FITC anti-human CD4 Antibody
Catalog# / Size ： XG-AB2002（25T/50T/100T）
Description
Species Reactivity | Human |
Clone | 1B7 |
Other Names | T4 |
Isotype | Mouse IgG1, κ |
Description | CD4 is a co-receptor that assists the T cell receptor (TCR) in communicating with an antigen-presenting cell. Using its intracellular domain, CD4 amplifies the signal generated by the TCR by recruiting an enzyme, the tyrosine kinase Lck, which is essential for activating many molecular components of the signaling cascade of an activated T cell. Various types of T helper cells are thereby produced. CD4 also interacts directly with MHC class II molecules on the surface of the antigen-presenting cell using its extracellular domain. The extracellular domain adopts an immunoglobulin-like beta-sandwich with seven strands in 2 beta sheets, in a Greek key topology. |
Product Details
Antibody Type | Monoclonal |
Host Species | Mouse |
Immunogen | Human CD4 Recombinant Protein |
Formulation | Antibodies are supplied in buffer containing stabilizer and 0.05% sodium azide |
Preparation | The antibody was purified by affinity chromatography, and conjugated with FITC under optimal conditions. |
Storage & Handling | Store protected from light at 2-8°C. Do not freeze. The expiration date is indicated on the vial label. |
Application | FC - Quality tested |
Recommended Usage | 1ug/T |
Excitation Laser | Blue Laser (488 nm) |
LWB Cell Preparation | 1. For each patient sample, label three tubes A, B, and C. Also label each tube with the sample identification number. 2. Place 50 µL PBS reagent into Tube A, Mouse IgG1 FITC Control reagent into Tube B, and 1ug of the CD4-FITC reagent into Tube C. 3. For each sample tube, use a fresh micropipettor tip and carefully add 50 µL of human Peripheral blood into the bottom of each of the three labeled tubes. All tubes refill to 100ul. 4. Vortex thoroughly at low speed for 3 seconds and incubate for 15minutes at room temperature (20°C–25°C). Repeat this step again. NOTE Protect samples from direct light during this incubation procedure and exercise care to prevent blood from running down the side of the tube. If whole blood remains on the side of the tube, it will not be stained with the reagent. 5. Add 250uL of room temperature (20°C–25°C) lysing solution to each tube. Immediately vortex thoroughly at low speed for 3 seconds and incubate for 10– 12 minutes at room temperature (20°C–25°C) in the dark. Do not exceed 12 minutes. 6. Immediately after incubation, add 1 mL of PBS with 1% FBS to each tube. Centrifuge tubes at 1500rpm for 5 minutes at room temperature (20°C–25°C). 7. Aspirate the supernatant leaving approximately 50 µL of residual fluid in the tube to avoid disturbing the pellet. 8. Repeat 6,7steps again. 9. Vortex thoroughly at low speed to resuspend the cell pellet in the residual fluid and then add 0.3 mL of PBS to each tube. Vortex thoroughly at low speed for 3 seconds. Make sure the cells are well mixed with the fixing solution. 10. The cells are now ready to be analyzed on the flow cytometer. Cap or cover the prepared tubes and store at 2°C– 8°C in the dark until flow cytometric analysis. NOTE Analyze the fixed cells within 2 hours after staining.Over 2 hours add 0.3 mLof PBS with 1% paraformaldehyde to each tube. |
Data
Flow Cytometry | |
Beckman对照
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Human peripheral blood lymphocytes stained with CD4(1B7) FITC | |
For research use only. Not for diagnostic use. Not for resale. Suzhou Bright Scistar Biotech Co. Ltd will not be held responsible for patent infringement or other violations that may occur with the use of our products.
