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cFluor™ YG584 Anti-Human CD4 (SK3)

cFluor™ YG584 Anti-Human CD4 (SK3)

SKU R7-20042
Regular price
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The SK3 monoclonal antibody binds to human CD4, a 59-kDa type I transmembrane glycoprotein in the immunoglobulin superfamily. It is expressed predominantly on thymocytes and a subpopulation of mature T-helper lymphocytes. CD4 is also present on monocytes in low levels(1) (3). CD4 plays a role in cell-cell interaction by acting as a T cell receptor for MHC class II peptide antigens recognition. CD4 also has been shown to bind glycoprotein 120 on external envelope of HIV(2). The antibody was conjugated with the fluorophore and purified by affinity chromatography.  



Clone:                  SK3

Reactivity:          Human

Format:                cFluor YG584

Isotype:               Mouse IgG1, κ

Tested Dilution:  5 μL / test

Application:        Flow Cytometry

Storage:               2-8°C and protected from Light. (Do not freeze)

Formulation:       Phosphate-buffered solution, pH 7.2, containing 0.09% sodium azide and 0.2% BSA.



Each lot of this antibody is quality control tested with flow cytometric analysis. The suggested use of this reagent is 5 µl per million cells in 100 µl staining volume of PBMCs or 5 µl per 100 µl of whole blood. Since applications vary, users should titrate the antibody to obtain the optimal results according to the application.


  1. Evans RL, et al. 1981. Immunol. 78:544
  2. Arno A et al. 1999. J. Infect. Dis. 180:56
  3. Muench M, et al. 1997. Blood 89:1364

The cFluor YG584 is the equivalent of CF®568 manufactured and provided by Biotium under an Agreement between Biotium and Cytek (LICENSEE). The manufacture, use, sale, offer for sale, or import of the product is covered by one or more of the patents or pending applications owned or licensed by Biotium, Inc. (U.S. Patent Nos.)  The purchase of this product includes a limited, non-transferable immunity from suit under the foregoing patent claims for using only this amount of product for the purchaser’s own internal research. No right under any other patent claim, no right to perform any patented method, and no right to perform commercial services of any kind, including without limitation reporting the results of purchaser's activities for a fee or other commercial consideration, is conveyed expressly, by implication, or by estoppel. 

These products are for research use only and are not intended for diagnostic use.


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