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MABF172C

Sigma-Aldrich

Anti-CD4 (human), violetFluor® 450, clone RPA-T4 Antibody

clone RPA-T4, from mouse, violetFluor® 450

Synonym(s):

T-cell surface glycoprotein CD4, T-cell surface antigen T4/Leu-3, CD antigen CD4, CD4

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About This Item

UNSPSC Code:
12352203
eCl@ss:
32160702
NACRES:
NA.41

biological source

mouse

Quality Level

conjugate

violetFluor® 450

antibody form

purified antibody

antibody product type

primary antibodies

clone

RPA-T4, monoclonal

species reactivity

human

technique(s)

flow cytometry: suitable

UniProt accession no.

target post-translational modification

unmodified

Gene Information

human ... CD4(920)

General description

The RPA-T4 antibody reacts with human CD4, a 59 kDa protein which acts as a co-receptor for the T cell receptor (TCR) in its interaction with MHC Class II molecules on antigen-presenting cells. The extracellular domain of CD4 binds to the beta-2 domain of MHC Class II, while its cytoplasmic tail provides a binding site for the tyrosine kinase lck, facilitating the signaling cascade that initiates T cell activation. CD4, and co-receptors CCR5 and CXCR4, may also be utilized by HIV-1 to enter T cells. Human CD4 is typically expressed on thymocytes, some mature T cell populations such as Th17 and T regulatory (Treg) cells, as well as on dendritic cells.The RPA-T4 antibody is widely used as a phenotypic marker for human CD4 expression, and is cross-reactive with Chimpanzee CD4. This antibody recognizes a different epitope, and thus does not block binding of the alternative Anti-Human CD4 antibody clone OKT4 (Reinherz EL, et al. 1979. Proc. Natl. Acad. Sci. 76:4061-4065).

Immunogen

Immunogen information for this antibody is proprietary information.

Application

Research Category
Inflammation & Immunology
Research Sub Category
Immunoglobulins & Immunology
This mouse monoclonal Anti-CD4 Antibody (human), violetFluor® 450, clone RPA-T4, Cat. No. MABF1728 is validated for use in Flow Cytometry, for the detection of CD4.

Quality

This monoclonal antibody was purified from tissue culture supernatant via affinity chromatography. The purified antibody was conjugated under optimal conditions, with unreacted dye removed from the preparation.

Flow Cytometry Analysis: 0.25 μg from a representative lot detected CD4 in one million human peripheral blood lymphocytes.

Physical form

Purified Mouse monoclonal containing 10 mM NaH2PO4, 150 mM NaCl, 0.09% NaN3, 0.1% gelatin, pH7.2.
Purified by size-exclusion chromatography

Storage and Stability

Stable for 1 year at 2-8°C from date of receipt.
Note: It is recommended to store the product undiluted at 2-8°C and protected from prolonged exposure to light. Do not freeze.

Other Notes

Concentration: Please refer to lot specific datasheet.

Legal Information

violetFluor is a registered trademark of Tonbo Biotechnologies

Disclaimer

Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.

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Storage Class

12 - Non Combustible Liquids

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Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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