- Clone
- 5A6 (See other available formats)
- Other Names
- S5.7, CVID6, TSPAN28
- Isotype
- Mouse IgG1, κ
- Ave. Rating
- Submit a Review
- Product Citations
- publications
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 DetailsProduct Details
- Reactivity
- Human
- Reported Reactivity
- African Green, Baboon, Cynomolgus, Rhesus
- Antibody Type
- Monoclonal
- Host Species
- Mouse
- Immunogen
- Human OCI-LY8 cell line
- Formulation
- Phosphate-buffered solution, pH 7.2, containing 0.09% sodium azide and 0.2% (w/v) BSA (origin USA) and a stabilizer.
- Preparation
- The antibody was purified by affinity chromatography and conjugated with FITC under optimal conditions.
- Concentration
- 200 µg/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.
- Application
-
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. It is recommended that the reagent be titrated for optimal performance for each application.
- Excitation Laser
-
Blue Laser (488 nm)
- Application Notes
-
Additional reported applications (for the relevant formats) include: Western Blotting3 and immunoprecipitation2,3.
-
Application References
(PubMed link indicates BioLegend citation) -
- Van Zelm MC, et al. 2010. J. Clin. Invest. 120:1265.
- 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
- Disclaimer
-
GMP RUO Flow Cytometry Antibodies. BioLegend GMP RUO fluorophore conjugated antibodies are manufactured in a dedicated GMP facility and compliant with ISO 13485:2016. For research use only. Not for use in diagnostic or therapeutic procedures. Our processes include:
- Batch-to-batch consistency
- Material traceability
- Documented procedures
- Documented employee training
- Equipment maintenance and monitoring records
- Lot-specific certificates of analysis
- Quality audits per ISO 13485:2016
- QA review of released products
Antigen Details
- Structure
- 26 kD, type III transmembrane protein, member of the TM4SF tetraspanin family. Complexed with CD82, CD19, CD21, or CD4, CD8.
- Distribution
-
T cells, NK, monocytes, B cells, endothelial and epithelial cells, low on granulocytes.
- Function
- 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
-
- Van Zelm MC, et al. 2010. J. Clin. Invest. 120:1265
- 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
- UniProt
- View information about CD81 on UniProt.org
Related FAQs
Other Formats
View All CD81 Reagents Request Custom ConjugationDescription | Clone | Applications |
---|---|---|
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 |
FITC anti-human CD81 | 5A6 | FC |
PE/Fire™ 640 anti-human CD81 (TAPA-1) | 5A6 | FC |
Spark YG™ 581 anti-human CD81 (TAPA-1) | 5A6 | FC |
Spark Blue™ 574 anti-human CD81 (TAPA-1) | 5A6 | FC |
Brilliant Violet 785™ anti-human CD81 (TAPA-1) | 5A6 | FC |
GMP FITC anti-human CD81 (TAPA-1) | 5A6 | FC |
Spark Red™ 718 anti-human CD81 (TAPA-1) | 5A6 | FC |
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.
-
Purified anti-human CD81 (TAPA-1)
Human peripheral blood lymphocytes stained with purified CD8... -
FITC anti-human CD81 (TAPA-1)
Human peripheral blood lymphocytes stained with CD81 (5A6) F... -
PE anti-human CD81 (TAPA-1)
Human peripheral blood lymphocytes stained with CD81 (5A6) P... -
PerCP/Cyanine5.5 anti-human CD81 (TAPA-1)
Human peripheral blood lymphocytes were stained with CD81 (c... -
APC anti-human CD81 (TAPA-1)
Human peripheral blood lymphocytes were stained with anti-hu... -
PE/Cyanine7 anti-human CD81 (TAPA-1)
Human peripheral blood lymphocytes were stained with CD81 (c... -
Biotin anti-human CD81 (TAPA-1)
Human peripheral blood lymphocytes were stained with biotiny... -
Pacific Blue™ anti-human CD81 (TAPA-1)
Human peripheral blood lymphocytes were stained with CD81 (c... -
Alexa Fluor® 700 anti-human CD81 (TAPA-1)
Human peripheral blood lymphocytes were stained with CD81 (c... -
PE/Dazzle™ 594 anti-human CD81 (TAPA-1)
Human peripheral blood lymphocytes were stained with anti-hu... -
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)
-
FITC anti-human CD81
Typical results from human peripheral blood lymphocytes stai... -
PE/Fire™ 640 anti-human CD81 (TAPA-1)
Human peripheral blood lymphocytes were stained with anti-hu... -
Spark YG™ 581 anti-human CD81 (TAPA-1)
Human peripheral blood lymphocytes were stained with anti-hu... -
Spark Blue™ 574 anti-human CD81 (TAPA-1)
Human peripheral blood lymphocytes were stained with anti-hu... -
Brilliant Violet 785™ anti-human CD81 (TAPA-1)
Human lysed whole blood was stained with anti-human CD81 (TA... -
GMP FITC anti-human CD81 (TAPA-1)
Typical results from human peripheral blood lymphocytes stai... -
Spark Red™ 718 anti-human CD81 (TAPA-1)
Human peripheral blood lymphocytes were stained with anti-hu...
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