Human CTLA-4, 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 98%.
Immobilized Human B7-2, His Tag at 10 ug/mL (100 uL/well) can bind Human CTLA-4, Fc Tag with a linear range of 2-78 ng/mL.
Immobilized Human CTLA-4, Fc Tag at 10 ug/mL (100 uL/well) can bind Human B7-1, His Tag with a linear range of 0.156-1.25 ug/mL.
Serial dilutions of Ipilimumab were added into Human CTLA-4, Fc Tag: Biotinylated Human B7-1, Fc,Avitag binding reactions. The half maximal inhibitory concentration (IC50) is 0.8260 ug/mL.
Serial dilutions of Ipilimumab were added into Human CTLA-4, Fc Tag: Biotinylated Human B7-2, Fc,Avitag binding reactions. The half maximal inhibitory concentration (IC50) is 0.1701 ug/mL.
Loaded Human CTLA-4, Fc Tag on Protein A Biosensor, can bind Human B7-1, His Tag with an affinity constant of 0.52 uM as determined in BLI assay (ForteBio Octet Red96e).
Loaded Human CTLA-4, Fc Tag on Protein A Biosensor, can bind Human B7-2, His Tag with an affinity constant of 1.9 uM as determined in BLI assay (ForteBio Octet Red96e).