- Clone
- W17149G (See other available formats)
- Regulatory Status
- RUO
- Other Names
- B-Lymphocyte activation antigen B7.1, CD80, Ly53, TSA1, CD28 ligand (CD28L), MIC17
- Isotype
- Rat IgG2b, κ
-
Recombinant biotinylated hCTLA-4 (black circles) binds to immobilized recombinant hCD80. Anti-hCD80 antibody (clone W17149G, purple squares) inhibits the binding in a dose-dependent manner whereas the GoInVivo™ Purified Rat IgG2b, κ Isotype Ctrl Antibody (Cat. No. 400666, green triangles) does not have the effect. This antibody blocks the binding of 10 ng/mL recombinant biotinylated hCTLA-4 to 1 µg/mL immobilized recombinant hCD80 with an ND50 of 0.05-0.4 µg/mL. -
Recombinant biotinylated hCD80 (black circles) binds to immobilized recombinant hCD28. Both anti-hCD80 antibody (clone W17149G, purple squares) and GoInVivo™ Purified Rat IgG2b, κ Isotype Ctrl Antibody (Cat. No. 400666, green triangles) do not inhibit the binding between hCD80 and hCD28.
| Cat # | Size | Price | Quantity Check Availability | ||
|---|---|---|---|---|---|
| 621803 | 100 µg | $270.00 | |||
| 621804 | 1 mg | $715.00 | |||
Select size of product is eligible for a 40% discount! Promotion valid until December 31, 2024. Exclusions apply. To view full promotion terms and conditions or to contact your local BioLegend representative to receive a quote, visit our webpage.
CD80, also known as B7-1, is a member of the B7 family of proteins. The B7 family of proteins are structurally related, cell membrane-associated molecules that regulate immune responses by delivering costimulatory or coinhibitory signals via their ligands. So far, eight family members have been identified, including B7-1, B7-2, B7-H1, B7-H2, B7-H4, B7-H6, PD-L1, and PD-L2. These proteins are mainly expressed by activated antigen presenting cells (APCs) and when paired with either CD28 or CTLA-4 on a T lymphocyte, they induce an increase or decrease in the downstream signaling activity of the MHC-TCR interaction between APCs and T cells. B7-1 has been shown to bind both CTLA-4 and CD28; however, it has a 20-fold higher affinity to CTLA-4 than to CD28. Despite their structural similarities, the individual contribution of B7-1 and B7-2 to the development of pathogenic T cells in autoimmune diseases and protective T cells in infectious diseases is markedly distinct. Besides regulating T cell immune responses, B7 also plays a role in anti-tumor immunity. This is confirmed by demostrating that cytotoxic T cells were able to eradicate tumor cells transfected with B7-1 and B7-2. After activation, follicular lymphoma was shown to upregulate B7-1 and other costimulatory and adhesion molecules, therefore increasing APC activity and amplifying primed T cell responses. Homozygous null B7-1/B7-2 mice fail to generate antigen specific IgG1 and IgG2a responses, suggesting that B7 proteins are important in Ig immune responses. Mouse and human B7-1 share 44% amino acid identity.
Product Details
- Verified Reactivity
- Human
- Antibody Type
- Monoclonal
- Host Species
- Rat
- Immunogen
- Human CD80 Recombinant Protein
- Formulation
- 0.2 µm filtered in phosphate-buffered solution, pH 7.2, containing no preservative.
- Preparation
- The Ultra-LEAF™ (Low Endotoxin, Azide-Free) antibody was purified by affinity chromatography.
- Concentration
- The antibody is bottled at the concentration indicated on the vial, typically between 2 mg/mL and 3 mg/mL. Older lots may have also been bottled at 1 mg/mL. 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. This Ultra-LEAF™ solution contains no preservative; handle under aseptic conditions.
- Application
-
Block - Quality tested
- Recommended Usage
-
Each lot of this antibody is quality control tested by blocking the binding between hCD80 and hCTLA-4. The ND50 range is 0.05 – 0.4 µg/mL. It is recommended that the reagent be titrated for optimal performance for each application.
- RRID
-
AB_2820106 (BioLegend Cat. No. 621803)
AB_2820106 (BioLegend Cat. No. 621804)
Antigen Details
- Structure
- Homodimer
- Distribution
-
Activated B cells, monocytes, macrophages, dendritic cells
- Function
- Plays a role in T cell activation; CD80 and CD86 play an important role in T cell priming.
- Interaction
- T cells
- Ligand/Receptor
- CD28, CTLA-4
- Cell Type
- B cells, Dendritic cells, Macrophages, T cells, Tregs
- Biology Area
- Cell Biology, Costimulatory Molecules, Immunology, Neuroscience, Neuroscience Cell Markers
- Molecular Family
- CD Molecules, Immune Checkpoint Receptors
- Antigen References
-
- Freeman GJ, et al. 1993. Science. 262:909.
- Azuma M, et al. 1993. Nature. 366:76.
- Gimmi CD, et al. 1991. Proc. Natl. Acad. Sci. USA. 88:6575.
- Linsley PS, et al. 1991 J. Exp. Med. 173:721.
- Greaves P and Gribben JG, 2013. Blood. 121: 734.
- Czuczman MS, et al. 2005. J. Clin. Oncol. 23:4390.
- Gene ID
- 941 View all products for this Gene ID
- UniProt
- View information about CD80 on UniProt.org
Other Formats
View All CD80 Reagents Request Custom Conjugation| Description | Clone | Applications |
|---|---|---|
| Ultra-LEAF™ Purified anti-human CD80 | W17149G | Block |
Compare Data Across All Formats
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.
-
Ultra-LEAF™ Purified anti-human CD80
Recombinant biotinylated hCTLA-4 (black circles) binds to im... 
Recombinant biotinylated hCD80 (black circles) binds to immo...