Lyophilized from 0.22µm filtered solution in PBS (pH 7.4). Normally 8% trehalose is added as protectant before lyophilization.
Expression System:
HEK293
Purity:
> 95% as determined by Bis-Tris PAGE,> 90% as determined by HPLC
Form:
Lyophilized
Sequence:
Glu21-Phe141
Target:
ICOS/CD278
Human ICOS, hFc Tag captured on CM5 Chip via Protein A can bind Cynomolgus B7-H2, His Tag with an affinity constant of 5.42 nM as determined in SPR assay (Biacore T200).
Immobilized Human B7-H2, His Tag at 1ug/ml (100ul/Well) on the plate. Dose response curve for Human ICOS, hFc Tag with the EC50 of 15.2ng/ml determined by ELISA (QC Test).
Immobilized Human ICOS, hFc Tag at 1ug/ml (100ul/well) on the plate. Dose response curve for Biotinylated Anti-ICOS Antibody, hFc Tag with the EC50 of 10.0ng/ml determined by ELISA.
The purity of Human ICOS is greater than 90% as determined by SEC-HPLC.
Human ICOS on Bis-Tris PAGE under reduced condition. The purity is greater than 95%.
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