- 5A6 (See other available formats)
- Regulatory Status
- Other Names
- S5.7, CVID6, TSPAN28
- Mouse IgG1, κ
- Ave. Rating
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- Product Citations
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CD81 is a 26 kD non-glycosylated member of the tetraspanin superfamily (TM4SF), also known as TAPA-1 (target of an antiproliferative antibody). CD81 is expressed on T and B cells, NK cells, monocytes, dendritic cells, thymocytes, endothelial cells, and fibroblasts. It also has low levels of expression on granulocytes. CD81 induces B cell adhesion via VLA-4 integrin and has been shown to play a role in early T cell development. CD81 associates with several other cell-surface proteins in a multimolecular complex, including CD19, CD21, CD20, CD37, CD53, and CD82 in B cells, and CD4, CD8, and CD82 in T cells.Product Details
- Human, African Green, Baboon, Cynomolgus, Rhesus
- Antibody Type
- Host Species
- Human OCI-LY8 cell line
- Phosphate-buffered solution, pH 7.2, containing 0.09% sodium azide.
- The antibody was purified by affinity chromatography and conjugated with biotin under optimal conditions.
- 0.5 mg/ml
- Storage & Handling
- The antibody solution should be stored undiluted between 2°C and 8°C. 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 ≤0.125 µg per million cells in 100 µl volume. It is recommended that the reagent be titrated for optimal performance for each application.
- Application Notes
Additional reported applications (for the relevant formats) include: Western Blotting3 and immunoprecipitation2,3.
- Application References
- Menno C, et al. 2010. J. Clin. Invest. 4:1265.
- Oren R, et al. 1990. Mol. Cell. Biol. 8:4007. (IP)
- Clark K, et al. 2004. J. Biol. Chem. 279(19):19401. (IP, WB)
- Mochida K, et al. 2008. J. Virol. 13:6711.
- Rappa G, et al. 2014. Mol Cancer Res. 12:1840. PubMed
- Product Citations
AB_2572038 (BioLegend Cat. No. 349514)
- 26 kD, type III transmembrane protein, member of the TM4SF tetraspanin family. Complexed with CD82, CD19, CD21, or CD4, CD8.
T cells, NK, monocytes, B cells, endothelial and epithelial cells, low on granulocytes.
- Regulates cell activation and growth and cell aggregation.
- Cell Type
- B cells, Endothelial cells, Epithelial cells, Monocytes, Neural Stem Cells, NK cells, T cells
- Biology Area
- Cell Biology, Immunology, Neuroscience, Neuroscience Cell Markers, Signal Transduction, Stem Cells, Transcription Factors
- Molecular Family
- Adhesion Molecules, CD Molecules
- Antigen References
1. Menno C, et al. 2010. J. Clin. Invest. 4:1265.
2. Fearon D, et al. 1995. Annu. Rev. Immunol. 13:127.
3. Wright M, et al. 1994. Immunol. Today 15:588.
- Gene ID
- 975 View all products for this Gene ID
- View information about CD81 on UniProt.org
- How many biotin molecules are per antibody structure?
- We don't routinely measure the number of biotins with our antibody products but the number of biotin molecules range from 3-6 molecules per antibody.
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