CyFlow™ CD4 FITC

CD4 is a single chain transmembrane glycoprotein of immunoglobulin supergene family. In its extracellular region there are 4 immunoglobulin-like domains (1 Ig-like V-type and 3 Ig-like C2-type). The intracellular region of CD4 associates with p56Lck, a Src-like protein tyrosine kinase. It was described that CD4 segregates into specific detergent-resistant T-cell membrane microdomains. CD4 binds to MHC class II molecules (by CDR2-like region in CD4 domain 1), HIV envelope protein gp120 (by CDR2-like region in CD4 domain 1) and other ligands, such as IL-16 (by to CD4 domain 3) or L-selectin. CD4 is a co-receptor involved in immune response (co-receptor activity in binding to MHC class II molecules) and HIV infection. CD4 regulates T-cell activation, T/B-cell adhesion, T-cell diferentiation, T-cell selection and signal transduction. Defects in antigen presentation (MHC class II) cause dysfunction of CD4+ T-cells and their almost complete absence in patients blood, tissue and organs (SCID immunodeficiency).

• Clonality: Monoclonal
• Host: Rat
• Reactivity: Mouse
• Antigen: CD4
• Clone: GK1.5
• Conjugate: FITC
• Isotype: IgG2b

• Quantity: 0.1 mg
• Storage: Avoid prolonged exposure to light. Store in the dark at 2-8°C. Do not freeze.
• Buffer: The reagent is provided in phosphate buffered saline (PBS) solution, pH ≈7.4, containing 0.1% (w/v) sodium azide.

• Flow Cytometry (FC)
• Functional Studies (Func)
• Immunocytochemistry (ICC)
• Immunohistochemistry (Formalin-Fixed Sections) (IHC (F))
• Immunoprecipitation (IP)