Date published: 2026-4-25

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eIF3β/eIF3I Antibody (A-7): sc-374156

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Datasheets
  • eIF3β/eIF3I Antibody (A-7) is a mouse monoclonal IgG2b κ eIF3β/eIF3I antibody, cited in 4 publications, provided at 200 µg/ml
  • raised against amino acids 1-300 mapping within an internal region of eIF3β of human origin
  • eIF3β/eIF3I Antibody (A-7) is recommended for detection of eIF3β of mouse, rat and human origin by WB, IP, IF, IHC(P) and ELISA
  • Anti-eIF3β/eIF3I Antibody (A-7) 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-IgG2b BP-HRP is the preferred secondary detection reagent for eIF3β/eIF3I Antibody (A-7) for WB and IHC(P) applications. This reagent is now offered in a bundle with eIF3β/eIF3I Antibody (A-7) (see ordering information below).
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eIF3β Antibody (A-7) is a mouse monoclonal IgG2b kappa light chain antibody that detects eIF3β protein of mouse, rat, and human origin by western blotting (WB), immunoprecipitation (IP), immunofluorescence (IF), immunohistochemistry with paraffin-embedded sections (IHCP), and enzyme-linked immunosorbent assay (ELISA). anti-eIF3β antibody (A-7) 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. eIF3β protein plays a crucial role in initiating protein synthesis in eukaryotic cells, functioning as part of the eukaryotic initiation factor 3 (eIF3) complex, which is essential for assembling the 40S ribosomal subunit. This complex is the largest of the eIFs and is composed of several subunits, including eIF3α, eIF3β, eIF3γ, eIF3δ, eIF3ε, eIF3Ω, eIF3η, and eIF3θ. Structural integrity of eIF3 is vital as eIF3 stabilizes the association of the eIF2-GTP-Met-tRNAiMet complex with mRNA, facilitating the formation of the pre-initiation complex necessary for translation. Dysregulation and overexpression of eIF3 proteins have been implicated in various cancers, highlighting their potential role in tumorigenesis and making eIF3 proteins a significant target for cancer research and therapeutic strategies.

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

eIF3β/eIF3I Antibody (A-7) References:

  1. Interactions of eukaryotic translation initiation factor 3 (eIF3) subunit NIP1/c with eIF1 and eIF5 promote preinitiation complex assembly and regulate start codon selection.  |  Valásek, L., et al. 2004. Mol Cell Biol. 24: 9437-55. PMID: 15485912
  2. eIF3: a connecTOR of S6K1 to the translation preinitiation complex.  |  Peterson, TR. and Sabatini, DM. 2005. Mol Cell. 20: 655-7. PMID: 16337588
  3. Translation initiation factor eIF4G-1 binds to eIF3 through the eIF3e subunit.  |  LeFebvre, AK., et al. 2006. J Biol Chem. 281: 22917-32. PMID: 16766523
  4. Initiation factor eIF3 and regulation of mRNA translation, cell growth, and cancer.  |  Dong, Z. and Zhang, JT. 2006. Crit Rev Oncol Hematol. 59: 169-80. PMID: 16829125
  5. eIF3: a versatile scaffold for translation initiation complexes.  |  Hinnebusch, AG. 2006. Trends Biochem Sci. 31: 553-62. PMID: 16920360
  6. Individual overexpression of five subunits of human translation initiation factor eIF3 promotes malignant transformation of immortal fibroblast cells.  |  Zhang, L., et al. 2007. J Biol Chem. 282: 5790-800. PMID: 17170115
  7. Reconstitution reveals the functional core of mammalian eIF3.  |  Masutani, M., et al. 2007. EMBO J. 26: 3373-83. PMID: 17581632
  8. Measles virus N protein inhibits host translation by binding to eIF3-p40.  |  Sato, H., et al. 2007. J Virol. 81: 11569-76. PMID: 17686838
  9. An oncogenic role for the phosphorylated h-subunit of human translation initiation factor eIF3.  |  Zhang, L., et al. 2008. J Biol Chem. 283: 24047-60. PMID: 18544531
  10. TEX9 and eIF3b functionally synergize to promote the progression of esophageal squamous cell carcinoma.  |  Xu, F., et al. 2019. BMC Cancer. 19: 875. PMID: 31481019
  11. EIF3B Associates with Exacerbated Clinical Features, Poor Treatment Response and Survival in Adult Philadelphia Chromosome Negative Acute Lymphoblastic Leukemia Patients.  |  Zhu, F., et al. 2021. Technol Cancer Res Treat. 20: 15330338211041464. PMID: 34617851
  12. Differential activation of two protease-activated protein kinases from reticulocytes by a Ca2+-stimulated protease and identification of phosphorylated translational components.  |  Tahara, SM. and Traugh, JA. 1982. Eur J Biochem. 126: 395-9. PMID: 6751825

Ordering Information

Product NameCatalog #UNITPriceQtyFAVORITES

eIF3β/eIF3I Antibody (A-7)

sc-374156
200 µg/ml
$322.00

eIF3β/eIF3I Antibody (A-7): m-IgG2b BP-HRP Bundle

sc-548736
200 µg Ab; 10 µg BP
$361.00

eIF3β/eIF3I Antibody (A-7) AC

sc-374156 AC
500 µg/ml, 25% agarose
$424.00

eIF3β/eIF3I Antibody (A-7) HRP

sc-374156 HRP
200 µg/ml
$322.00

eIF3β/eIF3I Antibody (A-7) FITC

sc-374156 FITC
200 µg/ml
$336.00

eIF3β/eIF3I Antibody (A-7) PE

sc-374156 PE
200 µg/ml
$349.00

eIF3β/eIF3I Antibody (A-7) Alexa Fluor® 488

sc-374156 AF488
200 µg/ml
$364.00

eIF3β/eIF3I Antibody (A-7) Alexa Fluor® 546

sc-374156 AF546
200 µg/ml
$364.00

eIF3β/eIF3I Antibody (A-7) Alexa Fluor® 594

sc-374156 AF594
200 µg/ml
$364.00

eIF3β/eIF3I Antibody (A-7) Alexa Fluor® 647

sc-374156 AF647
200 µg/ml
$364.00

eIF3β/eIF3I Antibody (A-7) Alexa Fluor® 680

sc-374156 AF680
200 µg/ml
$364.00

eIF3β/eIF3I Antibody (A-7) Alexa Fluor® 790

sc-374156 AF790
200 µg/ml
$364.00

Can eIF3β (A-7): sc-374156 monoclonal antibody be used to stain formalin-fixed, paraffin-embedded (FFPE) tissue sections?

Asked by: AbPolly
Thank you for your question. Yes, eIF3β (A-7): sc-374156 has been validated for use in IHC with paraffin-embedded sections. We recommend performing antigen retrieval with sodium citrate buffer (pH 6) and heat. The full protocol can be found here: https://www.scbt.com/scbt/resources/protocols/immunoperoxidase-staining
Answered by: Technical Support
Date published: 2017-02-25
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Rated 2 out of 5 by from Does not work on Yeast eIF3betaThis antibody is not recommended for detection of S. cerevisiae eIF3beta but just for anyone that was considering trying it, the antibody didn't detect any protein even with 1:1000 dilution, overnight incubation, and 5minute exposure after incubating with the secondary and chemi-luminescent substrate.
Date published: 2018-11-02
Rated 5 out of 5 by from Cytoplasmic staining observed of the eIF3Cytoplasmic staining observed of the eIF3 protein in decidual cells observed via immunoperoxidase staining of formalin fixed, paraffin embedded (FFPE) human placenta tissue. -SCBT QC
Date published: 2015-05-19
Rated 4 out of 5 by from Cytoplasmic localization of the eIF3 proteinCytoplasmic localization of the eIF3 protein observed via immunofluorescence of methanol fixed Hela cells. -SCBT QC
Date published: 2015-01-09
Rated 5 out of 5 by from Strong bands at expected molecular weightStrong bands at expected molecular weight observed via Western Blot using HeLa and LADMAC whole cell lysates. -SCBT QC
Date published: 2014-12-05
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eIF3β Antibody (A-7) is rated 4.0 out of 5 by 4.
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