Date published: 2026-1-8

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14-3-3 σ Antibody (5D7): sc-100638

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Datasheets
  • 14-3-3 σ Antibody (5D7) is a mouse monoclonal IgG1 κ, cited in 30 publications, provided at 100 µg/ml
  • raised against recombinant 14-3-3 σ of human origin
  • recommended for detection of 14-3-3 σ of human origin by WB, IP, IF, IHC(P) and ELISA
  • See pan 14-3-3 (B-8): sc-133233 for 14-3-3 σ antibody conjugates, including AC, HRP, FITC, PE, Alexa Fluor® 488, 594, 647, 680 and 790.
  • m-IgG Fc BP-HRP and m-IgG1 BP-HRP are the preferred secondary detection reagents for 14-3-3 σ Antibody (5D7) for WB and IHC(P) applications. These reagents are now offered in bundles with 14-3-3 σ Antibody (5D7) (see ordering information below).

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14-3-3 σ Antibody (5D7) is a mouse monoclonal IgG1 kappa light chain antibody that detects 14-3-3 σ of human origin by western blotting (WB), immunoprecipitation (IP), immunofluorescence (IF), immunohistochemistry with paraffin-embedded sections (IHCP), and enzyme-linked immunosorbent assay (ELISA). Anti-14-3-3 σ antibody (5D7) is available in a non-conjugated form, providing flexibility for various experimental needs. 14-3-3 σ, also known as SFN, stratifin, HME1, or YWHAS, plays a crucial role in cellular signaling and regulation, particularly in cancer biology. 14-3-3 σ is predominantly expressed in stratified squamous keratinizing epithelium and functions as a secreted adaptor protein that interacts with various target proteins, including Keratin 17. 14-3-3 σ binding to Keratin 17 enhances the Akt/mTOR signaling pathway, promoting protein synthesis and cell growth, which are vital processes in tumor development and progression. 14-3-3 σ positively regulates tumor suppressor p53, influencing cell cycle checkpoints and apoptosis. This modulation of key pathways highlights 14-3-3 σ′s importance in maintaining cellular homeostasis and potential as a therapeutic target in cancer treatment. 14-3-3 σ monoclonal antibody (5D7) serves as an essential tool for researchers studying cancer biology and related fields.

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

14-3-3 σ Antibody (5D7) References:

  1. 14-3-3 sigma positively regulates p53 and suppresses tumor growth.  |  Yang, HY., et al. 2003. Mol Cell Biol. 23: 7096-107. PMID: 14517281
  2. A structural basis for 14-3-3sigma functional specificity.  |  Wilker, EW., et al. 2005. J Biol Chem. 280: 18891-8. PMID: 15731107
  3. 14-3-3sigma, a p53 regulator, suppresses tumor growth of nasopharyngeal carcinoma.  |  Yang, H., et al. 2006. Mol Cancer Ther. 5: 253-60. PMID: 16505098
  4. CpG island promoter methylation and silencing of 14-3-3sigma gene expression in LNCaP and Tramp-C1 prostate cancer cell lines is associated with methyl-CpG-binding protein MBD2.  |  Pulukuri, SM. and Rao, JS. 2006. Oncogene. 25: 4559-72. PMID: 16786000
  5. 14-3-3sigma controls mitotic translation to facilitate cytokinesis.  |  Wilker, EW., et al. 2007. Nature. 446: 329-32. PMID: 17361185
  6. 14-3-3 sigma isoform interacts with the cytoplasmic domain of the transmembrane BP180 in keratinocytes.  |  Li, Y., et al. 2007. J Cell Physiol. 212: 675-81. PMID: 17443672
  7. Methylation and intratumoural heterogeneity of 14-3-3 sigma in oral cancer.  |  Bhawal, UK., et al. 2007. Oncol Rep. 18: 817-24. PMID: 17786341
  8. Over-expression of 14-3-3sigma in budding colorectal cancer cells modulates cell migration in the presence of tenascin-C.  |  Ide, M., et al. 2007. Oncol Rep. 18: 1451-6. PMID: 17982629
  9. DNA methylation patterns of the CDH1, RARB, and SFN genes in choroid plexus tumors.  |  Losi-Guembarovski, R., et al. 2007. Cancer Genet Cytogenet. 179: 140-5. PMID: 18036402
  10. Detection of 14-3-3 sigma (σ) promoter methylation as a noninvasive biomarker using blood samples for breast cancer diagnosis.  |  Ye, M., et al. 2017. Oncotarget. 8: 9230-9242. PMID: 27999208
  11. 14-3-3σ and Its Modulators in Cancer.  |  Aljabal, G. and Yap, BK. 2020. Pharmaceuticals (Basel). 13: PMID: 33287252
  12. 14-3-3σ-NEDD4L axis promotes ubiquitination and degradation of HIF-1α in colorectal cancer.  |  Liu, S., et al. 2023. Cell Rep. 42: 112870. PMID: 37494179

Ordering Information

Product NameCatalog #UNITPriceQtyFAVORITES

14-3-3 σ Antibody (5D7)

sc-100638
100 µg/ml
$339.00

14-3-3 σ Antibody (5D7): m-IgG Fc BP-HRP Bundle

sc-539703
100 µg Ab; 10 µg BP
$361.00

14-3-3 σ Antibody (5D7): m-IgG1 BP-HRP Bundle

sc-541661
100 µg Ab; 20 µg BP
$361.00

Can sc-100638: 14-3-3 σ (5D7) monoclonal antibody be used to stain formalin-fixed, paraffin-embedded (FFPE) tissue sections?

Asked by: Cweed
Thank you for your question. Yes, sc-100638: 14-3-3 σ (5D7) is recommended 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: 2017-03-24
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Rated 4 out of 5 by from Good antibody for WBWorked well for western blotting with MCF7 cell line
Date published: 2020-07-01
Rated 5 out of 5 by from Great Choice for WBcrisp strong and clean band in Western Blot applications. Great choice for detecting 14-3-3 sigma in WB.
Date published: 2017-01-26
Rated 5 out of 5 by from WB: works well with AWB: works well with A-431 whole cell lysate -SCBT QC
Date published: 2015-04-01
Rated 5 out of 5 by from Published IF/IHC data using 5D7 on human SW480Published IF/IHC data using 5D7 on human SW480-ADH and HT29 cells. -SCBT Publication Review
Date published: 2015-02-27
Rated 4 out of 5 by from Clean immunohistochemical stain on paraffinClean immunohistochemical stain on paraffin embedded human tumor tissue sections. -SCBT Publication Review
Date published: 2015-02-26
Rated 5 out of 5 by from Superb immunoperoxidase nuclear and cytoplasmicSuperb immunoperoxidase nuclear and cytoplasmic staining in formalin-fixed, paraffin-embedded human uterine cervix tissue. -SCBT QC
Date published: 2015-02-20
Rated 5 out of 5 by from CleanClean, strong band observed in Western blot analysis of 14-3-3 expression in HeLa nuclear extract. -SCBT QC
Date published: 2015-01-26
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14-3-3 σ Antibody (5D7) is rated 4.7 out of 5 by 7.
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