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anti-CD81 antibody :: Hamster anti-Mouse, rat CD81 Monoclonal Antibody

Scan QR to view Datasheet Catalog #    MBS520207
Testing Data
Unit / Price
0.25 mg  /  $270 +1 FREE 8GB USB
 Go to:   rightarrow  Product Names   rightarrow Product Info   rightarrow Accession #s   rightarrow Product Desc   rightarrow Diseases/Tissues/Pathways   rightarrow Applications   rightarrow References 
 Product Name   

CD81, Monoclonal Antibody

 Also Known As   

Anti-Mouse/Rat CD81, Purified (Clone Eat2) (mouse IgG1)

 Product Synonym Names    CD81, Purified (Clone Eat2) (mouse IgG1); Purified Anti-Mouse CD81 (TAPA-1) Monoclonal Antibody
 Product Gene Name   

anti-CD81 antibody

[Similar Products]
 Research Use Only    For Research Use Only. Not for use in diagnostic procedures.
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 Chromosome Location    Chromosome: 11; NC_000011.9 (2397391..2418649). Location: 11p15.5
 OMIM    186845
 3D Structure    ModBase 3D Structure for P60033
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 Clonality    Monoclonal
 Isotype    Hamster IgG
 Clone Number    EAT 2
 Host    Hamster
 Species Reactivity    Mouse, rat
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 Specificity    CD81 (TAPA-1) (Mouse CD81 (TAPA-1))
 Form/Format    Purified (Purified Ig buffered in PBS and 0.02% NaN3 (purified from cell culture supernatant via Protein G Chromatography))
 Concentration    Antibody Concentration: 1.0 mg/ml (lot specific)
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 Presentation    250 ug purified Ig buffered in PBS and 0.02% NaN3
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 Preparation and Storage    Store at 4 degree C. For long term storage, aliquot and freeze unused portion at -20 degree C in volumes appropriate for single usage. Avoid freeze/thaw cycles.
 Other Notes    Small volumes of anti-CD81 antibody vial(s) may occasionally become entrapped in the seal of the product vial during shipment and storage. If necessary, briefly centrifuge the vial on a tabletop centrifuge to dislodge any liquid in the container`s cap. Certain products may require to ship with dry ice and additional dry ice fee may apply.
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Related Product Information for anti-CD81 antibody

   MBS520207 reacts with the extracellular loops of murine CD81 (TAPA- 1) molecule. As a member of the tetraspanin superfamily of cell-surface proteins, CD81 has been linked to the control of cell proliferation, adhesion and motility. CD81 is expressed in higher levels on resting murine B cells than on resting T cells and is functionally active on B cells as it induces homotypic adhesion of B lymphocytes. Unlike human CD81, which is expressed equally on all thymocytes, murine CD81 is upregulated on CD4+CD8+ thymocytes, then down-regulated again on mature single-positive thymocytes. Murine dendritic cells, splenic macrophages and non-killer cells all express very high levels of CD81. CD81 has also been involved in the induction of IL-4 secretion from T cells during Th2 immune responses. It has been reported that CD81 expression can also be induced in mature T cells upon activation. This anti-CD81 mAb has been shown to decrease the proliferation of LPS stimulated CD81+/+ B cells to levels similar to that of CD81-/ - B cells.
 Applications Tested/Suitable for anti-CD81 antibody   

Immunohistochemistry (IHC)

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 Testing Data of anti-CD81 antibody    anti-CD81 antibody Testing Data image
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NCBI/Uniprot data below describe general gene information for CD81. It may not necessarily be applicable to this product.
 NCBI GI #    4757944
 NCBI GeneID    975
 NCBI Accession #    NP_004347.1 [Other Products]
 NCBI GenBank Nucleotide #    NM_004356.3 [Other Products]
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 UniProt Primary Accession #    P60033 [Other Products]
 UniProt Secondary Accession #    P18582; Q5U0J6 [Other Products]
 UniProt Related Accession #    P60033 [Other Products]
 Molecular Weight    25,809 Da
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 NCBI Official Full Name    CD81 antigen
 NCBI Official Synonym Full Names    CD81 molecule
 NCBI Official Symbol    CD81 [Similar Products]
 NCBI Official Synonym Symbols   
[Similar Products]
 NCBI Protein Information    CD81 antigen; tspan-28; tetraspanin-28; 26 kDa cell surface protein TAPA-1; CD81 antigen (target of antiproliferative antibody 1)
 UniProt Protein Name    CD81 antigen
 UniProt Synonym Protein Names   
26 kDa cell surface protein TAPA-1; Target of the antiproliferative antibody 1; Tetraspanin-28
 Protein Family    CD81 antigen
 UniProt Gene Name    CD81 [Similar Products]
 UniProt Synonym Gene Names    TAPA1; TSPAN28; Tspan-28 [Similar Products]
 UniProt Entry Name    CD81_HUMAN
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 NCBI Summary for 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. [provided by RefSeq, Jul 2008]
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 UniProt Comments for CD81    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.

Subunit structure: Plays a critical role in HCV attachment and/or cell entry by interacting with HCV E1/E2 glycoproteins heterodimer. Interacts directly with IGSF8. Interacts with CD53 and SCIMP. Interacts with IFITM1, IFITM2 and IFITM3. Part of a GPCR-tetraspanin complex consisting at least of GPR56, CD81, eventually CD9, and GNA11 in which CD81 is enhancing the association of GPR56 with GNA11. Ref.6 Ref.8 Ref.9 Ref.10 Ref.11 Ref.14

Subcellular location: Membrane; Multi-pass membrane protein.

Tissue specificity: Hematolymphoid, neuroectodermal and mesenchymal tumor cell lines.

Post-translational modification: Not glycosylated


Involvement in disease: Immunodeficiency, common variable, 6 (CVID6) [MIM:613496]: A primary immunodeficiency characterized by antibody deficiency, hypogammaglobulinemia, recurrent bacterial infections and an inability to mount an antibody response to antigen. The defect results from a failure of B-cell differentiation and impaired secretion of immunoglobulins; the numbers of circulating B cells is usually in the normal range, but can be low.Note: The disease is caused by mutations affecting the gene represented in this entry. Ref.12

Sequence similarities: Belongs to the tetraspanin (TM4SF) family.
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 Research Articles on CD81    1. HRas signal transduction promotes hepatitis C virus cell entry by triggering the host CD81-CLDN1 complex formation.
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 Precautions    All of MyBioSource's Products are for scientific laboratory research purposes and are not for diagnostic, therapeutics, prophylactic or in vivo use. Through your purchase, you expressly represent and warrant to MyBioSource that you will properly test and use any Products purchased from MyBioSource in accordance with industry standards. MyBioSource and its authorized distributors reserve the right to refuse to process any order where we reasonably believe that the intended use will fall outside of our acceptable guidelines.
 Disclaimer    While every efforts were made to ensure the accuracy of the information provided in this datasheet, MyBioSource will not be liable for any omissions or errors contained herein. MyBioSource reserves the right to make changes to this datasheet at any time without prior notice.

It is the responsibility of the customer to report product performance issues to MyBioSource within 30 days of receipt of the product. Please visit our Terms & Conditions page for more information.
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Pathways associated with anti-CD81 antibodyDiseases associated with anti-CD81 antibody
 Products by Pathway  Pathway Diagram
 Adaptive Immune System Pathway antibodies  Adaptive Immune System Pathway Diagram
 B Cell Receptor Signaling Pathway antibodies  B Cell Receptor Signaling Pathway Diagram
 B Cell Receptor Signaling Pathway antibodies  B Cell Receptor Signaling Pathway Diagram
 B Cell Receptor Signaling Pathway antibodies  B Cell Receptor Signaling Pathway Diagram
 Hepatitis C Pathway antibodies  Hepatitis C Pathway Diagram
 Hepatitis C Pathway antibodies  Hepatitis C Pathway Diagram
 Immune System Pathway antibodies  Immune System Pathway Diagram
 Immunoregulatory Interactions Between A Lymphoid And A Non-Lymphoid Cell Pathway antibodies  Immunoregulatory Interactions Between A Lymphoid And A Non-Lymphoid Cell Pathway Diagram
 Malaria Pathway antibodies  Malaria Pathway Diagram
 Malaria Pathway antibodies  Malaria Pathway Diagram
 Disease Name  Pubmed Publications
 Hepatitis C Antibodies  >472 publications with CD81 and Hepatitis C
 Liver Diseases Antibodies  >209 publications with CD81 and Liver Diseases
 Neoplasms Antibodies  >145 publications with CD81 and Neoplasms
 Carcinoma Antibodies  >83 publications with CD81 and Carcinoma
 Carcinoma, Hepatocellular Antibodies  >58 publications with CD81 and Carcinoma, Hepatocellular
 Liver Neoplasms Antibodies  >43 publications with CD81 and Liver Neoplasms
 Adenocarcinoma Antibodies  >38 publications with CD81 and Adenocarcinoma
 Lymphoma Antibodies  >36 publications with CD81 and Lymphoma
 Liver Cirrhosis Antibodies  >35 publications with CD81 and Liver Cirrhosis
 Inflammation Antibodies  >32 publications with CD81 and Inflammation
Organs/Tissues associated with anti-CD81 antibody
 Organ/Tissue Name  Pubmed Publications
 Blood Antibodies  >310 publications with CD81 and Blood
 Liver Antibodies  >210 publications with CD81 and Liver
 Bone Antibodies  >43 publications with CD81 and Bone
 Bone Marrow Antibodies  >37 publications with CD81 and Bone Marrow
 Brain Antibodies  >36 publications with CD81 and Brain
 Kidney Antibodies  >22 publications with CD81 and Kidney
 Lung Antibodies  >22 publications with CD81 and Lung
 Vascular Antibodies  >20 publications with CD81 and Vascular
 Lymph Node Antibodies  >17 publications with CD81 and Lymph Node
 Nerve Antibodies  >16 publications with CD81 and Nerve
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