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CD81 antibody []

Anti-CD81 antibody [] used in IHC (Paraffin sections) (IHC-P). GTX34568
Anti-CD81 antibody [] used in IHC (Paraffin sections) (IHC-P). GTX34568

Cat No. GTX34568

Host Mouse
Clonality Monoclonal
Clone Name
Isotype IgG1
Application WB, ICC/IF, IHC-P
Reactivity Human, Mouse, Rat
100 μg ($429)

Application Note

*Optimal dilutions/concentrations should be determined by the researcher.
Application Dilution
WB 0.5-1.0ug/ml for 2 hours at RT
ICC/IF 0.5-1ug/ml
IHC-P 0.5-1ug/ml for 30 minutes at RT

Note :

Boiling tissue sections in 10mM citrate buffer, pH 6.0, for 10-20 min followed by cooling at RT for 20 minutes

Not tested in other applications.

Calculated MW

26 kDa. ( Note )


Recognizes a protein of 26kDa, identified as CD81 (Workshop VI; Code CD81.1)). CD81 has a very broad cellular distribution, being expressed on T- and B-lymphocytes, NK cells, thymocytes, eosinophils, fibroblasts, epithelial and endothelial cells. Neutrophils, erythrocytes and platelets are negative, while monocytes are variably positive. CD81 is a member of a family of tetraspans transmembrane proteins, including CD9, CD37, CD53, CD63, and CD82. It associates with CD19, CD21, Leu 13, and integrins on cell membrane and is involved in signal transduction in B lymphocyte development and cell adhesion. CD81 also acts as a receptor for the envelope protein E2 of chronic hepatitis C virus. Antibodies to CD81 have anti-proliferative effects on different lymphoid cell lines, particularly those derived from large cell lymphomas.




10mM PBS with 0.05% BSA, 0.05% azide (Please contact us for PBS only format)


Store as concentrated solution. Centrifuge briefly prior to opening vial. For short-term storage (1-2 weeks), store at 4ºC. For long-term storage, aliquot and store at -20ºC or below. Avoid multiple freeze-thaw cycles.


0.2 mg/ml


B-Cell line derived from a Burkitt lymphoma


Ab purified from Bioreactor Concentrate by Protein A/G




For laboratory use only. Not for any clinical, therapeutic, or diagnostic use in humans or animals. Not for animal or human consumption.


Cd81 Molecule , Cvid6 , S5.7 , Tapa1 , Tspan28 , Cd81


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]


Anti-CD81 antibody [] used in IHC (Paraffin sections) (IHC-P). GTX34568

GTX34568 IHC-P Image

Formalin-fixed, paraffin-embedded human Lymph Node stained with CD81 Mouse Monoclonal Antibody (

Anti-CD81 antibody [] used in IHC (Paraffin sections) (IHC-P). GTX34568

GTX34568 IHC-P Image

Formalin-fixed, paraffin-embedded human Tonsil stained with CD81 Mouse Monoclonal Antibody (

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Package List Price ($)
$ 429