Loaded Human CTLA-4-Fc on Protein A Biosensor, can bind Human B7-2-His-Avi with an affinity constant of 0.37 uM as determined in BLI assay. (Regularly tested)

B7-2 Protein, Human, Recombinant (Avi & His), Biotinylated is expressed in HEK293 mammalian cells with C-Avi-6xHis tag. The predicted molecular weight is 55-80 KDa and the accession number is AAH40261.1.

Human

HEK293 Cells

Activation B7-2 Antigen,FUN-1,CTLA-4 Counter-Receptor B7.2,CD28LG2,BU63,T-Lymphocyte Activation Antigen CD86,B70,CD86

Ala24-Pro247

Ala24-Pro247

Greater than 95% as determined by reducing SDS-PAGE. (QC verified)

Reconstitute the lyophilized protein in distilled water. The product concentration should not be less than 100 μg/ml. Before opening, centrifuge the tube to collect powder at the bottom. After adding the reconstitution buffer, avoid vortexing or pipetting for mixing.

Lyophilized powders can be stably stored for over 12 months, while liquid products can be stored for 6-12 months at -80°C. For reconstituted protein solutions, the solution can be stored at -20°C to -80°C for at least 3 months. Please avoid multiple freeze-thaw cycles and store products in aliquots.

The protein is the receptor that involved in the costimulatory signal essential for T-lymphocyte proliferation and interleukin-2 production, by binding CD28 or CTLA-4. It may play a critical role in the early events of T-cell activation and costimulation of naive T-cells, such as deciding between immunity and anergy that is made by T-cells within 24 hours after activation. Isoform 2 interferes with the formation of CD86 clusters, and thus acts as a negative regulator of T-cell activation. The protein interacts with MARCH8， human herpesvirus 8 MIR2 protein, adenovirus subgroup B fiber proteins and acts as a receptor for these viruses.It is expressed by activated B-lymphocytes and monocytes and promoted by MARCH8 and results in endocytosis and lysosomal degradation.It contains 1 Ig-like C2-type(immunoglobulin-like) domainand 1 Ig-like V-type (immunoglobulin-like) domain.