Brilliant Violet 785™ anti-human CD4 Antibody

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 Brilliant Violet 785™ 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.

Brilliant Violet 785™ excites at 405 nm and emits at 785 nm. The bandpass filter 780/60 nm is recommended for detection, although filter optimization may be required depending on other fluorophores used. Be sure to verify that your cytometer configuration and software setup are appropriate for detecting this channel. Refer to your instrument manual or manufacturer for support. Brilliant Violet 785™ is a trademark of Sirigen Group Ltd.

Learn more about Brilliant Violet™.

This product is subject to proprietary rights of Sirigen Inc. and is made and sold under license from Sirigen Inc. The purchase of this product conveys to the buyer a non-transferable right to use the purchased product for research purposes only. This product may not be resold or incorporated in any manner into another product for resale. Any use for therapeutics or diagnostics is strictly prohibited. This product is covered by U.S. Patent(s), pending patent applications and foreign equivalents.

Excitation Laser

Violet Laser (405 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)

1. Knapp W, et al. 1989. Leucocyte Typing IV. Oxford University Press. New York.
2. Reinherz EL, et al. 1979. Proc. Natl. Acad. Sci. 76:4061.
3. Kmieciak M, et al. 2009. J. Transl. Med. 7:89. (FC) PubMed
4. Cicin-Sain L, et al. 2010. J. Immunol. 184:6739. PubMed
5. Rosenzweig M, et al. 2001. J. Med. Primatol. 30:36.
6. Linder J, et al. 1987. Am. J. Pathol. 127:1.
7. Boche D, et al. 1999. J. Neurovirol. 5:232. (IHC)
8. Reinherz EL, et al. 1979. Proc. Natl. Acad. Sci. USA. 76:4061. (Immunogen)
9. Lederman S, et al. 1991. Mol Immunol. 28:1171-81.

Product Citations

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RRID

AB_2563242 (BioLegend Cat. No. 317441)
AB_2563242 (BioLegend Cat. No. 317442)

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 Protocols

• Cell Surface Flow Cytometry Staining Protocol

Other Formats