Further Information
CD81 Antibody: S5.7, CVID6, TAPA1, TSPAN28, CD81 antigen, 26 kDa cell surface protein TAPA-1, Tspan-28
CD81 antibody can be used for detection of CD81 by Western blot at 2.5 μg/mL. Antibody can also be used for immunohistochemistry starting at 2 μg/mL. For immunofluorescence start at 10 μg/mL.
Antibody validated: Western Blot in human samples; Immunohistochemistry in human samples and Immunofluorescence in human samples. All other applications and species not yet tested.
CD81 Antibody: CD81 is a member of the transmembrane 4 superfamily, also known as the tetraspanin family, a group of cell-surface proteins that are characterized by the presence of four hydrophobic domains and mediate signal transduction events that play a role in the regulation of cell development, activation, growth and motility. CD81 is a cell surface glycoprotein that associates with integrins and appears to promote muscle cell fusion and support myotube maintenance. Along with SCARB1, LDL-R, and CLDN1, CD81 has been reported to be an entry factor for the Hepatitis C virus. Finally, recent evidence indicates that the CD81 gene is localized in a tumor-suppressor gene region and is thus a candidate gene for malignancies.
- Oren R, Takahashi S, Doss C, et al. TAPA-1, the target of an antiproliferative antibody, defines a new family of transmembrane proteins. Mol. Cell Biol. 1990; 10:4007-15.
- Charrin S, le Naour F, Silvie O, et al. Lateral organization of membrane proteins: tetraspanins spin their web. Biochem. J. 2009; 420:133-54.
- Mannion BA, Berditchevski F, Kraeft SK, et al. Transmembrane-4 superfamily proteins CD81 (TAPA-1), CD82, CD63, and CD53 specifically associated with integrin alpha 4 beta 1 (CD49d/CD29). J. Immunol. 1996; 157:2039-47.
- Tacvhibana I and Hemler ME. Role of transmembrane 4 superfamily (TM4SF) proteins CD9 and CD81 in muscle cell fusion and myotube maintenance. J. Cell Biol. 1999; 146:893-90.
CD81 Antibody is supplied in PBS containing 0.02% sodium azide.
1 mg/mL
Unconjugated
Optimal dilutions/concentrations should be determined by the end user. The information provided is a guideline for product use. This product is for research use only.
Predicted species reactivity based on immunogen sequence: Bovine: (95%)
CD81 antibody was raised against a 20 amino acid synthetic peptide near the amino terminus of human CD81.
The immunogen is located within amino acids 30 - 80 of CD81.
975
CD81 molecule
CD81
Homo sapiens
Liquid
PREDICTED MOLECULAR WEIGHT:
Predicted: 26 kDa
Observed: 25 kDa
NP_004347
4757944
CD81 Antibody is affinity chromatography purified via peptide column.
Infectious Disease
P60033
Optimal dilutions for each application to be determined by the researcher.