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Product Details
- Verified Reactivity
- Human, Cynomolgus, Rhesus
- Reported Reactivity
- Chimpanzee
- Antibody Type
- Monoclonal
- Host Species
- Mouse
- Immunogen
- Human peripheral T cells
- Formulation
- Phosphate-buffered solution, pH 7.2, containing 0.09% sodium azide and BSA (origin USA)
- Preparation
- The antibody was purified by affinity chromatography, and conjugated with APC/Cyanine7 under optimal conditions.
- Concentration
- ?g size: 0.2 mg/mLtest sizes: lot-specific (to obtain lot-specific concentration, please enter the lot number in our Concentration and Expiration Lookup or Certificate of Analysis online tools.
- Storage & Handling
- The antibody solution should be stored undiluted between 2°C and 8°C, and protected from prolonged exposure to light. Do not freeze.
- Application
-
FC - Quality tested
- Recommended Usage
Each lot of this antibody is quality control tested by immunofluorescent staining with flow cytometric analysis. For flow cytometric staining using the test sizes, the suggested use of this reagent is 5 ?l per million cells in 100 ?l staining volume or 5 ?l per 100 ?l of whole blood. For flow cytometric staining using the ?g size, the suggested use of this reagent is =0.5 ?g per million cells in 100 ?l volume. It is recommended that the reagent be titrated for optimal performance for each application.
- Excitation Laser
- Red Laser (633 nm)
- Application Notes
The OKT4 antibody binds to the D3 domain of CD4 and does not block HIV binding. Additional reported applications (for the relevant formats) include: immunohistochemistry of frozen sections and blocking of T cell activation. This clone was tested in-house and does not work on formalin fixed paraffin-embedded (FFPE) tissue. The Ultra-LEAF? purified antibody (Endotoxin < 0.01 EU/?g, Azide-Free, 0.2 ?m filtered) is recommended for functional assays (Cat. No. 317453 and 317454).
In a small subset of individuals, the OKT4 clone does not bind to CD4 due to polymorphisms in CD4.9- Additional Product Notes
- BioLegend is in the process of converting the name APC/Cy7 to APC/Cyanine7. The dye molecule remains the same, so you should expect the same quality and performance from our APC/Cyanine7 products. Please contact Technical Service if you have any questions.
- Application References
(PubMed link indicates BioLegend citation) -
- Knapp W, et al. 1989. Leucocyte Typing IV. Oxford University Press. New York.
- Reinherz EL, et al. 1979. Proc. Natl. Acad. Sci. 76:4061.
- Kmieciak M, et al. 2009. J. Transl. Med. 7:89. (FC) PubMed
- Cicin-Sain L, et al. 2010. J. Immunol. 184:6739. PubMed
- Rosenzweig M, et al. 2001. J. Med. Primatol. 30:36.
- Linder J, et al. 1987. Am. J. Pathol. 127:1.
- Boche D, et al. 1999. J. Neurovirol. 5:232. (IHC)
- Reinherz EL, et al. 1979. Proc. Natl. Acad. Sci. USA. 76:4061. (Immunogen)
- Lederman S, et al. 1991. Mol Immunol. 28:1171-81.
- Product Citations
-
- RRID
- AB_571946 (BioLegend Cat. No. 317417) AB_2687202 (BioLegend Cat. No. 317450) AB_571947 (BioLegend Cat. No. 317418)
Antigen Details
- Structure
- Ig superfamily, type I transmembrane glycoprotein, 55 kD
- Distribution
-
T cell subset, majority of thymocytes, monocytes/macrophages
- Function
- MHC class II co-receptor, lymphocyte adhesion, thymic differentiation, HIV receptor
- Ligand/Receptor
- MHC class II molecules, HIV gp120, IL-16
- Cell Type
- Macrophages, Monocytes, T cells, Thymocytes, Tregs
- Biology Area
- Immunology
- Molecular Family
- CD Molecules
- Antigen References
-
1. Center D, et al. 1996. Immunol. Today 17:476.
2. Gaubin M, et al. 1996. Eur. J. Clin. Chem. Clin. Biochem. 34:723. - Gene ID
- 920 View all products for this Gene ID
- UniProt
- View information about CD4 on UniProt.org
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