- DX9 (See other available formats)
- Other Names
- NKAT3, NKB1, KIR-NKB1, p70
- Mouse IgG1, κ
- Ave. Rating
- 1 reviews
- Product Citations
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CD158e1, also known as NKB1, is a 70 kD member of the immunoglobulin superfamily that is expressed on a subset of natural killer cells and T cells at varying levels among individuals. NKB1 is a type I membrane protein containing two immunoglobulin C2-type domains. The interaction of NKB1 with specific HLA-B antigens on a target cell (the HLA-Bw4 allele, for example) inhibits cytotoxicity and prevents target cell lysis and death. The interactions between KIR and MHC class I are thought to be important in NK and T cell regulation following antigen stimulation. The absence of ligands for KIRs may lower the threshold for activation through activating receptors and increase inflammation and susceptibility to autoimmune disease.Product Details
- Antibody Type
- Host Species
- Human NK cell clone VL186-1.6
- Phosphate-buffered solution, pH 7.2, containing 0.09% sodium azide.
- The antibody was purified by affinity chromatography and conjugated with Alexa Fluor® 700 under optimal conditions.
- 0.5 mg/ml
- 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. The suggested use of this reagent is ≤0.125 µg per million cells in 100 µl volume. It is highly recommended that the reagent be titrated for optimal performance for each application.
* Alexa Fluor® 700 has a maximum emission of 719 nm when it is excited at 633 nm / 635 nm. Prior to using Alexa Fluor® 700 conjugate for flow cytometric analysis, please verify your flow cytometer's capability of exciting and detecting the fluorochrome.
Alexa Fluor® and Pacific Blue™ are trademarks of Life Technologies Corporation.
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- Excitation Laser
Red Laser (633 nm)
- Application Notes
The DX9 antibody reacts with the KIR (killer cell inhibitory receptor) designated NKB1 or KIR3DL1. Additional reported applications (for the relevant formats) include: immunoprecipitation1 and restoring the NK cell cytotoxicity4,8. The LEAF™ purified antibody (Endotoxin <0.1 EU/μg, Azide-Free, 0.2 μm filtered) is recommended for functional assays (Cat. No. 312710).
(PubMed link indicates BioLegend citation)
- Litwin V, et al. 1994. J. Exp. Med. 180:537. (IP)
- Gumperz J, et al. 1996. J. Exp. Med. 183:1817.
- Gardiner CM, et al. 2001. J. Immunol. 166:2992.
- Bakker ABH, et al. 1998. J. Immunol. 160:5239.
- Goodier M, et al. 2000. J. Immunol. 165:139.
- Kirwan SE and Burshtyn DN. 2005. J. Immunol. 175:5006. (FC)
- Yawata M, et al. 2002. Immunogenetics 54:543.
- Valiante NM, et al. 1997. Immunity 7:739.
- Pascal V, et al. 2007. J. Immunol. 179:1625. (FC) PubMed
- Lichterfeld M, et al. 2008. J. Exp. Med. 204:2813. (FC) PubMed
- Luetke-Eversloh M, et al. 2014. PLoS Pathog. 10:1004441. PubMed
- Purdy AK, et al. 2014. J Immunol. 193:4675. PubMed
- Product Citations
AB_2234188 (BioLegend Cat. No. 312711)
AB_2130824 (BioLegend Cat. No. 312712)
- Immunoglobulin superfamily member, contains two immunoglobulin C2-type domains, 70 kD type I membrane protein
Subset of NK and T cells
- Inhibits cytotoxic function of NK and T cells upon interacting with specific HLA-B antigens on target cell
- HLA-B antigens such as the HLA-Bw4 allele
- Cell Type
- NK cells, T cells
- Biology Area
- Molecular Family
- CD Molecules
- Antigen References
1. Colonna M, et al. 1995. Science 268:405.
2. D'Andrea A, et al. 1995. J. Immunol.. 155:2306.
3. Uhrburg M, et al. 1997. Immunity 7:753.
4. Gumperz JE, et al. 1996. J. Exp. Med. 183:1817.
5. Wagtmann N, et al. 1995. Immunity 3:801.
- Gene ID
- 3811 View all products for this Gene ID
- View information about CD158e1 on UniProt.org
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