Date published: 2026-4-25

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CD28 Antibody (CD28.1): sc-19654

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Datasheets
  • CD28 Antibody (CD28.1) is a mouse monoclonal IgG1 κ, cited in 1 publications, provided at 200 µg/ml
  • raised against human CD28 Ig fusion protein and HPB-MLT human tumor cells
  • recommended for detection of CD28 of human origin by WB, IP, IF and FCM
  • available conjugated to either phycoerythrin or FITC for IF, IHC(P) and FCM
  • m-IgG Fc BP-HRP and m-IgG1 BP-HRP are the preferred secondary detection reagents for CD28 Antibody (CD28.1) for WB applications. These reagents are now offered in bundles with CD28 Antibody (CD28.1) (see ordering information below).
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CD28 Antibody (CD28.1) is a mouse monoclonal IgG1 antibody that detects CD28 in human samples through applications such as western blotting (WB), immunoprecipitation (IP), immunofluorescence (IF), and flow cytometry (FCM). CD28 plays a crucial role in T cell activation and proliferation by serving as a primary co-stimulatory receptor on T cells, which is essential for effective immune responses. Upon engagement with CD80 and CD86 ligands expressed on antigen-presenting cells, anti-CD28 antibody (CD28.1) enhances T cell activation and promotes cytokine production, thereby facilitating immune response against pathogens. CD28 signaling supports T cell survival and proliferation while helping T cell differentiation into effector and memory cells. The interaction of CD28 with ligands is critical for maintaining immune tolerance and preventing autoimmunity, making CD28 (CD28.1) monoclonal antibody a significant target for therapeutic interventions in various immune-related diseases. Anti-CD28 antibody (CD28.1) serves as an invaluable tool for researchers studying T cell biology and mechanisms underlying immune responses.

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

CD28 Antibody (CD28.1) References:

  1. CD8+CD28- T cells: certainties and uncertainties of a prevalent human T-cell subset.  |  Arosa, FA. 2002. Immunol Cell Biol. 80: 1-13. PMID: 11869357
  2. CD28 and CTLA-4 coreceptor expression and signal transduction.  |  Rudd, CE., et al. 2009. Immunol Rev. 229: 12-26. PMID: 19426212
  3. CD3(+)CD8(+)CD28(-) T Lymphocytes in Patients with Lupus Nephritis.  |  Żabińska, M., et al. 2016. J Immunol Res. 2016: 1058165. PMID: 27446964
  4. CD8+CD28+ T cells might mediate injury of cardiomyocytes in acute myocardial infarction.  |  Zhang, L., et al. 2018. Mol Immunol. 101: 74-79. PMID: 29886399
  5. CD8+CD28- T cells: key cytotoxic players impacting disease pathogenesis in chronic HBV infection.  |  Nandi, M., et al. 2019. Clin Sci (Lond). 133: 1917-1934. PMID: 31477625
  6. Structural characterization of a dimerization interface in the CD28 transmembrane domain.  |  Wu, H., et al. 2022. Structure. 30: 803-812.e5. PMID: 35397202
  7. High proportion of circulating CD8 + CD28- senescent T cells is an independent predictor of distant metastasis in nasopharyngeal canrcinoma after radiotherapy.  |  Xu, X., et al. 2023. J Transl Med. 21: 64. PMID: 36721233
  8. CD28-signaling can be partially compensated in CD28-knockout mice but is essential for virus elimination in a murine model of multiple sclerosis.  |  Hülskötter, K., et al. 2023. Front Immunol. 14: 1105432. PMID: 37090733
  9. Transcriptional reprogramming via signaling domains of CD2, CD28, and 4-1BB.  |  De Sousa Linhares, A., et al. 2024. iScience. 27: 109267. PMID: 38455974
  10. CD28 signals through acidic sphingomyelinase.  |  Boucher, LM., et al. 1995. J Exp Med. 181: 2059-68. PMID: 7759998

Ordering Information

Product NameCatalog #UNITPriceQtyFAVORITES

CD28 Antibody (CD28.1)

sc-19654
200 µg/ml
$322.00

CD28 Antibody (CD28.1): m-IgG Fc BP-HRP Bundle

sc-538906
200 µg Ab; 10 µg BP
$361.00

CD28 Antibody (CD28.1): m-IgG1 BP-HRP Bundle

sc-541139
200 µg Ab; 20 µg BP
$361.00

CD28 Antibody (CD28.1) FITC

sc-19654 FITC
200 µg/ml
$336.00

CD28 Antibody (CD28.1) PE

sc-19654 PE
200 µg/ml
$349.00

How can CD28 (CD28.1): sc-19654 mouse monoclonal antibody be used for double or triple staining, if the other primary antibodies are also raised in mouse?

Asked by: Randy McDonald
In this case, we recommend using a directly conjugated mouse monoclonal primary antibody. This antibody is available conjugated to phycoerythrin (sc-19654 PE) or fluoroscein (sc-19654 FITC).
Answered by: Technical Support
Date published: 2017-03-01
  • y_2026, m_4, d_24, h_10CST
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Rated 4 out of 5 by from Good band seen in WB using Jurkat whole cellGood band seen in WB using Jurkat whole cell lysate. -SCBT QC
Date published: 2015-04-10
Rated 4 out of 5 by from Produced wonderful FCM data for CCRFProduced wonderful FCM data for CCRF-CEM cells. -SCBT QC
Date published: 2013-11-01
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CD28 Antibody (CD28.1) is rated 4.0 out of 5 by 2.
  • y_2026, m_4, d_24, h_10
  • bvseo_bulk, prod_bvrr, vn_bulk_3.0.43
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  • REVIEWS, PRODUCT