Date published: 2026-3-19

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CD3 Antibody (5B2): sc-70626

5.0(2)
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Datasheets
  • CD3 Antibody (5B2) is a mouse monoclonal IgG3, cited in 3 publications, provided at 100 µg/ml
  • raised against human peripheral lymphocytes
  • recommended for detection of CD3 of mouse, rat and human origin by IP, IF and FCM
  • available conjugated to FITC for IF, IHC(P) and FCM
  • See CD3 (PC3/188A): sc-20047 for CD3 antibody conjugates, including AC, HRP, FITC, PE, Alexa Fluor® 488, 594, 647, 680 and 790.
  • At present, we have not yet completed the identification of the preferred secondary detection reagent(s) for CD3 Antibody (5B2). This work is in progress.
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CD3 Antibody (5B2) is a mouse monoclonal IgG3 antibody engineered to target the CD3 molecule, a fundamental component of the T cell receptor complex also known as the TCR-CD3 complex or cluster of differentiation 3. CD3 plays an essential role in T cell activation and signal transduction, comprising a multisubunit structure that includes the CD3γ, CD3δ, CD3ε, and CD3ζ chains. This complex forms three distinct dimers, γε, δε, and ζζ or ζη, which are crucial for transmitting extracellular antigen recognition into intracellular signaling pathways. The structural integrity of CD3 is vital because it contains immunoreceptor tyrosine-based activation motifs (ITAMs) that facilitate the recruitment and activation of protein kinases such as ZAP-70 and Syk, thereby initiating downstream immune responses. Anti-CD3 antibody (5B2) effectively binds to CD3 proteins from mouse, rat, and human origins, making it versatile for various applications including immunoprecipitation (IP), immunofluorescence (IF), and flow cytometry (FCM). Raised against human peripheral lymphocytes, CD3 (5B2) antibody is instrumental in studying T cell functions and interactions. CD3 monoclonal antibody (5B2) recognizes conserved regions of the CD3 complex, ensuring reliable performance in both basic research and clinical settings. Anti-CD3 antibody (5B2) enables detailed analysis of T cell receptor dynamics and immune responses, supporting advancements in immunological studies and therapeutic developments.

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

Ordering Information

Product NameCatalog #UNITPriceQtyFAVORITES

CD3 Antibody (5B2)

sc-70626
100 µg/ml
$322.00

CD3 Antibody (5B2) FITC

sc-70626 FITC
100 tests in 2 ml
$336.00

Should I permeabilize the cells if I want use the 5B2 for FACS analysis?

Asked by: Elenarb000
Thank you for your question. Yes, we recommend fixing and permeabilizing when using this mouse monoclonal antibody, CD3 (5B2): sc-70626, for flow cytometry (FCM) for FACS applications. A link to our recommended protocol for FCM is provided below. https://www.scbt.com/scbt/resources/protocols/flow-cytometry
Answered by: Technical Support
Date published: 2017-09-20

I am using CD3 (5B2): sc-70626 monoclonal antibody for immunoprecipitation, how much antibody should I use?

Asked by: DefinitelyNotMatt
Thank you for your question. We recommend using 1–10 µl (i.e., 0.2–2 µg) of antibody with 1 ml of cell lysate. However, optimal antibody concentration should be determined by titration. Please find our full immunoprecipitation protocol here: https://www.scbt.com/scbt/resources/protocols/immunoprecipitation-western-blots
Answered by: Technical Support
Date published: 2017-04-05
  • y_2026, m_3, d_16, h_6CST
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Rated 5 out of 5 by from IF publication with rat C6 cellsIF publication with rat C6 cells. -SCBT Publication Review
Date published: 2015-05-01
Rated 5 out of 5 by from CD3 (5B2) was used successfully in mouse D1 and D1CD3 (5B2) was used successfully in mouse D1 and D1-CD4 T cells for immunoprecipitation. -SCBT Publication Review
Date published: 2013-04-25
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CD3 Antibody (5B2) is rated 5.0 out of 5 by 2.
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