Recombinant human CD86 protein (Fc Chimera) (ab167720)
Key features and details
- Expression system: HEK 293 cells
- Purity: > 95% SDS-PAGE
- Endotoxin level:
- Active: Yes
- Suitable for: Functional Studies, SDS-PAGE, ELISA
Preparation and Storage
-
Stability and Storage
Shipped at 4°C. Store at +4°C short term (1-2 weeks). Upon delivery aliquot. Store at -20°C or -80°C. Avoid freeze / thaw cycle.
pH: 7.4
Constituents: 0.75% Glycine, 0.48% Tris, L-Arginine, Sodium chloride
Lyophilized from 0.22 µm filtered solution.
5-10% trehalose is commonly used for freeze drying, and after reconstitution, the trehalose is mostly about 3-5%This product is an active protein and may elicit a biological response in vivo, handle with caution.
-
ReconstitutionIt is recommended to reconstitute the lyophilized protein with 500 µL sterile deionized water to a stock solution of 400 µg/mL.
Images
-
Human B7-2, Fc Tag on SDS-PAGE under reducing (R) and non-reducing (NR) conditions. The gel was stained overnight with Coomassie Blue. The purity of the protein is greater than 95%. The protein migrates as 66-86 kDa under reducing (R) condition, and 120-140 kDa under non-reducing (NR) condition (SDS-PAGE).
-
FACS assay shows that Human B7-2, Fc Tag can bind to 293T cells overexpressing human CTLA4 protein. The concentration of Human B7-2 is 3 µg/ml.
-
FACS analysis shows that the binding of Human B7-2, Fc Tag to CD28 expressed on Jurkat E6.1 was inhibited by increasing concentration of neutralizing anti-CD28 antibody. The concentration of B7-2 used is 2 µg/ml. The IC50 is 0.022 µg/ml.
-
Flow Cytometry assay shows that recombinant Human B7-2, Fc Tag can bind to CD28 expressed on Jurkat E6.1. The concentration of B7-2 used is 2 µg/ml(Routinely tested).
-
Immobilized Biotinylated Human / Cynomolgus / Rhesus macaque CD28, His,Avitag at 1 μg/mL (100 μL/well) on Streptavidin precoated (0.5 μg/well) plate, can bind Human ab167720 with a linear range of 2-78 ng/mL.
-
Immobilized Biotinylated Mouse CD28, His,Avitag at 1 μg/mL (100 μL/well) on Streptavidin precoated (0.5 μg/well) plate, can bind ab167720 with a linear range of 5-78 ng/mL.
-
Immobilized ab167720 at 5 µg/mL (100 µL/well) can bind Biotinylated Human CTLA-4, Fc Tag, Avi Tag with a linear range of 0.6-10 ng/mL.