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CD3ε Antibody
SPA-01932
| Size | Price |
| 100 µL | Online Inquiry |
| More Options | Online Inquiry |
| Target Information | |
|---|---|
| Target Name | CD3 |
| Gene Abbr. | CD3E |
| Gene ID | 916 |
| Full Name | CD3e molecule |
| Alias | IMD18, T3E, TCRE |
| Introduction | When T cells encounter antigens via the T cell receptor (TCR), information about the quantity and quality of antigens is relayed to the intracellular signal transduction machinery. This activation process depends mainly on CD3 (Cluster of Differentiation 3), a multiunit protein complex that directly associates with the TCR. CD3 is composed of four polypeptides: ζ, γ, ε and δ. Each of these polypeptides contains at least one immunoreceptor tyrosine-based activation motif (ITAM). Engagement of TCR complex with foreign antigens induces tyrosine phosphorylation in the ITAM motifs and phosphorylated ITAMs function as docking sites for signaling molecules such as ZAP-70 and p85 subunit of PI-3 kinase. TCR ligation also induces a conformational change in CD3ε, such that a proline region is exposed and then associates with the adaptor protein Nck.The CD3ζ invariant chain is a type-I transmembrane protein that exists in the TCR signaling complex as a disulfide-linked homodimer. |
| Product Details | |
|---|---|
| Host | Mouse |
| Clonality | Monoclonal |
| Clone No. | APA1/1 |
| Isotype | IgG1 |
| Immunogen | Purified human CD3 proteins isolated from thymus. |
| Usage | |
|---|---|
| Application | WB, FC, IF, IHC, IP |
| Dilutions | Western Blot (1:1000); Flow Cytometry (1:10-1:1000); Immunofluorescence (1:10-1:500); Immunohistochemistry (1:10-1:500); Immunoprecipitation (1:50) |
| Reactivity | Human, Mouse |
| Specificity | The mouse monoclonal antibody APA1/1 recognizes an activation-dependent intracellular epitope of CD3 epsilon. Exposure of the epitope precedes CD3 phosphorylation and recruitment and activation of ZAP70, which initiates the signaling cascade produced by T-cell activation. APA1/1 provides the earliest known marker for TCR-mediated T cell activation. |
| Storage & Handling | |
|---|---|
| Storage Buffer | PBS (pH 7.4). |
| Preservative | 15 mM Sodium Azide |
| Storage Temp. | Store at 4 °C. |
| Handling | Do not freeze. |
For research use only. Not intended for any clinical use. No products from CD BioSciences may be resold, modified for resale or used to manufacture commercial products without prior written approval from CD BioSciences.