146451
Clone Type
PolyclonalHost
RabbitSource
HumanIsotype
IgGGrade
Affinity PurifiedApplications
E IF IHC WBCrossreactivity
Hu Mo RtShipping Temp
Blue IceStorage Temp
-20°CRabbit Anti-CD81 (CD81 Antigen, 26kD Cell Surface Protein TAPA-1, Target of the Antiproliferative Antibody 1, Tapa126kD Cell Surface Protein TAPA-1, Tapa1, Tspan28)
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.
Applications
Suitable for use in ELISA, Western Blot, Immunofluorescence and Immunohistochemistry. Other applications not tested.
Recommended Dilution
Western Blot: 1ug/ml Immunohistochemistry (Formalin fixed paraffin embedded): 5ug/ml Immunofluorescence: 20ug/ml Optimal dilutions to be determined by the researcher.
Positive Control
Human Lung Tissue Lysate
Storage and Stability
May be stored at 4°C for short-term only. Aliquot to avoid repeated freezing and thawing. Store at -20°C. Aliquots are stable for at least 12 months. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap.
Immunogen
Synthetic peptide corresponding to 20aa from near the N-terminus of human CD81.
Form
Supplied as a liquid in PBS, 0.02% sodium azide.
Purity
Purified by immunoaffinity chromatography.
Specificity
Recognizes human CD81. Species Crossreactivity: mouse and rat.
Intended for research use only. Not for use in human, therapeutic, or diagnostic applications.
References
1. 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. 2. Charrin S, le Naour F, Silvie O, et al. Lateral organization of membrane proteins: tetraspanins spin their web. Biochem. J. 2009; 420:133-54.|3. 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. 4. 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.USBio References
No references available