APC/Fire™ 810 anti-human CD194 (CCR4) Antibody

Pricing & Availability
L291H4 (See other available formats)
Regulatory Status
Other Names
CKR4, K5-5, CMKBR4, ChemR13, CC-CKR-4, MGC88293, HGCN:14099
Mouse IgG1, κ
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Product Citations
Human peripheral blood lymphocytes were stained with anti-human CD3 FITC and anti-human CD194 (clone L291H4) APC/Fire™ 810 (left) or mouse IgG1, κ APC/Fire™ 810 isotype control (right).
  • L291H4_APCFire810_CD194_Antibody_022822
    Human peripheral blood lymphocytes were stained with anti-human CD3 FITC and anti-human CD194 (clone L291H4) APC/Fire™ 810 (left) or mouse IgG1, κ APC/Fire™ 810 isotype control (right).
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359439 25 tests 137€
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359440 100 tests 306€
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CD194, also known as CCR4, is a CC chemokine receptor. It binds CCL17 and CCL22 and is expressed on a subset of T and B cells, basophils, monocytes, and NK cells. Human Th2 cells are characterized by the expression of CCR4 and CCR8, and these receptors are regulated differently during Th2 development. Human peripheral blood Tregs can be divided into two distinct populations based on the expression of CCR4. Freshly isolated Tregs express CCR4 and presumably represent memory-type Tregs, and CCR4- Tregs require CD3-mediated activation to acquire a regulatory activity. Depletion of CCR4+ T cells leads to Th1-type polarization of CD4+ T cells and augmentation of CD8+ T cell responses to tumor antigens. CCR4 and its ligands are important for the recruitment of memory T cells into the skin in various cutaneous immune diseases.

Product Details
Technical Data Sheet (pdf)

Product Details

Verified Reactivity
Reported Reactivity
Antibody Type
Host Species
Human CCR4 transfected cells
Phosphate-buffered solution, pH 7.2, containing 0.09% sodium azide and BSA (origin USA)
The antibody was purified by affinity chromatography and conjugated with APC/Fire™ 810 under optimal conditions.
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.

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. It is recommended that the reagent be titrated for optimal performance for each application.

* APC/Fire™ 810 has a maximum excitation of 650 nm and a maximum emission of 810 nm.

Excessive exposure to light, and commonly used fixation, permeabilization buffers can affect APC/Fire™ 810 fluorescence signal intensity and spread. Please keep conjugates protected from light exposure. For more information and representative data, visit our Fire Dyes page.
Excitation Laser
Red Laser (633 nm)
AB_2910405 (BioLegend Cat. No. 359439)
AB_2910405 (BioLegend Cat. No. 359440)

Antigen Details

GPCR, seven transmembrane receptor

Expressed on a subset of T and B cells, basophils, monocytes, NK cells

Migration of inflammatory and regulatory cells to the target tissues
CCL17 and CCL22
Cell Type
B cells, Basophils, Embryonic Stem Cells, Monocytes, NK cells, T cells, Tregs
Biology Area
Immunology, Innate Immunity, Stem Cells
Molecular Family
CD Molecules, Cytokine/Chemokine Receptors, GPCR
Antigen References

1. Katschke KJ, et al. 2001 Arthritis Rheum. 44:1022.
2. Colantonio L, et al. 2002 Eur. J. Immunol. 32:1264.
3. Jakubzick C et al. 2004 Am. J. Pathol. 165:1211.
4. Morimoto Y, et al. 2005 J. Leukoc. Biol. 78:753.
5. Baatar J, et al. 2007 J. Immunol. 178:4891.
6. Kusumoto M, et al. 2007 J. Interferon. Cytokine Res. 27:901.

Gene ID
1233 View all products for this Gene ID
View information about CD194 on UniProt.org

Related FAQs

Does staining at room temperature or even at 37°C help for checking chemokine receptors expression?

Due to continuous recycling of many chemokine receptors, it may be worthwhile to consider staining at room temperature or at 37°C if the staining at lower temperature (which can potentially reduce receptor turnover) is not optimal.

Go To Top Version: 1    Revision Date: 02/28/2022

For research use only. Not for diagnostic use. Not for resale. BioLegend will not be held responsible for patent infringement or other violations that may occur with the use of our products.


*These products may be covered by one or more Limited Use Label Licenses (see the BioLegend Catalog or our website, www.biolegend.com/ordering#license). BioLegend products may not be transferred to third parties, resold, modified for resale, or used to manufacture commercial products, reverse engineer functionally similar materials, or to provide a service to third parties without written approval of BioLegend. By use of these products you accept the terms and conditions of all applicable Limited Use Label Licenses. Unless otherwise indicated, these products are for research use only and are not intended for human or animal diagnostic, therapeutic or commercial 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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