CD5 Antibody

SKU: orb2636673

Description

The CD5 antigen is a transmembrane glycoprotein expressed on the surface of practically all mature human T-cells (about 10% of CD4+ T-cells being CD5 negative). In immature (CD34+) T-cells, CD5 is weakly expressed, the intensity of expression increasing with maturation. CD5 is also expressed in a small subset of normal human B-cells (20% of B-cells in the peripheral blood, scattered cells in the lymph node mantle zone). The CD5+ cells are probably involved in B-T interaction and their ligand is CD72 which is expressed on all B cells. It appears that CD5+ B-cells on activation primarily produce IgM. They also produce more autoantibodies than normal CD5 negative B-cells. Thus, the CD5+ B-cell population is expanded in rheumatoid arthritis and systemic lupus erythematosus. The CD5 antibody reacts with CD5 expressed on B and T cells, and may be a useful aid for the classification of B and T-cell malignancies. This includes B-cell chronic lymphoid leukemia (B-CLL), B-cell small lymphocytic lymphoma (B-SLL), mantle cell lymphoma (MCL) and T-cell lymphoma and leukemia.

Images & Validation

• Tested Applications: IHC-P, WB
• Dilution Range: Immunohistochemistry (FFPE): 1-2ug/ml,Western blot: 1-2ug/ml
• Reactivity: Human
• Application Notes:
  Optimal dilution of the recombinant CD5 antibody should be determined by the researcher.

Key Properties

• Antibody Type: Primary Antibody
• Host: Mouse
• Clonality: Recombinant
• Isotype: Mouse IgG2a, kappa
• Clone No.: rC5/6429
• Immunogen: Recombinant full-length protein corresponding to human CD5 was used as the immunogen for the recombinant CD5 antibody.
• Purity: Protein A/G affinity
• Conjugation: Unconjugated

Storage & Handling

• Storage: Maintain refrigerated at 2-8°C for up to 2 weeks. For long term storage store at -20°C in small aliquots to prevent freeze-thaw cycles.
• Buffer/Preservatives: 0.2 mg/ml in 1X PBS with 0.1 mg/ml rAlbumin (US sourced), 0.05% sodium azide
• Expiration Date: 12 months from date of receipt.
• Hazard Information: This recombinant CD5 antibody is available for research use only.
• Disclaimer: For research use only

Western blot testing of human Jurkat cell lysate with recombinant CD5 antibody (clone rC5/6429). Observed molecular weight: 55~67 kDa depending on glycosylation level.

IHC staining of FFPE human tonsil tissue with recombinant CD5 antibody (clone rC5/6429). HIER: boil tissue sections in pH9 10mM Tris with 1mM EDTA for 20 min and allow to cool before testing.

Negative control: IHC staining of FFPE human brain tissue using recombinant CD5 antibody (clone rC5/6429) at 2 ug/ml in PBS for 30 min RT. HIER: boil tissue sections in pH9 10mM Tris with 1mM EDTA for 20 min and allow to cool before testing.

SDS-PAGE analysis of purified, BSA-free recombinant CD5 antibody (clone rC5/6429) as confirmation of integrity and purity.

Quick Database Links

UniProt

P06127