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Key Product Details

Species Reactivity



Immunohistochemistry, Immunohistochemistry-Paraffin, Western Blot



Antibody Source

Monoclonal Mouse IgG1 kappa Clone # 14F1F11


BSA Free


1.0 mg/ml

Product Summary for CD161 Antibody (14F1F11) - BSA Free


Amino acids 68-225 of human CD161 were used as the immunogen for this antibody.






IgG1 kappa

Scientific Data Images for CD161 Antibody (14F1F11) - BSA Free

Western Blot: CD161 Antibody (14F1F11) [NBP2-14845] - Analysis of a partial CD161 recombinant protein using CD161 antibody at 1 ug/ml.
Immunohistochemistry-Paraffin: CD161 Antibody (14F1F11) - BSA Free [NBP2-14845] - Analysis of a FFPE tissue section of human spleen using 1:200 dilution of CD161 [14F1F11] antibody. The staining was developed using HRP labeled anti-rabbit secondary antibody and DAB reagent, and nuclei of cells were counter-stained with hematoxylin.
Immunohistochemistry-Paraffin: CD161 Antibody (14F1F11) [NBP2-14845] - Analysis using Azide Free version of NBP2-14845. CD161 in human kidney using CD161 antibody at 5 ug/ml.

Applications for CD161 Antibody (14F1F11) - BSA Free

Recommended Usage


5 ug/ml

Western Blot

1-5 ug/ml
Please Note: Optimal dilutions of this antibody should be experimentally determined.

Published Applications

Read 2 publications using NBP2-14845 in the following applications:

Formulation, Preparation, and Storage


Protein G purified




BSA Free


0.05% Sodium Azide


1.0 mg/ml


The product is shipped with polar packs. Upon receipt, store it immediately at the temperature recommended below.

Stability & Storage

Store at 4C short term. Aliquot and store at -20C long term. Avoid freeze-thaw cycles.

Background: CD161

CD161 is a C-Type Lectin Receptor, also known as NKR-P1A, previously found on NKT cells and subsets of T-cells. Phenotyping of cells that are functionally producing IL-17 has shown the one constant marker is CD161. While it had been shown previously that human CD4+ cells that produce both IL-17 and IFNg give rise to Th17/Th1 cells, indicating common etiology of these two T cell subsets, a clear marker for cells producing IL-17 is CD161. In fact, all cells characterized as the following subsets CD4+TCRab+, CD8+TCRab+, CD4-CD8-TCRab+, and CD4-CD8-TCRgd+ bearing CD161 also produce IL-17 but cells of these same phenotypes and functional marker which do not bear CD161 also do not produce IL-17. Induction of CD161 expression by transduction with RORC also induces IL-1R and IL-23R as well as the ability to produce IL-17. The ability to produce IL-17 and the induction of CD161 shows a strong dependency for RORC. Antibody to CD161 provides a probe for identifying IL-17 producing cells and offers a finer delineation of additional subsets derived from Th17 and their functional characteristics through cytokine mRNA expression or production.

Alternate Names


Gene Symbol



Additional CD161 Products

Product Documents for CD161 Antibody (14F1F11) - BSA Free

Certificate of Analysis

To download a Certificate of Analysis, please enter a lot number in the search box below.

Product Specific Notices for CD161 Antibody (14F1F11) - BSA Free

This product is for research use only and is not approved for use in humans or in clinical diagnosis. Primary Antibodies are guaranteed for 1 year from date of receipt.



View specific protocols for CD161 Antibody (14F1F11) - BSA Free (NBP2-14845):

Immunohistochemistry-Paraffin Embedded Sections

Antigen Unmasking:
Bring slides to a boil in 10 mM sodium citrate buffer (pH 6.0) then maintain at a sub-boiling temperature for 10 minutes. Cool slides on bench-top for 30 minutes (keep slides in the sodium citrate buffer all the time).

1. Wash sections in deionized water three times for 5 minutes each.
2. Wash sections in PBS for 5 minutes.
3. Block each section with 100-400 ul blocking solution (1% BSA in PBS) for 1 hour at room temperature.
4. Remove blocking solution and add 100-400 ul diluted primary antibody. Incubate overnight at 4 C.
5. Remove antibody solution and wash sections in wash buffer three times for 5 minutes each.
6. Add 100-400 ul HRP polymer conjugated secondary antibody. Incubate 30 minutes at room temperature.
7. Wash sections three times in wash buffer for 5 minutes each.
8. Add 100-400 ul DAB substrate to each section and monitor staining closely.
9. As soon as the sections develop, immerse slides in deionized water.
10. Counterstain sections in hematoxylin.
11. Wash sections in deionized water two times for 5 minutes each.
12. Dehydrate sections.
13. Mount coverslips.

Western Blot Protocol

1. Perform SDS-PAGE on samples to be analyzed, loading 10-25 ug of total protein per lane.
2. Transfer proteins to PVDF membrane according to the instructions provided by the manufacturer of the membrane and transfer apparatus.
3. Stain the membrane with Ponceau S (or similar product) to assess transfer success, and mark molecular weight standards where appropriate.
4. Rinse the blot TBS -0.05% Tween 20 (TBST).
5. Block the membrane in 5% Non-fat milk in TBST (blocking buffer) for at least 1 hour.
6. Wash the membrane in TBST three times for 10 minutes each.
7. Dilute primary antibody in blocking buffer and incubate overnight at 4C with gentle rocking.
8. Wash the membrane in TBST three times for 10 minutes each.
9. Incubate the membrane in diluted HRP conjugated secondary antibody in blocking buffer (as per manufacturer's instructions) for 1 hour at room temperature.
10. Wash the blot in TBST three times for 10 minutes each (this step can be repeated as required to reduce background).
11. Apply the detection reagent of choice in accordance with the manufacturers instructions.

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