WB result of CD3 epsilon Mouse mAb
Primary antibody: CD3 epsilon Mouse mAb at 1/1000 dilution
Lane 1: Daudi whole cell lysate 20 µg
Lane 2: Jurkat whole cell lysate 20 µg
Negative control: Daudi whole cell lysate
Secondary antibody: Goat Anti-Mouse IgG, (H+L), HRP conjugated at 1/10000 dilution
Predicted MW: 23 kDa
Observed MW: 23 kDa
Product Details
Product Details
Product Specification
Host | Mouse |
Antigen | CD3 EPSILON |
Synonyms | T-cell surface glycoprotein CD3 epsilon chain, T-cell surface antigen T3/Leu-4 epsilon chain, CD3e, T3E |
Immunogen | Recombinant Protein |
Location | Cell membrane |
Accession | P07766 |
Clone Number | SDT-570-36 |
Antibody Type | Mouse mAb |
Isotype | IgG1,k |
Application | WB, IHC-P, ICC, IF |
Reactivity | Hu |
Purification | Protein G |
Concentration | Lot specific* (generally 0.2 to 2 mg/ml)* |
Conjugation | Unconjugated |
Physical Appearance | Liquid |
Storage Buffer | PBS, 40% Glycerol, 0.05%BSA, 0.03% Proclin 300 |
Stability & Storage | 12 months from date of receipt / reconstitution, -20°C as supplied |
Dilution
application | dilution | species |
WB | 1:1000 | null |
IHC | 1:500 | null |
ICC | 1:500 | null |
IF | 1:200 | null |
Background
CD3 (cluster of differentiation 3) is a protein complex and T cell co-receptor that is involved in activating both the cytotoxic T cell (CD8+ naive T cells) and T helper cells (CD4+ naive T cells). It is composed of four distinct chains. In mammals, the complex contains a CD3γ chain, a CD3δ chain, and two CD3ε chains. These chains associate with the T-cell receptor (TCR) and the CD3-zeta (ζ-chain) to generate an activation signal in T lymphocytes. The TCR, CD3-zeta, and the other CD3 molecules together constitute the TCR complex. The CD3–T cell receptor (TCR) complex plays a central role in the T-cell-mediated immunoresponse as it is involved in the recognition of antigens and subsequent signal transduction and activation of immunocompetent T lymphocytes. Because CD3 is required for T cell activation, drugs (often monoclonal antibodies) that target it are being investigated as immunosuppressant therapies (e.g., otelixizumab, teplizumab) for type 1 diabetes and other autoimmune diseases.
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Western Blot
Immunohistochemistry
IHC shows positive staining in paraffin-embedded human tonsil. Anti-CD3 epsilon antibody was used at 1/500 dilution, followed by a HRP Polymer for Mouse & Rabbit IgG (ready to use). Counterstained with hematoxylin. Heat mediated antigen retrieval with Tris/EDTA buffer pH9.0 was performed before commencing with IHC staining protocol.
IHC shows positive staining in paraffin-embedded human spleen. Anti-CD3 epsilon antibody was used at 1/500 dilution, followed by a HRP Polymer for Mouse & Rabbit IgG (ready to use). Counterstained with hematoxylin. Heat mediated antigen retrieval with Tris/EDTA buffer pH9.0 was performed before commencing with IHC staining protocol.
IHC shows positive staining in paraffin-embedded human stomach. Anti-CD3 epsilon antibody was used at 1/500 dilution, followed by a HRP Polymer for Mouse & Rabbit IgG (ready to use). Counterstained with hematoxylin. Heat mediated antigen retrieval with Tris/EDTA buffer pH9.0 was performed before commencing with IHC staining protocol.
IHC shows positive staining in paraffin-embedded human diffuse large B-cell lymphoma. Anti-CD3 epsilon antibody was used at 1/500 dilution, followed by a HRP Polymer for Mouse & Rabbit IgG (ready to use). Counterstained with hematoxylin. Heat mediated antigen retrieval with Tris/EDTA buffer pH9.0 was performed before commencing with IHC staining protocol.
IHC shows positive staining in paraffin-embedded human anaplastic large cell lymphoma. Anti-CD3 epsilon antibody was used at 1/500 dilution, followed by a HRP Polymer for Mouse & Rabbit IgG (ready to use). Counterstained with hematoxylin. Heat mediated antigen retrieval with Tris/EDTA buffer pH9.0 was performed before commencing with IHC staining protocol.
IHC shows positive staining in paraffin-embedded human non-Hodgkin T-cell lymphoma. Anti-CD3 epsilon antibody was used at 1/500 dilution, followed by a HRP Polymer for Mouse & Rabbit IgG (ready to use). Counterstained with hematoxylin. Heat mediated antigen retrieval with Tris/EDTA buffer pH9.0 was performed before commencing with IHC staining protocol.
IHC shows positive staining in paraffin-embedded human cervical squamous cell carcinoma. Anti-CD3 epsilon antibody was used at 1/500 dilution, followed by a HRP Polymer for Mouse & Rabbit IgG (ready to use). Counterstained with hematoxylin. Heat mediated antigen retrieval with Tris/EDTA buffer pH9.0 was performed before commencing with IHC staining protocol.
IHC shows positive staining in paraffin-embedded human lung cancer. Anti-CD3 epsilon antibody was used at 1/500 dilution, followed by a HRP Polymer for Mouse & Rabbit IgG (ready to use). Counterstained with hematoxylin. Heat mediated antigen retrieval with Tris/EDTA buffer pH9.0 was performed before commencing with IHC staining protocol.
Immunocytochemistry
ICC shows positive staining in Jurkat cells. Anti-CD3 epsilon antibody was used at 1/500 dilution (Green) and incubated overnight at 4°C. Goat polyclonal Antibody to Mouse IgG - H&L (Alexa Fluor® 488) was used as secondary antibody at 1/1000 dilution. The cells were fixed with 100% ice-cold methanol and permeabilized with 0.1% PBS-Triton X-100. Nuclei were counterstained with DAPI (Blue).
Negative control: ICC shows negative staining in Daudi cells. Anti-CD3 epsilon antibody was used at 1/500 dilution and incubated overnight at 4°C. Goat polyclonal Antibody to Mouse IgG - H&L (Alexa Fluor® 488) was used as secondary antibody at 1/1000 dilution. The cells were fixed with 100% ice-cold methanol and permeabilized with 0.1% PBS-Triton X-100. Nuclei were counterstained with DAPI (Blue).
Immunofluorescence

IF shows positive staining in paraffin-embedded human tonsil. Anti-CD3 epsilon antibody was used at 1/200 dilution (Red) and incubated overnight at 4°C. Goat polyclonal Antibody to Mouse IgG - H&L (Alexa Fluor® 594) was used as secondary antibody at 1/500 dilution. Counterstained with DAPI (Blue). Heat mediated antigen retrieval with EDTA buffer pH9.0 was performed before commencing with IF staining protocol.

IF shows positive staining in paraffin-embedded human spleen. Anti-CD3 epsilon antibody was used at 1/200 dilution (Red) and incubated overnight at 4°C. Goat polyclonal Antibody to Mouse IgG - H&L (Alexa Fluor® 594) was used as secondary antibody at 1/500 dilution. Counterstained with DAPI (Blue). Heat mediated antigen retrieval with EDTA buffer pH9.0 was performed before commencing with IF staining protocol.

