Date published: 2026-4-24

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EF-1 α1 Antibody (CBP-KK1): sc-21758

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Datasheets
  • EF-1 α1 Antibody (CBP-KK1) is a mouse monoclonal IgG1 κ EF-1 α1 antibody, cited in 27 publications, provided at 200 µg/ml
  • raised against Trypanosoma brucei calmodium binding proteins
  • EF-1 alpha 1 Antibody (CBP-KK1) is recommended for detection of EF-1 α1 of mammalian origin by WB, IP, IF and IHC(P)
  • Anti-EF-1 alpha 1 Antibody (CBP-KK1) is available conjugated to agarose for IP; HRP for WB, IHC(P) and ELISA; and to either phycoerythrin or FITC for IF, IHC(P) and FCM
  • also available conjugated to Alexa Fluor® 488, Alexa Fluor® 546, Alexa Fluor® 594 or Alexa Fluor® 647 for WB (RGB), IF, IHC(P) and FCM, and for use with RGB fluorescent imaging systems, such as iBright™ FL1000, FluorChem™, Typhoon, Azure and other comparable systems
  • also available conjugated to Alexa Fluor® 680 or Alexa Fluor® 790 for WB (NIR), IF and FCM; for use with Near-Infrared (NIR) detection systems, such as LI-COR®Odyssey®, iBright™ FL1000, FluorChem™, Typhoon, Azure and other comparable systems
  • m-IgGκ BP-HRP is the preferred secondary detection reagent for EF-1 α1 Antibody (CBP-KK1) for WB and IHC(P) applications. This reagent is now offered in a bundle with EF-1 α1 Antibody (CBP-KK1) (see ordering information below). For additional m-IgGκ BP conjugates see our complete list of Mouse IgG Binding Proteins.
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EF-1 α1 Antibody (CBP-KK1) is a mouse monoclonal IgG1 kappa light chain antibody that detects EF-1 alpha 1 protein of mammalian origin by western blotting (WB), immunoprecipitation (IP), immunofluorescence (IF), and immunohistochemistry with paraffin-embedded sections (IHCP). Anti-EF-1 α1 antibody (CBP-KK1) is available in both non-conjugated and various conjugated forms, including agarose, horseradish peroxidase (HRP), phycoerythrin (PE), fluorescein isothiocyanate (FITC), and multiple Alexa Fluor® conjugates. EF-1 alpha 1 plays a crucial role in protein synthesis as a component of the elongation factor-1 complex, which is essential for delivering aminoacyl tRNAs to the ribosome during translation. This process ensures accurate and efficient protein synthesis, necessary for numerous cellular functions and overall organismal health. EF-1 α1 shows predominant expression in tissues such as brain, placenta, lung, liver, kidney, and pancreas, highlighting widespread physiological importance. Located on chromosome 6q14.1, EF-1 α1 has been identified as an autoantigen in Felty syndrome, a condition characterized by rheumatoid arthritis and increased susceptibility to infections. Understanding EF-1 alpha 1′s function remains essential for researchers studying translation mechanisms and related pathologies.

For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.

Alexa Fluor® is a trademark of Molecular Probes Inc., OR., USA

LI-COR® and Odyssey® are registered trademarks of LI-COR Biosciences

EF-1 α1 Antibody (CBP-KK1) References:

  1. Possible evolution of factors involved in protein biosynthesis.  |  Nyborg, J. 1998. Acta Biochim Pol. 45: 883-94. PMID: 10397336
  2. Translational regulation by modifications of the elongation factor Tu.  |  Kraal, B., et al. 1999. Folia Microbiol (Praha). 44: 131-41. PMID: 10588048
  3. GTPases mechanisms and functions of translation factors on the ribosome.  |  Rodnina, MV., et al. 2000. Biol Chem. 381: 377-87. PMID: 10937868
  4. Domain III of elongation factor G from Thermus thermophilus is essential for induction of GTP hydrolysis on the ribosome.  |  Martemyanov, KA. and Gudkov, AT. 2000. J Biol Chem. 275: 35820-4. PMID: 10940297
  5. Eukaryotic translation elongation factor 1-alpha 1 inhibits p53 and p73 dependent apoptosis and chemotherapy sensitivity.  |  Blanch, A., et al. 2013. PLoS One. 8: e66436. PMID: 23799104
  6. Critical role of eukaryotic elongation factor 1 alpha 1 (EEF1A1) in avian reovirus sigma-C-induced apoptosis and inhibition of viral growth.  |  Zhang, Z., et al. 2015. Arch Virol. 160: 1449-61. PMID: 25854689
  7. A novel 3'tRNA-derived fragment tRF-Val promotes proliferation and inhibits apoptosis by targeting EEF1A1 in gastric cancer.  |  Cui, H., et al. 2022. Cell Death Dis. 13: 471. PMID: 35585048
  8. Nanoparticles (NPs)-mediated lncBCMA silencing to promote eEF1A1 ubiquitination and suppress breast cancer growth and metastasis.  |  Yang, K., et al. 2023. Acta Pharm Sin B. 13: 3489-3502. PMID: 37655325
  9. EEF1A1 is Involved the Regulating Neuroinflammatory Processes in Parkinson's Disease.  |  Aisha, Z., et al. 2023. J Integr Neurosci. 22: 122. PMID: 37735116
  10. UCHL3 promotes hepatocellular carcinoma progression by stabilizing EEF1A1 through deubiquitination.  |  Zhao, J., et al. 2024. Biol Direct. 19: 53. PMID: 38965582
  11. N-Acetylcysteine Inhibits Coxsackievirus B3 Replication by Downregulating Eukaryotic Translation Elongation Factor 1 Alpha 1.  |  Wang, Y., et al. 2024. Viruses. 16: PMID: 39339978
  12. Visualization of elongation factor G on the Escherichia coli 70S ribosome: the mechanism of translocation.  |  Agrawal, RK., et al. 1998. Proc Natl Acad Sci U S A. 95: 6134-8. PMID: 9600930

Ordering Information

Product NameCatalog #UNITPriceQtyFAVORITES

EF-1 α1 Antibody (CBP-KK1)

sc-21758
200 µg/ml
$322.00

EF-1 α1 Antibody (CBP-KK1): m-IgGκ BP-HRP Bundle

sc-520730
200 µg Ab, 40 µg BP
$361.00

EF-1 α1 Antibody (CBP-KK1) AC

sc-21758 AC
500 µg/ml, 25% agarose
$424.00

EF-1 α1 Antibody (CBP-KK1) HRP

sc-21758 HRP
200 µg/ml
$322.00

EF-1 α1 Antibody (CBP-KK1) FITC

sc-21758 FITC
200 µg/ml
$336.00

EF-1 α1 Antibody (CBP-KK1) PE

sc-21758 PE
200 µg/ml
$349.00

EF-1 α1 Antibody (CBP-KK1) Alexa Fluor® 488

sc-21758 AF488
200 µg/ml
$364.00

EF-1 α1 Antibody (CBP-KK1) Alexa Fluor® 546

sc-21758 AF546
200 µg/ml
$364.00

EF-1 α1 Antibody (CBP-KK1) Alexa Fluor® 594

sc-21758 AF594
200 µg/ml
$364.00

EF-1 α1 Antibody (CBP-KK1) Alexa Fluor® 647

sc-21758 AF647
200 µg/ml
$364.00

EF-1 α1 Antibody (CBP-KK1) Alexa Fluor® 680

sc-21758 AF680
200 µg/ml
$364.00

EF-1 α1 Antibody (CBP-KK1) Alexa Fluor® 790

sc-21758 AF790
200 µg/ml
$364.00

Hello, I have used this antibody for western blot and I can see two bands, one located just below the 50 kDa marker and the other one just above 35. Can I just check if this antibody can give an aspecific band at 35kDa. Could it be degradation?

Asked by: Alessio81
Thank you for your question. It would be helpful if you could call 800-457-3801, allowing for a more interactive discussion of this and other related questions.
Answered by: Technical Service
Date published: 2022-08-10

Have you ever checked whether these antibodies recognize eEF1A2 isoform?

Asked by: elongator
Thank you for your question. We have not specifically checked the reactivity for eEF1A2, but this well characterized clone has been shown to be specific for eEF1A1.
Answered by: Tech Service
Date published: 2019-04-10

Will this antibody work in my porcine samples?

Asked by: Cweed
Please contact our Technical Service Department and we would be happy to perform sequence analysis and review our data to answer any questions you may have about additional species reactivity.
Answered by: Technical Support 4
Date published: 2017-01-13

I am planning to do some IF in my mouse samples. How can I do this with a mouse monoclonal antibody?

Asked by: Cweed
We recommend using directly conjugated antibodies. This product, sc-21758, is available conjugated to AF488, AF647, and FITC.
Answered by: Technical Support 4
Date published: 2017-01-13
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Rated 1 out of 5 by from No hubo reconocimiento de la proteinaNo hubo formación de banda a la altura esperada en el marcador de proteínas en celulas C6/36 de mosquito
Date published: 2024-01-18
Rated 5 out of 5 by from WORKS WELL IN WBI got a clear band in 1:100 dilution, the band is bettwen 45kDa~60kDa
Date published: 2023-03-28
Rated 4 out of 5 by from Great antibodyThis antibody works very effectively in western blot. I can get a strong signal band in 293T cells.
Date published: 2018-04-10
Rated 5 out of 5 by from WELL FOR WBIT WORKED WELL BY WB IN LAB, WILL PURCHASE IT IN THE FUTURE
Date published: 2017-02-20
Rated 5 out of 5 by from IHC and western are greatOutstanding IHC staining results; also strong western data
Date published: 2017-01-23
Rated 5 out of 5 by from Good staining in IHCThis EF-1 alpha 1 antibody shows good results in mouse and human for IHC staining.
Date published: 2017-01-14
Rated 4 out of 5 by from We use this for western blottingWe use this for western blotting - no problems.
Date published: 2015-09-09
Rated 5 out of 5 by from Published data for WB in human H460 and H1299Published data for WB in human H460 and H1299 cells. -SCBT Publication Review
Date published: 2015-07-04
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EF-1 α1 Antibody (CBP-KK1) is rated 4.5 out of 5 by 13.
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