Recombinant Human CD81 antigen (CD81) , partial (Active)

• CAS Number:

  9000-83-3

• Gene Name:

  CD81

• UniProt:

  P60033

• Expression Region:

  113-201aa

• Organism:

  Homo sapiens

• Target Sequence:

  FVNKDQIAKDVKQFYDQALQQAVVDDDANNAKAVVKTFHETLDCCGSSTLTALTTSVLKNNLCPSGSNIISNLFKEDCHQKIDDLFSGK

• Tag:

  C-terminal 10xHis-tagged

• Source:

  Mammalian cell

• Field of Research:

  Cancer

• Assay Type:

  Active Protein & In Stock Protein

• Relevance:

  Structural component of specialized membrane microdomains known as tetraspanin-enriched microdomains (TERMs), which act as platforms for receptor clustering and signaling. Essential for trafficking and compartmentalization of CD19 receptor on the surface of activated B cells.

• Endotoxin:

  Less than 1.0 EU/ug as determined by LAL method.

• Purity:

  Greater than 95% as determined by SDS-PAGE.

• Activity:

  Yes

• Bioactivity:

  Measured by its binding ability in a functional ELISA. Immobilized Human CD81 at 2 μg/mL can bind Anti-CD81 recombinant antibody (CSB-RA004960MA1HU), the EC50 is 4.166-5.578 ng/mL.

• Length:

  Partial

• Form:

  Lyophilized powder

• Buffer:

  Lyophilized from a 0.2 μm filtered 20 mM Tris-HCl, 0.5 M NaCl, 6% Trehalose, pH 8.0

• Reconstitution:

  We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Please reconstitute protein in deionized sterile water to a concentration of 0.1-1.0 mg/mL.We recommend to add 5-50% of glycerol (final concentration) and aliquot for long-term storage at -20℃/-80℃. Our default final concentration of glycerol is 50%. Customers could use it as reference.

• Molecular Weight:

  11.1 kDa

• References & Citations:

  "TAPA-1, the target of an antiproliferative antibody, defines a new family of transmembrane proteins." Oren R., Takahashi S., Doss C., Levy R., Levy S. Mol. Cell. Biol. 10:4007-4015 (1990)

• Storage Conditions:

  The shelf life is related to many factors, storage state, buffer ingredients, storage temperature and the stability of the protein itself. Generally, the shelf life of liquid form is 6 months at -20℃/-80℃. The shelf life of lyophilized form is 12 months at -20℃/-80℃.

• Protein Length:

  Partial