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Key Documents

E6656

Sigma-Aldrich

Anti-eIF4ENIF1 antibody produced in rabbit

affinity isolated antibody, buffered aqueous solution

Synonym(s):

Anti-4E-T, Anti-Clast4, Anti-Eukaryotic translation initiation factor 4E nuclear import factor 1, Anti-Eukaryotic translation initiation factor 4E transporter, Anti-eIF4E-T

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About This Item

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

biological source

rabbit

conjugate

unconjugated

antibody form

affinity isolated antibody

antibody product type

primary antibodies

clone

polyclonal

form

buffered aqueous solution

mol wt

antigen 140 kDa

species reactivity

human

technique(s)

immunoprecipitation (IP): 5-10 μL using HeLa cell lysates
western blot: 2-4 μg/mL using HeLa cell lysates

UniProt accession no.

shipped in

dry ice

storage temp.

−20°C

target post-translational modification

unmodified

Gene Information

General description

Eukaryotic translation initiation factor 4E nuclear import factor 1 (eIF4ENIF1) is mapped to human chromosome 22q12.2. It expressed in the human ovary and comprises two leucine-rich nuclear export signals and a bipartite nuclear localization signal.

Specificity

Anti-eIF4ENIF1 specifically recognizes human eIF4ENIF1.

Immunogen

synthetic peptide corresponding to amino acids 650-664 of human eIF4ENIF1, conjugated to KLH via an N-terminal added cysteine residue. This sequence is specific to human.

Application

Anti-eIF4ENIF1 antibody produced in rabbit is suitable for immunoprecipitation at a concentration of 5-10μL using HeLa cell lysates and western blotting at a concentration of 2-4μg/mL using HeLa cell lysates.
Anti-eIF4ENIF1 antibody produced in rabbit may be used in immunoblotting and immunoprecipitation.

Biochem/physiol Actions

Eukaryotic translation initiation factor 4E transporter (4E-T) is a protein encoded by the EIF4ENIF1 gene in humans. It is a nucleocytoplasmic shuttling protein that mediates the import of eIF4E into the nucleus. 4E-transporter (4E-T) is one of several proteins that binds the mRNA 5′cap-binding protein, eukaryotic initiation factor 4E (eIF4E), through a conserved binding motif. It′s interaction with eIF4E is a priming event in inducing messenger ribonucleoprotein rearrangement and transition from translation to decay. Eukaryotic initiation factor 4E plays an important role in controlling cell growth. 4E-T is essential for the assembly of processing bodies and its overexpression triggers the movement of eIF4E into the processing bodies.
eIF4ENIF1 (also known as 4E-T or 4E-transporter) colocalizes with other mRNA binding/processing proteins to processing (P)-bodies. The interaction of eIF4ENIF1 with eIF4E in the cytoplasm represses translation, which is believed to be a prerequisite for targeting of mRNAs to P-bodies. eIF4ENIF1 is likely to inhibit translation by competing with eIF4G for binding to eIF4E and preventing the formation of the eIF4F complex. Together with 4E-BPs, it participates in cell response to prolonged hypoxia, sequestering eIF4E, and affecting gene expression. A nonsense mutation in the eIF4ENIF1 gene is implicated in the Primary Ovarian Insufficiency.

Physical form

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

Storage and Stability

For continuous use, store at 2-8 °C for up to one month. For extended storage, freeze in working aliquots. Repeated freezing and thawing, or storage in “frost-free” freezers, is not recommended. If slight turbidity occurs upon prolonged storage, clarify the solution by centrifugation before use. Working dilutions should be discarded if not used within 12 hours.

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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Marianne Koritzinsky et al.
The EMBO journal, 25(5), 1114-1125 (2006-02-10)
Hypoxia has recently been shown to activate the endoplasmic reticulum kinase PERK, leading to phosphorylation of eIF2alpha and inhibition of mRNA translation initiation. Using a quantitative assay, we show that this inhibition exhibits a biphasic response mediated through two distinct
Marie Cargnello et al.
Molecular and cellular biology, 32(22), 4572-4584 (2012-09-12)
Processing bodies (PBs, or P bodies) are cytoplasmic granules involved in mRNA storage and degradation that participate in the regulation of gene expression. PBs concentrate nontranslated mRNAs and several factors involved in mRNA decay and translational repression, including the eukaryotic
Jinxue Ruan et al.
Scientific reports, 5, 14253-14253 (2015-09-19)
Transgenic pigs play an important role in producing higher quality food in agriculture and improving human health when used as animal models for various human diseases in biomedicine. Production of transgenic pigs, however, is a lengthy and inefficient process that
Maria Alexandra Andrei et al.
RNA (New York, N.Y.), 11(5), 717-727 (2005-04-21)
mRNP remodeling events required for the transition of an mRNA from active translation to degradation are currently poorly understood. We identified protein factors potentially involved in this transition, which are present in mammalian P bodies, cytoplasmic foci enriched in 5'
Hyung Chul Lee et al.
Biochemical and biophysical research communications, 369(4), 1160-1165 (2008-03-18)
Nonsense-mediated mRNA decay (NMD) is the best-characterized mRNA surveillance mechanism; this process removes faulty mRNAs harboring premature termination codons (PTCs). NMD targets newly synthesized mRNAs bound by nuclear cap-binding proteins 80/20 (CBP80/20) and exon junction complex (EJC), the former of

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