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Limited Edition Golden Llama is here! Check out how you can get one. 
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This protein carries a polyhistidine tag at the N-terminus, followed by a flag tag.
The protein has a calculated MW of 62.8 kDa. The protein migrates as 55-60 kDa under non-reducing (NR) condition (SDS-PAGE).
>95% as determined by SDS-PAGE.
Lyophilized from 0.22 μm filtered solution in PBS, pH7.4 with trehalose as protectant.
Contact us for customized product form or formulation.
Please see Certificate of Analysis for specific instructions.
For best performance, we strongly recommend you to follow the reconstitution protocol provided in the CoA.
For long term storage, the product should be stored at lyophilized state at -20°C or lower.
Please avoid repeated freeze-thaw cycles.
This product is stable after storage at:
Human 4-1BB Ligand (71-254) Protein, His,Flag Tag on SDS-PAGE under non-reducing (NR) condition. The gel was stained with Coomassie Blue. The purity of the protein is greater than 95%.
The purity of Human 4-1BB Ligand (71-254) Protein, His,Flag Tag (Cat. No. 41L-H52D4) is more than 85% and the molecular weight of this protein is around 55-70 kDa verified by SEC-MALS.
Immobilized Human 4-1BB Ligand (71-254) Protein, His,Flag Tag (Cat. No. 41L-H52D4) at 2 μg/mL (100 μL/well) can bind Human 4-1BB, Fc Tag (Cat. No. 41B-H5258) with a linear range of 0.2-3 ng/mL (QC tested).
Loaded Mouse 4-1BB, Fc Tag (Cat. No. 41B-M5258) on Protein A Biosensor, can bind Human 4-1BB Ligand (71-254) Protein, His,Flag Tag (Cat. No. 41L-H52D4) with an affinity constant of 18.6 nM as determined in BLI assay (ForteBio Octet Red96e) (Routinely tested).
Human 4-1BB Ligand (71-254) Protein, His,Flag Tag (Cat. No. 41L-H52D4) induce IL-8 secretion in HT1080 human CD137 cell line. The EC50 for this effect is 0.20-0.44 μg/mL (Routinely tested).
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