Name: Human CD81 (N-FC)
Synonyms: CD81 antigen;CD81 molecule;CD81;CVID6;TAPA1;TAPA-1;TSPAN28
Expression host: HEK293 Cells
Sequence: Phe113-Lys201
Accesstion: P60033
Species: Human
Mol_Mass: 36.1 kDa
AP_Mol_Mass: 37 kDa
Tag: N-Fc
Purity: > 95 % as determined by reducing SDS-PAGE.
Endotoxin:
Storage: Generally, lyophilized proteins are stable for up to 12 months when stored at -20 to -80℃. Reconstituted protein solution can be stored at 4-8℃ for 2-7 days. Aliquots of reconstituted samples are stable at
Shipping: This product is provided as lyophilized powder which is shipped with ice packs.
Formulation: Lyophilized from a 0.2 μm filtered solution of PBS, pH 7.4.Normally 5 % – 8 % trehalose, mannitol and 0.01% Tween80 are added as protectants before lyophilization.Please refer to the specific buffer information in the printed manual.
Reconstitution: Please refer to the printed manual for detailed information.
Background: CD81, also known as TAPA-1 and Tetraspanin-28, belongs to the transmembrane 4 superfamily, also known as the tetraspanin family. Members of this family mediate signal transduction events that play a role in the regulation of cell development, activation, growth and motility. CD81 is a widely expressed cell-surface protein involved in an astonishing variety of biologic responses. CD81 associates with a wide range of membrane proteins including CD151, TfR2, LDL R, PCSK9, Glypican 3, IFITM1, IGSF8/CD316, FPRP, and complexes of CD19-CD21. It is related to adhesion, morphology, activation, proliferation, and differentiation of B, T, and other cells. CD81 additionally functions as a receptor for the E2 glycoprotein of hepatitis C virus. The CD81-E2 interaction inhibits NK cell cytolytic activity, provides a co-stimulatory signal to T cells, and inhibits the maturation of plasmacytoid dendritic cells.
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