Human CD3 delta/CD3d Antibody

Catalog # Availability Size / Price Qty
Detection of Human CD3 delta/CD3d by Western Blot.
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Product Details
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Human CD3 delta/CD3d Antibody Summary

Species Reactivity
Detects human CD3 delta/CD3d in ELISA and Western blots.
Monoclonal Mouse IgG2B Clone # 1033614
Protein A or G purified from hybridoma culture supernatant
Human embryonic kidney cell HEK293-derived human CD3 delta/CD3d
Accession # P04234
Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied either lyophilized or as a 0.2 µm filtered solution in PBS.


Recommended Concentration
Western Blot
2 µg/mL
Jurkat human acute T cell leukemia cell line
5-25 µg/mL
Immersion fixed paraffin-embedded sections of human thymu

Please Note: Optimal dilutions should be determined by each laboratory for each application. General Protocols are available in the Technical Information section on our website.

Scientific Data

Western Blot View Larger

Detection of Human CD3 delta/CD3d by Western Blot. Western blot shows lysates of Jurkat human acute T cell leukemia cell line. PVDF membrane was probed with 2 µg/mL of Mouse Anti-Human CD3 delta/CD3d Monoclonal Antibody (Catalog # MAB10672) followed by HRP-conjugated Anti-Mouse IgG Secondary Antibody (HAF018). A specific band was detected for CD3 delta/CD3d at approximately 23 kDa (as indicated). This experiment was conducted under reducing conditions and using Western Blot Buffer Group 1.

Immunohistochemistry View Larger

CD3 delta/CD3d in Human Thymus. CD3 delta/CD3d was detected in immersion fixed paraffin-embedded sections of human thymus using Mouse Anti-Human CD3 delta/CD3d Monoclonal Antibody (Catalog # MAB10672) at 5 µg/mL for 1 hour at room temperature followed by incubation with the Anti-Mouse IgG VisUCyte™ HRP Polymer Antibody (VC001). Before incubation with the primary antibody, tissue was subjected to heat-induced epitope retrieval using Antigen Retrieval Reagent-Basic (CTS013). Tissue was stained using DAB (brown) and counterstained with hematoxylin (blue). Specific staining was localized to cell surface and cytoplasm in lymphocytes. Staining was performed using our protocol for IHC Staining with VisUCyte HRP Polymer Detection Reagents.

Reconstitution Calculator

Reconstitution Calculator

The reconstitution calculator allows you to quickly calculate the volume of a reagent to reconstitute your vial. Simply enter the mass of reagent and the target concentration and the calculator will determine the rest.


Preparation and Storage

Reconstitute at 0.5 mg/mL in sterile PBS.
Reconstitution Buffer Available
Reconstitution Buffer 1 (PBS)
Catalog #
Size / Price
The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below. *Small pack size (SP) is shipped with polar packs. Upon receipt, store it immediately at -20 to -70 °C
Stability & Storage
Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
  • 12 months from date of receipt, -20 to -70 °C as supplied.
  • 1 month, 2 to 8 °C under sterile conditions after reconstitution.
  • 6 months, -20 to -70 °C under sterile conditions after reconstitution.

Background: CD3 delta/CD3d

CD3d, also known as CD3 delta and T3D, is a single-pass type I membrane protein. CD3 delta/CD3d is part of the T-cell receptor/CD3 complex (TCR/CD3 complex) and is involved in T-cell development and signal transduction (1). The encoded membrane protein represents the delta subunit of the CD3 complex, and along with four other CD3 subunits, binds either TCR alpha/beta or TCR gamma/delta to form the TCR/CD3 complex on the surface of T cells (2). CD3 delta/CD3d contains an 84 amino acid extracellular domain, a 21 amino acid transmembrane domain, and a 45 amino acid cytoplasmic domain. Human CD3 delta/CD3d shares 89%, 61%, and 57% sequence identity in its extracellular domain with its cynomolgus monkey, rat, and mouse homologs, respectively. CD3 delta/CD3d, like other subunit members CD3G and CD3E of the TCR-CD3 complex, contains an extracellular Ig domain and a single immunoreceptor tyrosine-based activation motif (3, 4). Defects in CD3 delta/CD3d cause severe combined immunodeficiency autosomal recessive T-cell-negative/B-cell-positive/NK-cell-positive (T-/B+/NK+ SCID) which is a genetically and clinically heterogeneous group of rare congenital disorders characterized by impairment of both humoral and cell-mediated immunity, leukopenia, and low or absent antibody levels (5, 6).

  1. Gil, J. et al. (2011) J. Clin. Invest. 121:3872.
  2. Carson, G.R. et al. (1991) J. Biol. Chem. 266:7883.
  3. Birnbaum, M.E. et al. (2014). Proc. Natl. Acad. Sci. USA. 111:17576.
  4. Wucherpfennig, K. et al. (2010). Cold Spring Harb Perspect. Biol. 2:a005140.
  5. Kim, S.T. et al. (2010) J. Immunol. 185:2951.
  6. Holst, J. et al. (2008) Nat. Immunol. 9:658.
Long Name
CD3 delta
Entrez Gene IDs
915 (Human); 12500 (Mouse); 25710 (Rat); 102133701 (Cynomolgus Monkey)
Alternate Names
CD3 antigen, delta subunit; CD3 delta; CD3d antigen; CD3d antigen, delta polypeptide (TiT3 complex); CD3d molecule, delta (CD3-TCR complex); CD3D; CD3-DELTA; T3DOKT3, delta chain; T-cell receptor T3 delta chain; T-cell surface glycoprotein CD3 delta chain

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