CD5 Antibody (rC5/6976)

Formalin-fixed, paraffin-embedded human tonsil stained with CD5 antibody (rC5/6976). HIER: Tris/EDTA, pH9.0, 45min. Secondary: HRP-polymer, 30min. DAB, 5min.

Formalin-fixed, paraffin-embedded human tonsil stained with CD5 antibody (rC5/6976). Inset: PBS instead of primary antibody; secondary only negative control.

• Reactivity: Hu
• Applications: IHC
• Clone: rC5/6976
• Clonality: Monoclonal
• Host: Mouse
• Conjugate: Unconjugated
• Concentration: 0.2 mg/ml

CD5 Antibody (rC5/6976) Summary

• Description: Positive Controls: 293T, Ramos, or MOLT-4 cells. Human tonsil or lymph node.
  
  Antibody with azide - store at 2 to 8C. Antibody without azide - store at -20 to -80C. Non-hazardous. No MSDS required.
• Additional Information: Recombinant Monoclonal Antibody
• Immunogen: Recombinant human protein fragment corresponding to CD5 extracellular domain
• Localization: Cell surface
• Isotype: IgG1 Kappa
• Clonality: Monoclonal
• Host: Mouse
• Gene: CD5
• Purity: Protein A or G purified

Applications/Dilutions

• Dilutions:
  • Immunohistochemistry-Paraffin 1-2 ug/ml
• Application Notes: Immunohistochemistry (Formalin-fixed): 1-2ug/ml for 30 minutes. at RT. Staining of formalin-fixed tissues requires heating tissue sections in 10mM Tris with 1mM EDTA, pH 9.0, for 45 min at 95C followed by cooling at RT for 20 minutes.
  
  Optimal dilution for a specific application should be determined.

Packaging, Storage & Formulations

• Storage: Store at 4C. Do not freeze.
• Buffer: 10mM PBS with 0.05% BSA
• Preservative: 0.05% Sodium Azide
• Concentration: 0.2 mg/ml
• Purity: Protein A or G purified

Alternate Names for CD5 Antibody (rC5/6976)

• CD5 antigen (p56-62)
• CD5 antigen
• CD5 molecule
• CD5
• LEU1T-cell surface glycoprotein CD5
• Lymphocyte antigen T1/Leu-1
• T1

Background

In humans, CD5 is a 55kDa T lymphocyte single chain transmembrane glycoprotein. It is present on all mature T lymphocytes, on most thymocytes and on many T cell leukemias and lymphomas. It reacts with a subpopulation of activated B cells. CD5/Lyt1 antigen is a monomeric type I transmembrane glycoprotein expressed on thymocytes, T lymphocytes, and a subset of B lymphocytes, but not on natural killer (NK) cells. It has been identified as the major ligand of the B cell antigen CD72. The frequency of CD5+ B cells exhibits strain dependent variation, and the phenotypic, anatomical, functional, developmental, and pathological characteristics of the CD5+ B cells suggest that they may represent a distinct lineage, known as B1 cells. Binding of CD5 on the T cell surface can augment alloantigen or mitogen induced lymphocyte proliferation and induces increased cytosolic free calcium, IL2 secretion, and IL2R expression. It has been proposed that CD5 negatively regulates signal transduction mediated by the T cell and B cell receptors.

Limitations

This product is for research use only and is not approved for use in humans or in clinical diagnosis. Primary Antibodies are guaranteed for 1 year from date of receipt.

Bioinformatics

• Gene Symbol: CD5