anti-CD81 antibody [2F7] (Biotin)

anti-CD81 antibody [2F7] (Biotin) for Blocking,Flow cytometry,ICC/IF,Immunohistochemistry and Mouse


Product Description Biotin-conjugated Hamster Monoclonal antibody [2F7] recognizes CD81
Tested Reactivity Ms
Tested Application BL, FACS, ICC/IF, IHC
Specificity Mouse CD81. The clone 2F7 can block thymocyte interaction with CD81 in vitro.
Host Hamster
Clonality Monoclonal
Clone 2F7
Isotype IgG3
Target Name CD81
Antigen Species Mouse
Immunogen Mouse epithelial cell line PAM212
Conjugation Biotin
Alternate Names CD antigen CD81; TAPA1; Tspan-28; S5.7; CD81 antigen; Target of the antiproliferative antibody 1; Tetraspanin-28; 26 kDa cell surface protein TAPA-1; CVID6; TSPAN28

Application Instructions

Application Suggestion
Tested Application Dilution
FACS< 1 µg/10^6 cells
Application Note * The dilutions indicate recommended starting dilutions and the optimal dilutions or concentrations should be determined by the scientist.


Form Liquid
Buffer PBS and 0.1% Sodium azide.
Preservative 0.1% Sodium azide
Concentration 0.5 mg/ml
Storage Instruction Aliquot and store in the dark at 2-8°C. Keep protected from prolonged exposure to light. Avoid repeated freeze/thaw cycles. Suggest spin the vial prior to opening. The antibody solution should be gently mixed before use.
Note For laboratory research only, not for drug, diagnostic or other use.


Database Links

GeneID: 12520 Mouse CD81

Swiss-port # P35762 Mouse CD81 antigen

Gene Symbol CD81
Gene Full Name CD81 antigen
Background The protein encoded by this gene is a member of the transmembrane 4 superfamily, also known as the tetraspanin family. Most of these members are cell-surface proteins that are characterized by the presence of four hydrophobic domains. The proteins mediate signal transduction events that play a role in the regulation of cell development, activation, growth and motility. This encoded protein is a cell surface glycoprotein that is known to complex with integrins. This protein appears to promote muscle cell fusion and support myotube maintenance. Also it may be involved in signal transduction. This gene is localized in the tumor-suppressor gene region and thus it is a candidate gene for malignancies. Two transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jul 2014]
Function May play an important role in the regulation of lymphoma cell growth. Interacts with a 16-kDa Leu-13 protein to form a complex possibly involved in signal transduction. May act as the viral receptor for HCV. [UniProt]
Calculated MW 26 kDa
PTM Not glycosylated.

Images (1) Click the Picture to Zoom In

  • ARG21038 anti-CD81 antibody [2F7] (Biotin) FACS image

    Flow Cytometry: Chinese hamster ovary cell line CHO-K1 (negative control) and BALB/cAnN Mouse B lymphocyte cell line A20 stained with ARG21038 anti-CD81 antibody [2F7] (Biotin) followed by Streptavidin (FITC).