AB215231

Alexa Fluor® 647 Anti-eIF2A antibody [EPR11042]

RabMAb
Recombinant
KO Validated
What is this?

Be the first to review this product! Submit a review

(2 Publications)

Rabbit Recombinant Monoclonal EIF2A antibody - conjugated to Alexa Fluor® 647. Suitable for ICC/IF and reacts with Human samples. Cited in 2 publications.

View Alternative Names

CDA02, MSTP004, MSTP089, EIF2A, Eukaryotic translation initiation factor 2A, eIF-2A, 65 kDa eukaryotic translation initiation factor 2A

2 Images

Immunocytochemistry/ Immunofluorescence - Alexa Fluor® 647 Anti-eIF2A antibody [EPR11042] (AB215231)

ICC/IF

Lab

Immunocytochemistry/ Immunofluorescence - Alexa Fluor® 647 Anti-eIF2A antibody [EPR11042] (AB215231)

ab215231 staining eIF2A in HeLa cells. The cells were fixed with 100% methanol (5 min), permeabilized with 0.1% Triton X-100 for 5 minutes and then blocked with 1% BSA/10% normal goat serum/0.3M glycine in 0.1% PBS-Tween for 1h. The cells were then incubated overnight at +4°C with ab215231 at 1/100 dilution (shown in red) and ab195887, Mouse monoclonal to alpha Tubulin (Alexa Fluor^® 488), at 1/250 dilution (shown in green). Nuclear DNA was labelled with DAPI (shown in blue).

Image was taken with a confocal microscope (Leica-Microsystems, TCS SP8).

ICC/IF

Lab

Immunocytochemistry/ Immunofluorescence - Alexa Fluor® 647 Anti-eIF2A antibody [EPR11042] (AB215231)

ab215231 staining eIF2A in wild-type HAP1 cells (top panel) and EIF2A knockout HAP1 cells (bottom panel). The cells were fixed with 100% methanol (5min), permeabilized with 0.1% Triton X-100 for 5 minutes and then blocked with 1% BSA/10% normal goat serum/0.3M glycine in 0.1% PBS-Tween for 1h. The cells were then incubated with ab215231 at 1/500 dilution (shown in red) and ab195887 at 1/250 dilution (shown in green) overnight at +4°C. Nuclear DNA was labelled in blue with DAPI.

Image was taken with a confocal microscope (Leica-Microsystems, TCS SP8).

519 Alexa Fluor® 488

Alexa Fluor® 488 Anti-eIF2A antibody [EPR11042]
HRP

HRP Anti-eIF2A antibody [EPR11042]
Unconjugated

Anti-eIF2A antibody [EPR11042]
Carrier free

Anti-eIF2A antibody [EPR11042] - BSA and Azide free

Key facts

Host species

Rabbit

Clonality

Monoclonal

Clone number

EPR11042

Isotype

IgG

Conjugation

Alexa Fluor® 647

Excitation/Emission

Ex: 650nm, Em: 665nm

Carrier free

Reacts with

Human

Applications

ICC/IF

applications

Immunogen

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

Specificity

From Jan 2026, QC testing of replenishment batches of this primary conjugate changed. All tested and expected application and reactive species combinations are still covered by our Abcam product promise. However, the replenishment lots are subjected to bioanalytical testing only. For more information on a specific batch, please contact our Scientific Support who will be happy to help.

style

left-column

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"} }, "product-promise": { "all": "all", "testedAndGuaranteed": "tested", "guaranteed": "expected", "predicted": "predicted", "notRecommended": "not-recommended" } }, "values": { "Human": { "ICCIF-species-checked": "testedAndGuaranteed", "ICCIF-species-dilution-info": "1/100 - 1/500", "ICCIF-species-notes": "<p>This product gave a positive signal in cells fixed with 100% methanol (5 min)</p>" }, "Mouse": { "ICCIF-species-checked": "predicted", "ICCIF-species-dilution-info": "", "ICCIF-species-notes": "" }, "Rat": { "ICCIF-species-checked": "predicted", "ICCIF-species-dilution-info": "", "ICCIF-species-notes": "" } } }

style

left-column

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.

Alexa Fluor® is a registered trademark of Molecular Probes, Inc, a Thermo Fisher Scientific Company. The Alexa Fluor® dye included in this product is provided under an intellectual property license from Life Technologies Corporation. As this product contains the Alexa Fluor® dye, the purchase of this product conveys to the buyer the non-transferable right to use the purchased product and components of the product only in research conducted by the buyer (whether the buyer is an academic or for-profit entity). As this product contains the Alexa Fluor® dye the sale of this product is expressly conditioned on the buyer not using the product or its components, or any materials made using the product or its components, in any activity to generate revenue, which may include, but is not limited to use of the product or its components: in manufacturing; (ii) to provide a service, information, or data in return for payment (iii) for therapeutic, diagnostic or prophylactic purposes; or (iv) for resale, regardless of whether they are sold for use in research. For information on purchasing a license to this product for purposes other than research, contact Life Technologies Corporation, 5781 Van Allen Way, Carlsbad, CA 92008 USA or outlicensing@thermofisher.com.

style

left-column

Properties and storage information

Form

Liquid

Purification technique

Affinity purification Protein A

Storage buffer

pH: 7.4 Preservative: 0.02% Sodium azide Constituents: PBS, 30% Glycerol (glycerin, glycerine), 1% 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|Store in the dark

style

left-column

Supplementary information

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

The eIF2A also referred to as eukaryotic translation initiation factor 2A is a protein involved in the initiation of mRNA translation. The eIF2A protein is distinct from eIF2α despite the similarity in their names. Its molecular weight is approximately 65 kDa. Expression of eIF2A occurs mainly in the cytoplasm of cells where it participates in the protein synthesis process. eIF2A functions as a mediator that targets the initiator methionylated-tRNA to the small ribosomal subunit in a manner independent from eIF2 complex.

Biological function summary

EIF2A impacts the translation mechanism by facilitating the binding of Met-tRNAi to the ribosome under particular conditions especially during stress responses where canonical eIF2 might be inhibited. It operates independently from the larger eIF2 complex which also includes eIF2β and eIF2γ subunits. This independent activity allows eIF2A to serve as a backup mechanism for translation initiation when the normal pathway is impaired.

Pathways

Translation regulation involves interaction with cellular stress pathways and the integrated stress response (ISR). eIF2A operates within pathways that respond to physiological stresses such as nutrient deprivation and oxidative stress which trigger alterations in protein synthesis rates. eIF2A is related to the eIF2 kinase which phosphorylates the α subunit of eIF2 leading to a general reduction in translation initiation under stress allowing selective translation of stress-response proteins.

Irregularities in eIF2A function link to neurodegenerative diseases such as Alzheimer's disease and metabolic disorders like diabetes. These conditions often involve disruptions in the stress response pathways where eIF2A participates. The protein participates with others like PERK a kinase that phosphorylates eIF2α under endoplasmic reticulum stress contributing to disease-related changes in protein synthesis. By modulating translation under stress eIF2A becomes significant in these pathological contexts.

style

left-column

style

left-column

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

style

left-column

Target data

Functions in the early steps of protein synthesis of a small number of specific mRNAs. Acts by directing the binding of methionyl-tRNAi to 40S ribosomal subunits. In contrast to the eIF-2 complex, it binds methionyl-tRNAi to 40S subunits in a codon-dependent manner, whereas the eIF-2 complex binds methionyl-tRNAi to 40S subunits in a GTP-dependent manner.

See full target information EIF2A

style

left-column

Publications (2)

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

Science advances 11:eadu5668 PubMed40749049

2025

eIF2A regulates cell migration in a translation-independent manner.

Applications

Unspecified application

Species

Unspecified reactive species

Jennifer Jungfleisch,Neus Mestre-Farràs,Raúl Gómez-Riera,Oriane Pourcelot,Edouard Bertrand,Nadia Halidi,Fátima Gebauer

Nature cardiovascular research 2:307-321 PubMed37476204

2023

The angiopoietin receptor Tie2 is atheroprotective in arterial endothelium.

Applications

Unspecified application

Species

Unspecified reactive species

Andrey Anisimov,Shentong Fang,Karthik Amudhala Hemanthakumar,Tiit Örd,Kristof van Avondt,Raphael Chevre,Anu Toropainen,Prosanta Singha,Huda Gilani,Su D Nguyen,Sinem Karaman,Emilia A Korhonen,Ralf H Adams,Hellmut G Augustin,Katariina Öörni,Oliver Soehnlein,Minna U Kaikkonen,Kari Alitalo

View all publications

style

left-column

style

left-column

style

right-column

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

Alexa Fluor® 647 Anti-eIF2A antibody [EPR11042]

Immunocytochemistry/ Immunofluorescence - Alexa Fluor® 647 Anti-eIF2A antibody [EPR11042] (AB215231)

Immunocytochemistry/ Immunofluorescence - Alexa Fluor® 647 Anti-eIF2A antibody [EPR11042] (AB215231)

Related conjugates and formulations (4)

Key facts

Host species

Clonality

Clone number

Isotype

Conjugation

Excitation/Emission

Carrier free

Reacts with

Applications

Immunogen

Specificity

Reactivity data

Product details

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 (2)

Alternative Products

Primary Antibodies

Primary Antibodies

Complementary Products

Primary Antibodies

Primary Antibodies

Primary Antibodies

Primary Antibodies

Product promise