Recombinant CD5 Antibody

SKU: orb2635447

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
• Dilution Range: Immunohistochemistry (FFPE): 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: Rabbit
• Clonality: Recombinant
• Isotype: Rabbit IgG
• Clone No.: C5/4561R
• Immunogen: A portion of amino acids 450-495 from the intracellular region of human CD5 was used as the immunogen for the recombinant CD5 antibody.
• Purification: 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: 1 mg/ml in 1X PBS; rAlbumin free, sodium azide free
• Expiration Date: 12 months from date of receipt.
• Disclaimer: For research use only

IHC staining of FFPE human tonsil tissue with recombinant CD5 antibody (clone C5/4516R) at 2 ug/ml in PBS for 30 min RT. Strong surface staining observed. Negative control inset: PBS used instead of primary antibody to control for secondary Ab binding. HIER: boil tissue sections in pH9 10mM Tris with 1mM EDTA for 20 min and allow to cool before testing.

IHC staining of FFPE human lymph node tissue with recombinant CD5 antibody (clone C5/4561R). 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 with recombinant CD5 antibody (clone C5/4561R) 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.

Quick Database Links

UniProt

P06127