIF4EL1, Anti-eIF4F

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About This Item

MDL number:
UNSPSC Code:
12352203
NACRES:
NA.41

biological source

rabbit

Quality Level

conjugate

unconjugated

antibody form

affinity isolated antibody

antibody product type

primary antibodies

clone

polyclonal

form

buffered aqueous solution

mol wt

antigen 25 kDa

species reactivity

rat (predicted), human, mouse

concentration

~1 mg/mL

technique(s)

immunocytochemistry: 5-10 μg/mL using paraformaldehyde-fixed 3T3 cells
immunoprecipitation (IP): 2-5 μL using HeLa cell lysates
western blot: 0.5-1 μg/mL using HeLa cell lysates

UniProt accession no.

shipped in

dry ice

storage temp.

−20°C

target post-translational modification

unmodified

Gene Information

human ... EIF4E(1977)
mouse ... Eif4e(13684)
rat ... Eif4e(117045)

General description

The translational factor eukaryotic translation initiation factor 4E (eIF4E), also known as mRNA cap-binding protein(CBP) or EIF4E1 is a central component of translation initiation and regulation in eukaryotic cells. eIF4E exists as both a free form and as part of a multiprotein complex termed eIF4F. Although mainly expressed in the cytoplasm, a fraction of eIF4E localizes to the nucleus, and some of the biological effects of eIF4E might be effected by a nuclear function.

Immunogen

synthetic peptide corresponding to amino acids 21-37 of human eIF4E, conjugated to KLH via a C-terminal added cysteine residue. The sequence is conserved in human, rat, and mouse.

Application

Anti-eIF4E antibody produced in rabbit has been used in immunoblotting

Biochem/physiol Actions

The translational factor eukaryotic translation initiation factor 4EeIF4E regulates the recruitment of mRNAs to the ribosome. Its interaction with mRNA cap structure enhances its binding to eIF4G and 40S ribosomal subunit. eIF4Eplays a role in diverse biological processes including embryonic development, cell cycle progression, synaptic plasticity, and cancer. eIF4E is subjected to tight regulation both at the level of its expression and by control of its activity by phosphorylation mitogen-activated protein kinase (MAPK) interacting protein kinases (by the Mnk kinase). Human P bodies contain the cap-binding protein eIF4E and the related factor eIF4E-transporter (eIF4E-T; eIF4ENIF1), suggesting novel roles for these proteins in targeting mRNAs for 5′ to 3′ degradation.

Physical form

Solution in 0.01 M phosphate buffered saline, pH 7.4, and 15 mM sodium azide.

Disclaimer

Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.

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Storage Class Code

10 - Combustible liquids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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A role for eIF4E and eIF4E-transporter in targeting mRNPs to mammalian processing bodies
Andrei M, et al.
RNA, 11(5), 717-727 (2005)
eIF4E-Dependent Translational Control: A Central Mechanism for Regulation of Pain Plasticity
Uttam S, et al.
Frontiers in Genetics, 9 (2018)
The role of the eukaryotic translation Initiation Factor 4E (eIF4E) in neuropsychiatric disorders
Amorim I, et al.
Frontiers in Genetics, 9, 561-561 (2018)
Homeodomain proteins and eukaryotic translation initiation factor 4E (eIF4E): an unexpected relationship
Topisirovic, I and Borden, KLB
Histology and Histopathology (2005)
Toward the mechanism of eIF4F-mediated ribosomal attachment to mammalian capped mRNAs
Kumar P, et al.
Genes & Development, 30(13), 1573-1588 (2016)

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