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The antibody was purified by affinity chromatography, and conjugated with PE under optimal conditions. The solution is free of unconjugated PE and unconjugated antibody.
Concentration:
0.2 mg/ml
Storage & Handling:
The antibody solution should be stored undiluted at 4°C and protected from prolonged exposure to light. Do not freeze.
Each lot of this antibody is quality control tested by immunofluorescent staining with flow cytometric analysis. For immunofluorescent staining, the suggested use of this reagent is ≤ 0.25 µg per 106 cells in 100 µl volume. It is recommended that the reagent be titrated for optimal performance for each application.
COA:
Application Notes:
Additional reported applications (for the relevant formats) include: immunoprecipitation1,2, Western blotting1,2, induction of homotypic adhesion of B lymphocytes1, stimulation of B cells undergo early apoptotic events1, and promotion of T cell motility2. The LEAF™ purified antibody (Endotoxin <0.1 EU/μg, Azide-Free, 0.2 μm sterile-filtered) is recommended for functional assays (Cat. No. 104908).
Application References:
1. Maecker HT, et al. 2000. Hybridoma 19:15. (IP WB Stim) 2. Clark KL, et al. 2001. J. Immunol. 167:5115. (IP WB Activ) 3. Bhatnagar S and Schorey JS. 2007. J. Biol. Chem. doi:10.1074/jbc.M702277200. PubMed
CD81 is a 26 kD non-glycosylated member of the tetraspanin superfamily (TM4SF), also known as TAPA-1. CD81 is expressed on T and B cells, NK cells, dendritic cells, thymocytes, endothelial cells and fibroblasts. CD81 induces B cell adhesion via the 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. The Eat-2 antibody reacts with mouse and rat CD81.
Other Names:
TAPA-1
Structure:
TM4SF tetraspanin, 26 kD
Distribution:
T and B cells, NK cells, dendritic cells, thymocytes, endothelial cells, fibroblasts
Function:
Regulates cell growth
Antigen References:
1. Barclay AN, et al. 1997. The Leukocyte Antigen FactsBook Academic Press. 2. Levy S, et al. 1998. Annu. Rev. Immunol. 16:89. 3. Maeker HT, et al. 1997. FASEB J. 11:428. 4. Boismenu R, et al. 1996. Science 271:198.
*These products may be covered by one or more Limited Use Label Licenses (see the BioLegend Catalog or our website, www.biolegend.com/terms). BioLegend products may not be transferred to third parties, resold, modified for resale, or used to manufacture commercial products or to provide a service to third parties without written approval of BioLegend. By use of these products you accept the terms and conditions of all applicable Limited Use Label Licenses. Unless otherwise indicated, these products are for research use only and are not intended for human or animal diagnostic, therapeutic or commercial use.
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