- HOST SPECIES: Rabbit
- SPECIES REACTIVITY: Human, Mouse, Rat
- HOMOLOGY: Predicted species reactivity based on immunogen sequence: Bovine: (95%)
- IMMUNOGEN: 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.
- CONJUGATE: Unconjugated
- TESTED APPLICATIONS: E, IF, IHC-P, WB
- APPLICATION NOTE: 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.
- POSITIVE CONTROL 1: Cat. No. 1283 - RAW 264.7 Cell Lysate
- POSITIVE CONTROL 2: Cat. No. 10-101 - Human Lung Tissue Slide
- POSITIVE CONTROL 3: Cat. No. 17-003 - A549 Cell Slide
- PREDICTED MOLECULAR WEIGHT: Predicted: 26 kDa
Observed: 25 kDa
- PURIFICATION: CD81 Antibody is affinity chromatography purified via peptide column.
- CLONALITY: Polyclonal
- ISOTYPE: IgG
- PHYSICAL STATE: Liquid
- BUFFER: CD81 Antibody is supplied in PBS containing 0.02% sodium azide.
- CONCENTRATION: 1 mg/mL
- STORAGE CONDITIONS: CD81 antibody can be stored at 4°C for three months and -20°C, stable for up to one year. As with all antibodies care should be taken to avoid repeated freeze thaw cycles. Antibodies should not be exposed to prolonged high temperatures.
- NCBI OFFICIAL SYMBOL: CD81
- ADDITIONAL NAMES: CD81 Antibody: S5.7, CVID6, TAPA1, TSPAN28, CD81 antigen, 26 kDa cell surface protein TAPA-1, Tspan-28
- Protein Accession Number: NP_004347
- PROTEIN GI NUMBER: 4757944
- NCBI GENE ID NUMBER: 975
- USER NOTE: Optimal dilutions for each application to be determined by the researcher.
- 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.
- 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.
- FOR RESEARCH USE ONLY
For additional information, visit ProSci's Terms & Conditions Page.
- Disclaimer: 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.
CATALOG NUMBER: 5195
- Size: 0.02 mg | 0.1 mg
- List Price: $109.00 – $379.00
$65 Standard Overnight flat rate for as many products shipped within the United States.
$35 Dry Ice Shipment fee may be required on some items.
Note: Online orders only accepted for shipment within the USA. Click here for the list of international distributors.
New & Featured Products
CATALOG NUMBER: 95-201
CATALOG NUMBER: 95-200
CATALOG NUMBER: 9805