AB33768

Anti-eIF4E antibody [Y449]

Name: Anti-eIF4E antibody [Y449] (ab33768) | Abcam
Brand: Abcam Limited
SKU: AB33768
Price: 230 USD
Availability: InStock
Rating: 5 (8 reviews)

RabMAb
Recombinant
What is this?

(8 Reviews)

(8 Publications)

Rabbit Recombinant Monoclonal eIF4E antibody. Suitable for ICC/IF, IP, WB, Flow Cyt (Intra), IHC-P and reacts with Mouse, Rat, Human samples. Cited in 8 publications.

View Alternative Names

EIF4EL1, EIF4F, EIF4E, Eukaryotic translation initiation factor 4E, eIF-4E, eIF4E, eIF-4F 25 kDa subunit, mRNA cap-binding protein

7 Images

Flow Cytometry (Intracellular) - Anti-eIF4E antibody [Y449] (AB33768)

Flow Cyt (Intra)

Unknown

Flow Cytometry (Intracellular) - Anti-eIF4E antibody [Y449] (AB33768)

Intracellular Flow Cytometry analysis of HEK-293 (Human embryonickidney epithelial cell) cells labeling eIF4E with Purified ab33768 at 1/50 dilution (10 μg/mL) (Red). Cells were fixed with 4% Paraformaldehyde and permeabilised with 90% Methanol. A Goat anti rabbit IgG (Alexa Fluor^® 488, ab150077) secondary antibody was used at 1/2000. Isotype control - Rabbit monoclonal IgG (Black). Unlabeled control - Cell without incubation with primary antibody and secondary antibody (Blue).

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-eIF4E antibody [Y449] (AB33768)

IHC-P

Unknown

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-eIF4E antibody [Y449] (AB33768)

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) analysis of human ovarian cancer tissue labelling eIF4E with ab33768 at a dilution of 1/500. Antigen retrieval was performed ab93684, Tris/EDTA buffer, pH 9. A ready to use goat anti-rabbit IgG H&L (HRP Polymer) was used as the secondary antibody. Counter stained with Hematoxylin.

Immunocytochemistry/ Immunofluorescence - Anti-eIF4E antibody [Y449] (AB33768)

ICC/IF

Unknown

Immunocytochemistry/ Immunofluorescence - Anti-eIF4E antibody [Y449] (AB33768)

Immunocytochemistry/ Immunofluorescence analysis of RAW 264.7 (Mouse Abelson murine leukemia virus-induced tumor macrophage) cells labeling eIF4E with Purified ab33768 at 1/50 (10 µg/mL). Cells were fixed in 4% Paraformaldehyde and permeabilized with 0.1% tritonX-100. Cells were counterstained with ab195889 Anti-alpha Tubulin antibody [DM1A] - Microtubule Marker (Alexa Fluor® 594) 1/200 (2.5 µg/mL). Goat anti rabbit IgG (Alexa Fluor® 488, ab150077) was used as the secondary antibody at 1/1000 (2 µg/mL) dilution. DAPI (blue) was used as nuclear counterstain. PBS instead of the primary antibody was used as the secondary antibody only control.

IHC-P

Unknown

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-eIF4E antibody [Y449] (AB33768)

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) analysis of rat testis tissue labelling eIF4E with ab33768 at a dilution of 1/500. Antigen retrieval was performed ab93684, Tris/EDTA buffer, pH 9. A ready to use goat anti-rabbit IgG H&L (HRP Polymer) was used as the secondary antibody. Counter stained with Hematoxylin.

IHC-P

Unknown

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-eIF4E antibody [Y449] (AB33768)

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) analysis of mouse testis tissue labelling eIF4E with ab33768 at a dilution of 1/500. Antigen retrieval was performed ab93684, Tris/EDTA buffer, pH 9. A ready to use goat anti-rabbit IgG H&L (HRP Polymer) was used as the secondary antibody. Counter stained with Hematoxylin.

Unknown

Immunoprecipitation - Anti-eIF4E antibody [Y449] (AB33768)

eIF4E was immunoprecipitated from 10 μg NIH/3T3 (Mouse embryonic fibroblast) whole cell lysate with ab33768 at a 1/30 dilution. Western blot was performed from the immunoprecipitate using ab33768 at 1/1000 dilution. VeriBlot for IP Detection Reagent (HRP) (ab131366), was used for detection at 1/1000 dilution.

Lane 1 : NIH/3T3 (Mouse embryonic fibroblast) whole cell lysate 10 μg (Input).
Lane 2 : ab33768 IP in NIH/3T3 whole cell lysate.
Lane 3 : Rabbit monoclonal IgG (ab172730) instead of ab33768 in NIH/3T3 whole cell lysate.

Blocking/Dilution buffer : 5% NFDM/TBST.

All lanes:

Immunoprecipitation - Anti-eIF4E antibody [Y449] (ab33768)

Predicted band size: 25 kDa

Observed band size: 28 kDa

false

Exposure time: 3min

Lab

Western blot - Anti-eIF4E antibody [Y449] (AB33768)

Blocking and dilution buffer : 5% NFDM/TBST.

Exposure time :
Lane 1 : 20 seconds.
Lanes 2-5 : 8 seconds.

All lanes:

Western blot - Anti-eIF4E antibody [Y449] (ab33768) at 1/1000 dilution

Lane 1:

HEK-293 (Human embryonic kidney epithelial cell) whole cell lysate at 20 µg

Lane 2:

HepG2 (Human hepatocellular carcinoma epithelial cell) whole cell lysate at 20 µg

Lane 3:

NIH/3T3 (Mouse embryonic fibroblast) whole cell lysate at 20 µg

Lane 4:

RAW 264.7 (Mouse Abelson murine leukemia virus-induced tumor macrophage) whole cell lysate at 20 µg

Lane 5:

C6 (Rat glial tumor glial cell) whole cell lysate at 20 µg

Secondary

All lanes:

Western blot - Goat Anti-Rabbit IgG H&L (HRP) (<a href='/en-us/products/secondary-antibodies/goat-rabbit-igg-h-l-hrp-ab97051'>ab97051</a>) at 1/20000 dilution

Predicted band size: 25 kDa

Observed band size: 28 kDa

false

Carrier free

Anti-eIF4E antibody [Y449] - BSA and Azide free

Key facts

Host species

Rabbit

Clonality

Monoclonal

Clone number

Y449

Isotype

IgG

Carrier free

Reacts with

Mouse, Rat, Human

Applications

Flow Cyt (Intra), IHC-P, WB, ICC/IF, IP

applications

Immunogen

The exact immunogen used to generate this antibody is proprietary information.

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Reactivity data

{ "title": "Reactivity Data", "filters": { "stats": ["", "Species", "Dilution Info", "Notes"], "tabs": { "all-applications": {"fullname" : "All Applications", "shortname": "All Applications"}, "ICCIF" : {"fullname" : "Immunocytochemistry/ Immunofluorescence", "shortname":"ICC/IF"}, "IP" : {"fullname" : "Immunoprecipitation", "shortname":"IP"}, "WB" : {"fullname" : "Western blot", "shortname":"WB"}, "FlowCytIntra" : {"fullname" : "Flow Cytometry (Intracellular)", "shortname":"Flow Cyt (Intra)"}, "IHCP" : {"fullname" : "Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections)", "shortname":"IHC-P"} }, "product-promise": { "all": "all", "testedAndGuaranteed": "tested", "guaranteed": "expected", "predicted": "predicted", "notRecommended": "not-recommended" } }, "values": { "Human": { "ICCIF-species-checked": "guaranteed", "ICCIF-species-dilution-info": "", "ICCIF-species-notes": "", "IP-species-checked": "guaranteed", "IP-species-dilution-info": "", "IP-species-notes": "", "WB-species-checked": "testedAndGuaranteed", "WB-species-dilution-info": "1/1000", "WB-species-notes": "For unpurified use at 1/5000 - 1/20000.", "FlowCytIntra-species-checked": "testedAndGuaranteed", "FlowCytIntra-species-dilution-info": "1/50", "FlowCytIntra-species-notes": "<a href='/en-us/products/primary-antibodies/rabbit-igg-monoclonal-epr25a-isotype-control-ab172730'>ab172730</a> - Rabbit monoclonal IgG, is suitable for use as an isotype control with this antibody.", "IHCP-species-checked": "testedAndGuaranteed", "IHCP-species-dilution-info": "1/500", "IHCP-species-notes": "" }, "Mouse": { "ICCIF-species-checked": "testedAndGuaranteed", "ICCIF-species-dilution-info": "", "ICCIF-species-notes": "", "IP-species-checked": "testedAndGuaranteed", "IP-species-dilution-info": "1/30", "IP-species-notes": "", "WB-species-checked": "testedAndGuaranteed", "WB-species-dilution-info": "1/1000", "WB-species-notes": "For unpurified use at 1/5000 - 1/20000.", "FlowCytIntra-species-checked": "guaranteed", "FlowCytIntra-species-dilution-info": "", "FlowCytIntra-species-notes": "", "IHCP-species-checked": "testedAndGuaranteed", "IHCP-species-dilution-info": "1/500", "IHCP-species-notes": "" }, "Rat": { "ICCIF-species-checked": "guaranteed", "ICCIF-species-dilution-info": "", "ICCIF-species-notes": "", "IP-species-checked": "guaranteed", "IP-species-dilution-info": "", "IP-species-notes": "", "WB-species-checked": "testedAndGuaranteed", "WB-species-dilution-info": "1/1000", "WB-species-notes": "For unpurified use at 1/5000 - 1/20000.", "FlowCytIntra-species-checked": "guaranteed", "FlowCytIntra-species-dilution-info": "", "FlowCytIntra-species-notes": "", "IHCP-species-checked": "testedAndGuaranteed", "IHCP-species-dilution-info": "1/500", "IHCP-species-notes": "" } } }

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Product details

Patented technology
Our RabMAb^® technology is a patented hybridoma-based technology for making rabbit monoclonal antibodies. For details on our patents, please refer to RabMAb^® patents.

What are the advantages of a recombinant monoclonal antibody?
This product is a recombinant monoclonal antibody, which offers several advantages including:

- High batch-to-batch consistency and reproducibility
- Improved sensitivity and specificity
- Long-term security of supply
- Animal-free batch production

For more information, read more on recombinant antibodies.

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Properties and storage information

Form

Liquid

Purification technique

Affinity purification Protein A

Storage buffer

pH: 7.2 - 7.4 Preservative: 0.01% Sodium azide Constituents: PBS, 40% Glycerol (glycerin, glycerine), 0.05% BSA

Shipped at conditions

Blue Ice

Appropriate short-term storage duration

1-2 weeks

Appropriate short-term storage conditions

+4°C

Appropriate long-term storage conditions

-20°C

Aliquoting information

Upon delivery aliquot

Storage information

Avoid freeze / thaw cycle

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Supplementary information

This supplementary information is collated from multiple sources and compiled automatically.

The eIF4E protein also known as the eukaryotic translation initiation factor 4E functions mainly in the initiation phase of mRNA translation. It plays a role by binding to the 7-methylguanylate cap structure at the 5’ end of mRNA facilitating ribosome assembly on mRNA. The molecular weight of eIF4E is approximately 25 kDa and it is ubiquitously expressed in various tissues across eukaryotic organisms. Additionally phosphorylation of eIF4E affects its activity and is an important post-translational modification.

Biological function summary

EIF4E regulates gene expression at the translational level and is a part of the eIF4F complex which also includes eIF4A and eIF4G. This complex is essential for the recruitment of ribosomes to the mRNA impacting the rate of protein synthesis. Changes in eIF4E levels can alter the translational efficiency of specific mRNAs thereby influencing cellular growth and proliferation.

Pathways

EIF4E directly involves in the mTOR signaling pathway which regulates cell growth proliferation and survival. Within this pathway eIF4E interacts with proteins such as 4EBP1 which binds to eIF4E and inhibits its function in the absence of phosphorylation by mTOR. This interaction illustrates the control mechanism of protein synthesis under different cellular conditions connecting it to various signaling cascades.

EIF4E has been linked to cancer and neurodegenerative conditions. In cancer overexpression of eIF4E leads to increased translation of oncogenes facilitating tumorigenesis. The mTOR pathway proteins like mTOR and 4EBP1 are often dysregulated in these cases. Conversely its role in neurological disorders involves the aberrant regulation of synaptic proteins like PSD95 impacting neuronal communication and function.

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Product protocols

For this product, it's our understanding that no specific protocols are required. You can visit:

Visit the General protocols
Visit the Troubleshooting

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Target data

Acts in the cytoplasm to initiate and regulate protein synthesis and is required in the nucleus for export of a subset of mRNAs from the nucleus to the cytoplasm which promotes processes such as RNA capping, processing and splicing (PubMed : 11606200, PubMed : 22578813, PubMed : 22684010, PubMed : 24335285, PubMed : 29987188). Component of the protein complex eIF4F, which is involved in the recognition of the mRNA cap, ATP-dependent unwinding of 5'-terminal secondary structure and recruitment of mRNA to the ribosome (By similarity). This protein recognizes and binds the 7-methylguanosine (m7G)-containing mRNA cap during an early step in the initiation of protein synthesis and facilitates ribosome binding by inducing the unwinding of the mRNAs secondary structures (PubMed : 16271312, PubMed : 22578813). Together with EIF4G1, antagonizes the scanning promoted by EIF1-EIF4G1 and is required for TISU translation, a process where the TISU element recognition makes scanning unnecessary (PubMed : 29987188). In addition to its role in translation initiation, also acts as a regulator of translation and stability in the cytoplasm (PubMed : 24335285). Component of the CYFIP1-EIF4E-FMR1 complex which binds to the mRNA cap and mediates translational repression : in the complex, EIF4E mediates the binding to the mRNA cap (By similarity). Component of a multiprotein complex that sequesters and represses translation of proneurogenic factors during neurogenesis (By similarity). In P-bodies, component of a complex that mediates the storage of translationally inactive mRNAs in the cytoplasm and prevents their degradation (PubMed : 24335285). May play an important role in spermatogenesis through translational regulation of stage-specific mRNAs during germ cell development (By similarity). As well as its roles in translation, also involved in mRNA nucleocytoplasmic transport (By similarity). Its role in mRNA export from the nucleus to the cytoplasm relies on its ability to bind the m7G cap of RNAs and on the presence of the 50-nucleotide EIF4E sensitivity element (4ESE) in the 3'UTR of sensitive transcripts (By similarity). Interaction with the 4ESE is mediated by LRPPRC which binds simultaneously to both EIF4E and the 4ESE, thereby acting as a platform for assembly for the RNA export complex (By similarity). EIF4E-dependent mRNA export is independent of ongoing protein or RNA synthesis and is also NFX1-independent but is XPO1-dependent with LRPPRC interacting with XPO1 to form an EIF4E-dependent mRNA export complex (By similarity). Alters the composition of the cytoplasmic face of the nuclear pore to promote RNA export by reducing RANBP2 expression, relocalizing nucleoporin NUP214 and increasing expression of RANBP1 and RNA export factors DDX19 and GLE1 (By similarity). Promotes the nuclear export of cyclin CCND1 mRNA (By similarity). Promotes the nuclear export of NOS2/iNOS mRNA (PubMed : 23471078). Promotes the nuclear export of MDM2 mRNA (PubMed : 22684010). Promotes the export of additional mRNAs, including others involved in the cell cycle (By similarity). In the nucleus, binds to capped splice factor-encoding mRNAs and stimulates their nuclear export to enhance splice factor production by increasing their cytoplasmic availability to the translation machinery (By similarity). May also regulate splicing through interaction with the spliceosome in an RNA and m7G cap-dependent manner (By similarity). Also binds to some pre-mRNAs and may play a role in their recruitment to the spliceosome (By similarity). Promotes steady-state capping of a subset of coding and non-coding RNAs by mediating nuclear export of capping machinery mRNAs including RNMT, RNGTT and RAMAC to enhance their translation (By similarity). Stimulates mRNA 3'-end processing by promoting the expression of several core cleavage complex factors required for mRNA cleavage and polyadenylation, and may also have a direct effect through its interaction with the CPSF3 cleavage enzyme (By similarity). Rescues cells from apoptosis by promoting activation of serine/threonine-protein kinase AKT1 through mRNA export of NBS1 which potentiates AKT1 phosphorylation and also through mRNA export of AKT1 effectors, allowing for increased production of these proteins (By similarity).

See full target information EIF4E

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Publications (8)

Recent publications for all applications. Explore the full list and refine your search

Frontiers in immunology 16:1619538 PubMed40895568

2025

A fusion ORF3a-E subgenomic RNA involved in SARS-CoV-2 infection efficacy by influencing cellular protein synthesis.

Applications

Unspecified application

Species

Unspecified reactive species

Yifan Zhang,Jing Li,Xinglong Zhang,Xin Zhang,Jiali Li,Heng Li,Xin Zhao,Zihan Zhang,Yingyan Li,Keqi Chen,Shasha Peng,Haijing Shi,Longding Liu

eNeuro 11: PubMed39557567

2024

The Overexpression of eIF4E Decreases Oxytocin Levels and Induces Social Cognitive Behavioral Disorders in Mice.

Applications

Unspecified application

Species

Unspecified reactive species

Juan Wang,Sijie Chen,Miao Zhao,Lizhen Zheng,Xinxin Huang,Xin Hong,Jie Kang,Ping Ou,Longsheng Huang

The Journal of biological chemistry 300:107890 PubMed39413876

2024

Oncogenic accumulation of cysteine promotes cancer cell proliferation by regulating the translation of D-type cyclins.

Applications

Unspecified application

Species

Unspecified reactive species

Yumi Okano,Tomoaki Yamauchi,Runa Fukuzaki,Akito Tsuruta,Yuya Yoshida,Yuya Tsurudome,Kentaro Ushijima,Naoya Matsunaga,Satoru Koyanagi,Shigehiro Ohdo

Advanced science (Weinheim, Baden-Wurttemberg, Germany) 11:e2305902 PubMed37953462

2023

A Mammalian Conserved Circular RNA CircLARP1B Regulates Hepatocellular Carcinoma Metastasis and Lipid Metabolism.

Applications

Unspecified application

Species

Unspecified reactive species

Jingxin Li,Xiaolin Wang,Liang Shi,Boqiang Liu,Zhiyong Sheng,Shuhui Chang,Xiujun Cai,Ge Shan

Development (Cambridge, England) 150: PubMed37306388

2023

The translation initiation factor homolog eif4e1c regulates cardiomyocyte metabolism and proliferation during heart regeneration.

Applications

Unspecified application

Species

Unspecified reactive species

Anupama Rao,Baken Lyu,Ishrat Jahan,Anna Lubertozzi,Gao Zhou,Frank Tedeschi,Eckhard Jankowsky,Junsu Kang,Bryan Carstens,Kenneth D Poss,Kedryn Baskin,Joseph Aaron Goldman

Journal of molecular and cellular cardiology 157:1-13 PubMed33819456

2021

RETRACTED: The role of ATG-7 contributes to pulmonary hypertension by impacting vascular remodeling.

Applications

Unspecified application

Species

Unspecified reactive species

Xi Yang,Li Zhang,Jian-Qiang Ye,Xiao-Hui Wu,Xi-Xi Zeng,Liang-Wan Chen,Yu-Mei Li

Frontiers in neurology 11:557269 PubMed33424735

2020

CD103 Deficiency Promotes Autism (ASD) and Attention-Deficit Hyperactivity Disorder (ADHD) Behavioral Spectra and Reduces Age-Related Cognitive Decline.

Applications

Unspecified application

Species

Unspecified reactive species

Michelle Jhun,Akanksha Panwar,Ryan Cordner,Dwain K Irvin,Lucia Veiga,Nicole Yeager,Robert N Pechnick,Hanna Schubloom,Keith L Black,Christopher J Wheeler

Experimental neurology 299:299-307 PubMed28610844

2017

Overexpression of eIF4F components in meningiomas and suppression of meningioma cell growth by inhibiting translation initiation.

Applications

Unspecified application

Species

Unspecified reactive species

Janet L Oblinger,Sarah S Burns,Jie Huang,Li Pan,Yulin Ren,Rulong Shen,A Douglas Kinghorn,D Bradley Welling,Long-Sheng Chang

View all publications

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Product promise

We are committed to supporting your work with high-quality reagents, and we're here for you every step of the way. In the unlikely event that one of our products does not perform as expected, you're protected by our Product Promise.

For full details, please see our Terms & Conditions

Please note: All products are 'FOR RESEARCH USE ONLY. NOT FOR USE IN DIAGNOSTIC OR THERAPEUTIC PROCEDURES'.

For licensing inquiries, please contact partnerships@abcam.com

Anti-eIF4E antibody [Y449]

Flow Cytometry (Intracellular) - Anti-eIF4E antibody [Y449] (AB33768)

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-eIF4E antibody [Y449] (AB33768)

Immunocytochemistry/ Immunofluorescence - Anti-eIF4E antibody [Y449] (AB33768)

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-eIF4E antibody [Y449] (AB33768)

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-eIF4E antibody [Y449] (AB33768)

Immunoprecipitation - Anti-eIF4E antibody [Y449] (AB33768)

Western blot - Anti-eIF4E antibody [Y449] (AB33768)

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Key facts

Host species

Clonality

Clone number

Isotype

Carrier free

Reacts with

Applications

Immunogen

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Reactivity data

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Properties and storage information

Form

Purification technique

Storage buffer

Shipped at conditions

Appropriate short-term storage duration

Appropriate short-term storage conditions

Appropriate long-term storage conditions

Aliquoting information

Storage information

Supplementary information

Biological function summary

Pathways

Product protocols

Target data

Publications (8)

Product promise