Name: Anti-eIF5A antibody [EP526Y]
SKU: ab32443
Rating: 4 (1 reviews)

Anti-eIF5A antibody [EP526Y] (ab32443) is a rabbit monoclonal antibody detecting eIF5A in Western Blot, Flow Cytometry (Intra), Flow Cytometry, IHC-P, ICC/IF. Suitable for Human, Mouse, Rat,.

- Biophysical QC for unrivalled batch-batch consistency

- Over 10 publications

- Trusted since 2006

Images

Western blot - Anti-eIF5A antibody [EP526Y] (AB32443), expandable thumbnail

Publications

Key facts

Isotype: IgG
Host species: Rabbit
Storage buffer: pH: 7.2 - 7.4
Preservative: 0.01% Sodium azide
Constituents: 50% Glycerol (glycerin, glycerine), 49% PBS, 0.05% BSA
Form: Liquid
Clonality: Monoclonal

Immunogen

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

Reactivity data

Select an application

Product promiseTestedExpectedPredictedNot recommended

	IHC-P	WB	ICC/IF	Flow Cyt (Intra)
Human	Tested	Tested	Tested	Tested
Mouse	Tested	Tested	Tested	Expected
Rat	Tested	Tested	Tested	Expected
Synthetic peptide - Human	Not recommended	Tested	Not recommended	Not recommended

Tested
Tested

Species	Dilution info	Notes
Species Human	Dilution info -	Notes Perform heat-mediated antigen retrieval with citrate buffer pH 6 before commencing with IHC staining protocol.
Species Rat	Dilution info 1/1000	Notes -
Species Mouse	Dilution info 1/1000	Notes -

Not recommended
Not recommended

Species	Dilution info	Notes
Species Synthetic peptide - Human	Dilution info -	Notes -

Tested
Tested

Species	Dilution info	Notes
Species Synthetic peptide - Human	Dilution info 1/5000 - 1/10000	Notes -
Species Human	Dilution info 1/5000 - 1/10000	Notes -
Species Mouse	Dilution info 1/1000	Notes -
Species Rat	Dilution info 1/1000	Notes -

Tested
Tested

Species	Dilution info	Notes
Species Human	Dilution info 1/500	Notes -
Species Rat	Dilution info 1/250	Notes -
Species Mouse	Dilution info 1/250	Notes -

Not recommended
Not recommended

Species	Dilution info	Notes
Species Synthetic peptide - Human	Dilution info -	Notes -

Tested
Tested

Species	Dilution info	Notes
Species Human	Dilution info 1/50 - 1/80	Notes ab172730 - Rabbit monoclonal IgG, is suitable for use as an isotype control with this antibody.

Expected
Expected

Species	Dilution info	Notes
Species Rat, Mouse	Dilution info Use at an assay dependent concentration.	Notes -

Not recommended
Not recommended

Species	Dilution info	Notes
Species Synthetic peptide - Human	Dilution info -	Notes -

Associated Products

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3 products for Alternative Product

Target data

See full target information EIF5A

Function

Translation factor that promotes translation elongation and termination, particularly upon ribosome stalling at specific amino acid sequence contexts (PubMed:33547280). Binds between the exit (E) and peptidyl (P) site of the ribosome and promotes rescue of stalled ribosome: specifically required for efficient translation of polyproline-containing peptides as well as other motifs that stall the ribosome (By similarity). Acts as a ribosome quality control (RQC) cofactor by joining the RQC complex to facilitate peptidyl transfer during CAT tailing step (By similarity). Also involved in actin dynamics and cell cycle progression, mRNA decay and probably in a pathway involved in stress response and maintenance of cell wall integrity (PubMed:16987817). With syntenin SDCBP, functions as a regulator of p53/TP53 and p53/TP53-dependent apoptosis (PubMed:15371445). Regulates also TNF-alpha-mediated apoptosis (PubMed:15452064, PubMed:17187778). Mediates effects of polyamines on neuronal process extension and survival (PubMed:17360499). Is required for autophagy by assisting the ribosome in translating the ATG3 protein at a specific amino acid sequence, the 'ASP-ASP-Gly' motif, leading to the increase of the efficiency of ATG3 translation and facilitation of LC3B lipidation and autophagosome formation (PubMed:29712776). (Microbial infection) Cellular cofactor of human T-cell leukemia virus type I (HTLV-1) Rex protein and of human immunodeficiency virus type 1 (HIV-1) Rev protein, essential for mRNA export of retroviral transcripts.

Alternative names

Eukaryotic translation initiation factor 5A-1, eIF-5A-1, eIF-5A1, Eukaryotic initiation factor 5A isoform 1, Rev-binding factor, eIF-4D, eIF-5A, EIF5A

Key facts

Isotype: IgG
Host species: Rabbit
Storage buffer: pH: 7.2 - 7.4
Preservative: 0.01% Sodium azide
Constituents: 50% Glycerol (glycerin, glycerine), 49% PBS, 0.05% BSA
Form: Liquid
Clonality: Monoclonal
Immunogen: The exact immunogen used to generate this antibody is proprietary information.
Clone number: EP526Y
Purification technique: Affinity purification Protein A
Specificity: This antibody shows low affinity in recognizing eIF5A2 recombinant protein.
Concentration

Storage

Shipped at conditions: Blue Ice
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

Notes

What is this antibody validated in?

Anti-eIF5A antibody [EP526Y] (ab32443) is a rabbit recombinant monoclonal antibody and is validated for use in Western Blot (WB), Flow Cytometry (Intra), Flow Cytometry (Flow Cyt), Immunohistochemistry (IHC-P), Immunocytochemistry/immunofluorescence (ICC/IF) in Human, Mouse, Rat, samples.

What is the molecular weight of eIF5A?

Anti-eIF5A [EP526Y] (ab32443) specifically detects a band for eIF5A (UniProt: P63241) at a molecular weight of 18kDa.

Trusted by the scientific community

Anti-eIF5A [EP526Y] (ab32443) was first used in a scientific publication in 2006 and has been cited over 10 times in peer-reviewed journals.

Trial sizes available!

Test your antibody or perform pre-screening before committing to a larger quantity. Sold in 10µl. Discover our selection of trial-size antibodies.

Other related products

We have a range of other formats of antibody clone [EP526Y] also available for your convenience:
ab32443, Carrier free - ab239816

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.

Supplementary info

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

Activity summary

EIF5A also known as eukaryotic translation initiation factor 5A is a small protein with a molecular mass of approximately 18 kDa. It plays a significant mechanical role in the translation process by facilitating the formation of the first peptide bond in protein synthesis. eIF5A is expressed ubiquitously across various tissues and is noted for being the only protein known to undergo the unique post-translational modification called hypusination which is necessary for its function.

Biological function summary

EIF5A participates in regulating translation cell proliferation and apoptosis. eIF5A functions as part of a complex involved in ribosome-associated protein synthesis supporting the elongation of polyproline-containing peptides. It helps in maintaining cellular homeostasis by modulating the translation of specific sets of mRNAs that are critical for various cellular responses.

Pathways

EIF5A's role is particularly relevant in translation elongation and mRNA turnover pathways. It interacts closely with the elongation factors eEF2 and eEF1A to promote efficient protein synthesis. In the mRNA turnover pathway eIF5A has connections with proteins such as Dcp2 and Xrn1 which play a role in the degradation of mRNA thereby influencing mRNA stability and turnover.

Associated diseases and disorders

EIF5A is linked to cancer and neurodegenerative diseases. Alterations in its function and expression levels have been observed in several cancer types highlighting its role in tumor progression. The protein's connection to apoptosis pathways suggests its involvement in neurodegenerative disorders such as Alzheimer's disease where cell death and tissue degeneration are prevalent. eIF5A associates with proteins like Bcl-2 in cancer and Tau in neurodegeneration indicating its varied impact on disease processes.

Product promise

We are dedicated to supporting your work with high quality reagents and we are here for you every step of the way should you need us.

In the unlikely event of one of our products not working as expected, you are covered by our product promise.

Full details and terms and conditions can be found here:
Terms & Conditions.

11 product images

Western blot - Anti-eIF5A antibody [EP526Y] (ab32443)
EIF5A Western blot staining of Jurkat cell lysate using rabbit Anti-eIF5A antibody
All lanes: Western blot - Anti-eIF5A antibody [EP526Y] (ab32443) at 1/10000 dilution
All lanes: Jurkat cell lysate
Predicted band size: 16 kDa
Observed band size: 18 kDa
Immunocytochemistry/ Immunofluorescence - Anti-eIF5A antibody [EP526Y] (ab32443)
Immunocytochemistry/Immunofluorescence analysis of HeLa (human cervix adenocarcinoma) cells labelling eIF5A with purified ab32443 at 1/500. Cells were fixed with 4% Paraformaldehyde. An Alexa Fluor^® 488-conjugated goat anti-rabbit IgG (Goat Anti-Rabbit IgG H&L (Alexa Fluor® 488) ab150077) at 1/1000 dilution was used as the secondary antibody. Nuclei couterstained with DAPI (blue).
Secondary Only Control: PBS was used instead of the primary antibody as the negative control
Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-eIF5A antibody [EP526Y] (ab32443)
ab32443 at a 1:250 dilution staining eIF5A in human adenocarcinoma of uterus using Immunohistochemistry, Paraffin Embedded Tissue.
Perform heat mediated antigen retrieval with citrate buffer pH 6 before commencing with IHC staining protocol.
Flow Cytometry (Intracellular) - Anti-eIF5A antibody [EP526Y] (ab32443)
Overlay histogram showing Jurkat cells stained with ab32443 (red line). The cells were fixed with methanol (5 min) and then permeabilized with 0.1% PBS-Tween for 20 min. The cells were then incubated in 1x PBS / 10% normal goat serum / 0.3M glycine to block non-specific protein-protein interactions followed by the antibody (ab32443, 1/50 dilution) for 30 min at 22°C. The secondary antibody used was DyLight® 488 goat anti-rabbit IgG (H+L) (Goat Anti-Rabbit IgG H&L (DyLight® 488) preadsorbed ab96899) at 1/500 dilution for 30 min at 22°C. Isotype control antibody (black line) was rabbit monoclonal IgG (0.5μg/1x10⁶ cells) used under the same conditions. Acquisition of >5,000 events was performed. This antibody gave a positive signal in Jurkat cells fixed with 4% paraformaldehyde (10 min)/permeabilized in 0.1% PBS-Tween used under the same conditions.
Western blot - Anti-eIF5A antibody [EP526Y] (ab32443)
Blocking buffer: 5% NFDM/TBST
This antibody shows low affinity in recognizing eIF5A2 recombinant protein.
All lanes: Western blot - Anti-eIF5A antibody [EP526Y] (ab32443) at 1/2000 dilution
Lane 1: Western blot - Recombinant Human eIF5A protein (Recombinant Human eIF5A protein ab87457) at 0.01 µg
Lane 2: Western blot - Recombinant Human eIF5A2 protein (Recombinant Human eIF5A2 protein ab99140) at 0.01 µg
Secondary
All lanes: Western blot - Goat Anti-Rabbit IgG H&L (HRP) (Goat Anti-Rabbit IgG H&L (HRP) ab97051) at 1/20000 dilution
Developed using the ECL technique.
Predicted band size: 16 kDa
Observed band size: 15 kDa, 20 kDa
Exposure time: 20s
Immunocytochemistry/ Immunofluorescence - Anti-eIF5A antibody [EP526Y] (ab32443)
Immunofluorescent analysis of 4% Paraformaldehyde-fixed, 0.1% TritonX-100 permeabilized C6 (rat glial tumor glial cell) labelling eIF5A with ab32443 at 1/250 dilution (Green).
Confocal image showing Mitochondria staining in C6 cell line.
Nuclear DNA was labelled with DAPI (shown in blue).
Secondary used was Goat Anti-Rabbit IgG H&L (Alexa Fluor® 488) preadsorbed ab150081 Goat Anti-Rabbit IgG H&L (Alexa Fluor® 488) preadsorbed at 1/1000 (2 ?g/ml).
Alexa Fluor® 594 Anti-alpha Tubulin antibody [DM1A] - Microtubule Marker ab195889 Anti-alpha Tubulin mouse monoclonal antibody -Microtubule Marker (Alexa Fluor® 594) was used as a counterstain at 1/200 (2.5?g/ml) dilution.
Image was taken with a confocal microscope(Leica-Microsystems, TCS SP8).
Immunocytochemistry/ Immunofluorescence - Anti-eIF5A antibody [EP526Y] (ab32443)
Immunofluorescent analysis of 4% Paraformaldehyde-fixed, 0.1% TritonX-100 permeabilized NIH/3T3 (mouse embryonic fibroblast) labelling eIF5A with ab32443 at 1/250 dilution (Green).
Confocal image showing Mitochondria staining in NIH/3T3 cell line.
Nuclear DNA was labelled with DAPI (shown in blue).
Secondary used was Goat Anti-Rabbit IgG H&L (Alexa Fluor® 488) preadsorbed ab150081 Goat Anti-Rabbit IgG H&L (Alexa Fluor® 488) preadsorbed at 1/1000 (2 ?g/ml).
Alexa Fluor® 594 Anti-alpha Tubulin antibody [DM1A] - Microtubule Marker ab195889 Anti-alpha Tubulin mouse monoclonal antibody -Microtubule Marker (Alexa Fluor® 594) was used as a counterstain at 1/200 (2.5?g/ml) dilution.
Image was taken with a confocal microscope(Leica-Microsystems, TCS SP8).
Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-eIF5A antibody [EP526Y] (ab32443)
Immunohistochemical analysis of paraffin-embedded Mouse cardiac muscle labeling eIF5A with ab32443 at 1/1000 dilution (0.101 ug/ml) followed by a ready to use LeicaDS9800 (Bond™ Polymer Refine Detection). Negative control: Negligible staining on the mouse cardiac muscle. The section was incubated with ab32443 for 30 mins at room temperature. The immunostaining was performed on a Leica Biosystems BOND® RX instrument. Secondary antibody only control: Secondary antibody is a ready to use LeicaDS9800 (Bond™ Polymer Refine Detection). Heat mediated antigen retrieval was performed with Tris-EDTA buffer (pH 9.0, Epitope Retrieval Solution2) for 20 mins.
Western blot - Anti-eIF5A antibody [EP526Y] (ab32443)
Blocking and Diluting buffer and concentration: 5% NFDM/TBST.
Low expression control: mouse and rat heart.
In Western blot, anti-GAPDH antibody (Anti-GAPDH antibody [EPR16891] - Loading Control ab181602) loading control staining at 1/200000 dilution.
All lanes: Western blot - Anti-eIF5A antibody [EP526Y] (ab32443) at 1/1000 dilution
Lane 1: Jurkat (human T cell leukemia T lymphocyte from peripheral blood) whole cell lysate at 20 µg
Lane 2: NIH/3T3 (mouse embryonic fibroblast) whole cell lysate at 20 µg
Lane 3: RAW 264.7 (mouse Abelson murine leukemia virus-induced tumor macrophage) whole cell lysate at 20 µg
Lane 4: C6 (rat glial tumor glial cell) whole cell lysate at 20 µg
Lane 5: PC-12 (rat adrenal gland pheochromocytoma cell) whole cell lysate at 20 µg
Lane 6: Mouse pancreas tissue lysate at 20 µg
Lane 7: Mouse heart tissue lysate at 20 µg
Lane 8: Rat pancreas tissue lysate at 20 µg
Lane 9: Rat heart tissue lysate at 20 µg
Secondary
All lanes: Western blot - Goat Anti-Rabbit IgG H&L (HRP) (Goat Anti-Rabbit IgG H&L (HRP) ab97051) at 1/20000 dilution
Predicted band size: 16 kDa
Observed band size: 16 kDa
Exposure time: 1s
Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-eIF5A antibody [EP526Y] (ab32443)
Immunohistochemical analysis of paraffin-embedded Rat pancreas labeling eIF5A with ab32443 at 1/1000 dilution (0.101 ug/ml) followed by a ready to use LeicaDS9800 (Bond™ Polymer Refine Detection). Positive staining on the Rat pancreas. The section was incubated with ab32443 for 30 mins at room temperature. The immunostaining was performed on a Leica Biosystems BOND® RX instrument. Secondary antibody only control: Secondary antibody is a ready to use LeicaDS9800 (Bond™ Polymer Refine Detection). Heat mediated antigen retrieval was performed with Tris-EDTA buffer (pH 9.0, Epitope Retrieval Solution2) for 20 mins.
Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-eIF5A antibody [EP526Y] (ab32443)
Immunohistochemical analysis of paraffin-embedded Mouse pancreas labeling eIF5A with ab32443 at 1/1000 dilution (0.101 ug/ml) followed by a ready to use LeicaDS9800 (Bond™ Polymer Refine Detection). Positive staining on the Mouse pancreas. The section was incubated with ab32443 for 30 mins at room temperature. The immunostaining was performed on a Leica Biosystems BOND® RX instrument. Secondary antibody only control: Secondary antibody is a ready to use LeicaDS9800 (Bond™ Polymer Refine Detection). Heat mediated antigen retrieval was performed with Tris-EDTA buffer (pH 9.0, Epitope Retrieval Solution2) for 20 mins.