PE anti-human CD159a (NKG2A) Antibody

Pricing & Availability
S19004C (See other available formats)
Regulatory Status
Other Names
Killer Cell Lectin Like Receptor C1, KLRC1, NK Cell Receptor A
Mouse IgG1, κ
Ave. Rating
Submit a Review
Product Citations
Human peripheral blood lymphocytes were stained with CD3 FITC and CD159a (NKG2A) (clone S19004C) PE (left) or mouse IgG1, κ PE isotype control (right).
  • S19004C_PE_CD159a_Antibody_050720
    Human peripheral blood lymphocytes were stained with CD3 FITC and CD159a (NKG2A) (clone S19004C) PE (left) or mouse IgG1, κ PE isotype control (right).
Compare all formats See PE spectral data
Cat # Size Price Quantity Check Availability Save
375103 25 tests 123€
Check Availability

Need larger quantities of this item?
Request Bulk Quote
375104 100 tests 322€
Check Availability

Need larger quantities of this item?
Request Bulk Quote

CD159a, also known as NKG2A or KLRC1, is a type II transmembrane protein. It belongs to the killer cell lectin-like receptor family also known as the NKG2 family. It is expressed on NK and NKT cells and T cell subsets. NKG2A is an inhibitory NK cell receptor and it is expressed as a heterodimer with CD94. In human, NKG2A/CD94 complex interacts HLA-E on target cells and inhibits T cells and NK cell effector functions. Recent studies showed that NKG2A blockade enhances the anti-tumor effect of NK cell and CD8+ T cells.

Product Details
Technical data sheet

Product Details

Verified Reactivity
Antibody Type
Host Species
Human NKG2A/CD94-transfectants
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 PE 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.

Excitation Laser
Blue Laser (488 nm)
Green Laser (532 nm)/Yellow-Green Laser (561 nm)
Application Notes

Clone S19004C does not cross-react with mouse CD159a.

Product Citations
  1. Afolabi LO, et al. 2021. Front Immunol. 12:701671. PubMed
  2. Niu C, et al. 2021. Front Immunol. 12:658562. PubMed
AB_2888861 (BioLegend Cat. No. 375103)
AB_2888861 (BioLegend Cat. No. 375104)

Antigen Details

Type II transmembrane proteins of the C-type lectin superfamily

NK cells, NKT cells, T cell subsets

Inhibiting NK cell receptor
Cell Type
Lymphocytes, NK cells, NKT cells, T cells
Biology Area
Immuno-Oncology, Immunology
Molecular Family
Immune Checkpoint Receptors
Antigen References
  1. Brooks AG, et al. 1999. J Immunol. 162:305-13.
  2. Kaiser BK, et al. 2008. Proc Natl Acad Sci U S A. 105: 6696-701.
  3. Braud VM, et al. 2003. Trends Immunol. 24:162-4.
  4. Kamiya T, et al. 2019. J Clin Invest. 129:2094.
  5. André P, et al. 2018. Cell. 175:1731.
Gene ID
3821 View all products for this Gene ID
View information about CD159a on

Related FAQs

What type of PE do you use in your conjugates?
We use R-PE in our conjugates.
Go To Top Version: 1    Revision Date: 05.07.2020

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


This product is supplied subject to the terms and conditions, including the limited license, located at ("Terms") and may be used only as provided in the Terms. Without limiting the foregoing, BioLegend products may not be used for any Commercial Purpose as defined in the Terms, resold in any form, used in manufacturing, or reverse engineered, sequenced, or otherwise studied or used to learn its design or composition without express written approval of BioLegend. Regardless of the information given in this document, user is solely responsible for determining any license requirements necessary for user’s intended use and assumes all risk and liability arising from use of the product. BioLegend is not responsible for patent infringement or any other risks or liabilities whatsoever resulting from the use of its products.


BioLegend, the BioLegend logo, and all other trademarks are property of BioLegend, Inc. or their respective owners, and all rights are reserved.


8999 BioLegend Way, San Diego, CA 92121
Toll-Free Phone: 1-877-Bio-Legend (246-5343) Phone: (858) 768-5800 Fax: (877) 455-9587

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.


Login / Register
Remember me
Forgot your password? Reset password?
Create an Account