CD81, also known as CD81 antigen isoform 1, belongs to the tetraspanin family. It interacts directly with immunoglobulin superfamily member 8 (IGSF8, CD316) and CD36. In B cells, it is part of a complex with CD21, CD19 and Leu13. This complex reduces the threshold for B cell activation through B cell receptors by linking Ag specific recognition and CD21 mediator recognition. On T cells it associates with CD4 and CD8 and provides a costimulatory signal with CD3.
Source:Recombinant protein corresponding to aa113-201 from human CD81, fused to hIgG-His-Tag at C-terminal, expressed in insect cell.
Molecular Weight:~37kD (331aa), 40-57kD (SDS-PAGE under reducing conditions)
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 12 months after receipt. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap.
仕様
Size:50ug
Source Antigen:Recombinant, Baculovirus
Grade:Highly Purified
Purity:~95% (SDS-PAGE)
Form:Supplied as a liquid in PBS, pH 7.4, 10% glycerol.