CD81 recombinant protein

CD81 Recombinant Protein

Cat. Num. AAA3003713

• Gene Names: CD81; S5.7; CVID6; TAPA1; TSPAN28
• Purity: Transferred into competent cells and the supernatant was purified by NI column affinity chromatography and the purity is >85% (by SDS-PAGE).
• Synonyms: CD81; CD81 Recombinant Protein; CD81 recombinant protein

• Host: E Coli
• Purity/Purification: Transferred into competent cells and the supernatant was purified by NI column affinity chromatography and the purity is >85% (by SDS-PAGE).
• Form/Format: PBS, 4M Urea, PH7.4

• Tag: His-tag
• Expression Vector: pet-22b(+)
• Restriction Site: NdeI-XhoI
• Preparation and Storage: Store at 4 degee C for short term. Aliquot and store at -20 degee C long term. Avoid freeze-thaw cycles.

Testing Data

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Related Product Information for CD81 recombinant protein

Background: CD81 belongs to the tetraspanin family, which is characterized by four transmembrane domains, one short extracellular domain (ECL1), and one long extracellular domain (ECL2). Tetraspanins interact with a variety of cell surface proteins and intracellular signaling molecules in specialized tetraspanin enriched microdomains (TEMs) where they mediate a range of processes including adhesion, motility, membrane organization, and signal transduction (3). CD81, like other tetraspanins, is enriched in exosomes. Many research studies demonstrate a role for CD81 in lymphocyte signaling. CD81 is also a well-characterized receptor for Hepatitis C Virus and facilitates the entry of the virus into target cells.

NCBI and Uniprot Product Information

• NCBI GI #: 38503376
• NCBI GeneID: 975
• UniProt Accession #: P60033; P18582; Q5U0J6
• Molecular Weight: ~10kDa
• NCBI Official Full Name: CD81 antigen
• NCBI Official Synonym Full Names: CD81 molecule
• NCBI Official Symbol: CD81
• NCBI Official Synonym Symbols: S5.7; CVID6; TAPA1; TSPAN28
• NCBI Protein Information: CD81 antigen
• UniProt Protein Name: CD81 antigen
• Protein Family: CD81 antigen
• UniProt Gene Name: CD81
• UniProt Synonym Gene Names: TAPA1; TSPAN28; Tspan-28

NCBI Description

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]

Uniprot Description

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.(Microbial infection) Acts as a receptor for hepatitis C virus (HCV) in hepatocytes. Associates with CLDN1 and the CLDN1-CD81 receptor complex is essential for HCV entry into host cell.