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PerCP/Cyanine5.5 anti-human CD4 Antibody

Pricing & Availability
Clone
OKT4 (See other available formats)
Regulatory Status
RUO
Workshop
HCDM listed
Other Names
T4
Isotype
Mouse IgG2b, κ
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Product Citations
publications
OKT4_PerCPCyanine55_CD4_Antibody_120518
Human peripheral blood lymphocytes were stained with CD4 (clone OKT4) PerCP/Cyanine5.5 (filled histogram) or Mouse IgG2b, κ PerCP/Cyanine5.5 isotype control (open histogram).
  • OKT4_PerCPCyanine55_CD4_Antibody_120518
    Human peripheral blood lymphocytes were stained with CD4 (clone OKT4) PerCP/Cyanine5.5 (filled histogram) or Mouse IgG2b, κ PerCP/Cyanine5.5 isotype control (open histogram).
Compare all formats See PerCP/Cyanine5.5 spectral data
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317427 25 tests 81€
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317428 100 tests 184€
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Description

CD4, also known as T4, is a 55 kD single-chain type I transmembrane glycoprotein expressed on most thymocytes, a subset of T cells, and monocytes/macrophages. CD4, a member of the Ig superfamily, recognizes antigens associated with MHC class II molecules and participates in cell-cell interactions, thymic differentiation, and signal transduction. CD4 acts as a primary receptor for HIV, binding to HIV gp120. CD4 has also been shown to interact with IL-16. 

Product Details
Technical data sheet

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 PerCP/Cyanine5.5 under optimal conditions.
Concentration
Lot-specific (to obtain lot-specific concentration and expiration, please enter the lot number in our Certificate of Analysis online tool.)
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, the suggested use of this reagent is 5 µl per million cells in 100 µl staining volume or 5 µl per 100 µl of whole blood.

* PerCP/Cyanine5.5 has a maximum absorption of 482 nm and a maximum emission of 690 nm.

Excitation Laser
Blue Laser (488 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/µg, Azide-Free, 0.2 µm 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

Application References

(PubMed link indicates BioLegend citation)
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Product Citations
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RRID
AB_1186124 (BioLegend Cat. No. 317427)
AB_1186124 (BioLegend Cat. No. 317428)

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

Related FAQs

I am unable to see expression of T cell markers such as CD3 and CD4 post activation.
TCR-CD3 complexes on the T-lymphocyte surface are rapidly downregulated upon activation with peptide-MHC complex, superantigen or cross-linking with anti-TCR or anti-CD3 antibodies. PMA/Ionomycin treatment has been shown to downregulate surface CD4 expression. Receptor downregulation is a common biological phenomenon and so make sure that your stimulation treatment is not causing it in your sample type.
How stable is PerCP/Cyanine5.5 tandem as compared to PerCP alone?

PerCP/Cyanine5.5 is quite photostable and also better than PerCP alone in withstanding fixation.

Go To Top Version: 5    Revision Date: 12.05.2018

For Research Use Only. Not for diagnostic or therapeutic use.

 

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This data display is provided for general comparisons between formats.
Your actual data may vary due to variations in samples, target cells, instruments and their settings, staining conditions, and other factors.
If you need assistance with selecting the best format contact our expert technical support team.

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