- 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
- Verified Reactivity
- Reported Reactivity
- 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 and BSA (origin USA)
- The antibody was purified by affinity chromatography and conjugated with Alexa Fluor® 700 under optimal conditions.
- Lot-specific (to obtain lot-specific concentration, please enter the lot number in our Concentration and Expiration Lookup or Certificate of Analysis online tools.)
- 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.
* 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
Additional reported applications (for the relevant formats) include: Western Blotting3 and immunoprecipitation2,3.
(PubMed link indicates BioLegend citation)
- 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_2687128 (BioLegend Cat. No. 349517)
AB_2687129 (BioLegend Cat. No. 349518)
- 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
- Menno C, et al. 2010. J. Clin. Invest. 120:1256.
- Fearon D, et al. 1995. Annu. Rev. Immunol. 13:127.
- 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
Related Pages & Pathways
Other FormatsView All CD81 Reagents Request Custom Conjugation
|Purified anti-human CD81 (TAPA-1)||5A6||FC,WB,IP|
|FITC anti-human CD81 (TAPA-1)||5A6||FC|
|PE anti-human CD81 (TAPA-1)||5A6||FC|
|PerCP/Cyanine5.5 anti-human CD81 (TAPA-1)||5A6||FC|
|APC anti-human CD81 (TAPA-1)||5A6||FC|
|PE/Cyanine7 anti-human CD81 (TAPA-1)||5A6||FC|
|Biotin anti-human CD81 (TAPA-1)||5A6||FC|
|Pacific Blue™ anti-human CD81 (TAPA-1)||5A6||FC|
|Alexa Fluor® 700 anti-human CD81 (TAPA-1)||5A6||FC|
|PE/Dazzle™ 594 anti-human CD81 (TAPA-1)||5A6||FC|
|TotalSeq™-A0373 anti-human CD81 (TAPA-1)||5A6||PG|
|TotalSeq™-C0373 anti-human CD81 (TAPA-1)||5A6||PG|
|TotalSeq™-B0373 anti-human CD81 (TAPA-1)||5A6||PG|
|TotalSeq™-D0373 anti-human CD81 (TAPA-1)||5A6||PG|
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Your actual data may vary due to variations in samples, target cells, instruments and their settings, staining conditions, and other factors.
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Purified anti-human CD81 (TAPA-1)
FITC anti-human CD81 (TAPA-1)
PE anti-human CD81 (TAPA-1)
PerCP/Cyanine5.5 anti-human CD81 (TAPA-1)
APC anti-human CD81 (TAPA-1)
PE/Cyanine7 anti-human CD81 (TAPA-1)
Biotin anti-human CD81 (TAPA-1)
Pacific Blue™ anti-human CD81 (TAPA-1)
Alexa Fluor® 700 anti-human CD81 (TAPA-1)
PE/Dazzle™ 594 anti-human CD81 (TAPA-1)
TotalSeq™-A0373 anti-human CD81 (TAPA-1)
TotalSeq™-C0373 anti-human CD81 (TAPA-1)
TotalSeq™-B0373 anti-human CD81 (TAPA-1)
TotalSeq™-D0373 anti-human CD81 (TAPA-1)