Product Details
Description
The CD81 antibody, clone JS-81, is derived from hybridization of P3/NS1/1-Ag4-1 mouse myeloma cells with spleen cells isolated from mice immunized with the Burkitt lymphoma cell line, Ramos.
The CD81 antibody recognizes a 26-kilodalton (kDa) member of the tetraspanin family (TM4SF). The CD81 antigen is also known as TAPA-1.
Preparation And Storage
The antibody reagent is stable until the expiration date shown on the label when stored at 2° to 8°C. Do not use after the expiration date. Do not freeze the reagent or expose it to direct light during storage or incubation with cells. Keep the reagent vial dry. Do not use the reagent if you observe any change in appearance. Precipitation or discoloration indicates instability or deterioration.
Product Notices
- Please refer to www.bdbiosciences.com/us/s/resources for technical protocols.
- Please refer to http://regdocs.bd.com to access safety data sheets (SDS).
- For U.S. patents that may apply, see bd.com/patents.
- This reagent has been pre-diluted for use at the recommended Volume per Test. We typically use 1 × 10^6 cells in a 100-µl experimental sample (a test).
- For fluorochrome spectra and suitable instrument settings, please refer to our Multicolor Flow Cytometry web page at www.bdbiosciences.com/colors.
- An isotype control should be used at the same concentration as the antibody of interest.
- BD APC-H7 is a tandem conjugate and an analog of APC-Cy7 with the same spectral properties. It has decreased intensity but it is engineered for greater stability and less spillover in the APC channel and consequently offers better performance than APC-Cy7. It has an absorption maximum of approximately 650 nm. When excited by light from a red laser, the APC fluorochrome can transfer energy to the cyanine dye, which then emits at a longer wavelength. The resulting fluorescent emission maximum is approximately 767 nm. BD recommends that a 750-nm longpass filter be used along with a red-sensitive detector such as the Hamamatsu R3896 PMT. As with APC-Cy7 special filters are required when using APC-H7 in conjunction with APC. Note: Although our APC-H7 products demonstrate higher lot-to lot consistency than other APC tandem conjugate products, and every effort is made to minimize the lot-to-lot variation in residual emission from APC, it is strongly recommended that every lot be tested for differences in the amount of compensation required and that individual compensation controls are run for each APC-H7 conjugate.
- Although BD APC-H7 is engineered to minimize spillover to the APC channel and is more stable and less affected by light, temperature, and formaldehyde-based fixatives, compared to other APC-cyanine tandem dyes, it is still good practice to minimize as much as possible, any light, temperature and fixative exposure when working with all fluorescent conjugates.
- Please observe the following precautions: We recommend that special precautions be taken (such as wrapping vials, tubes, or racks in aluminum foil) to protect exposure of conjugated reagents, including cells stained with those reagents, to any room illumination. Absorption of visible light can significantly affect the emission spectra and quantum yield of tandem fluorochrome conjugates.
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Citations & References
Development References (9)
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Bradbury LE, Kansas GS, Levy S, Evans RL, Tedder TF. The CD19/CD21 signal transducing complex of human B lymphocytes includes the target of antiproliferative antibody-1 and Leu-13 molecules. J Immunol. 1992; 149(9):2841-2850. (Biology). View Reference
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Centers for Disease Control. Update: universal precautions for prevention of transmission of human immunodeficiency virus, hepatitis B virus, and other bloodborne pathogens in healthcare settings. MMWR. 1988; 37:377-388. (Biology).
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Clinical and Laboratory Standards Institute. 2005. (Biology).
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Fearon DT, Carroll MC. Regulation of B lymphocyte responses to foreign and self-antigens by the CD19/CD21 complex. Annu Rev Immunol. 2000; 18:393-422. (Biology).
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Levy S, Todd SC, Maecker HT. CD81 (TAPA-1): a molecule involved in signal transduction and cell adhesion in the immune system. Annu Rev Immunol. 1998; 16:89-109. (Biology). View Reference
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Oren R, Takahashi S, Doss C, Levy R, Levy S. TAPA-1, the target of an antiproliferative antibody, defines a new family of transmembrane proteins. Mol Cell Biol. 1990; 10(8):4007-4015. (Biology). View Reference
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Pesando JM, Hoffman P, Conrad T. Malignant human B cells express two populations of p24 surface antigens. J Immunol. 1986; 136:2709-2714. (Biology).
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Takahashi S, Doss C, Levy S, Levy R. TAPA-1, the target of an antiproliferative antibody, is associated on the cell surface with the Leu-13 antigen. J Immunol. 1990; 145:2207-2213. (Biology).
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Tedder TF, Wagner N, Engel P. Schlossman SF, Boumsell L, Gilks W, et al, ed. Leukocyte Typing V. White Cell Differentiation Antigens. New York, NY: Oxford University Press; 1995:684-688.
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For In Vitro Diagnostics Use.
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