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Product Details
Synonyms
PD-L1, CD274, B7-H1, PDCD1L1, PDCD1LG1
Source
Human PD-L1, Fc Tag (PD1-H5258) is expressed from human 293 cells (HEK293). It contains AA Phe 19 - Arg 238 (Accession # NP_054862.1).
Predicted N-terminus: Phe 19
Request for sequenceMolecular Characterization
Other Tags and Version Biotin & Other Labeled Version
This protein carries a human IgG1 Fc tag at the C-terminus.
The protein has a calculated MW of 51.3 kDa. The protein migrates as 60-75 kDa under reducing (R) condition (SDS-PAGE) due to glycosylation.
Endotoxin
Less than 0.01 EU per μg by the LAL method / rFC method.
Purity
>95% as determined by SDS-PAGE.
>95% as determined by SEC-MALS.
Formulation
Lyophilized from 0.22 μm filtered solution in PBS, pH7.4 with trehalose as protectant.
Contact us for customized product form or formulation.
Reconstitution
Please see Certificate of Analysis for specific instructions.
For best performance, we strongly recommend you to follow the reconstitution protocol provided in the CoA.
Storage
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:
- -20°C to -70°C for 24 months in lyophilized state;
- -70°C for 12 months under sterile conditions after reconstitution.
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Performance Data
SDS-PAGE
Human PD-L1, Fc Tag on SDS-PAGE under reducing (R) condition. The gel was stained with Coomassie Blue. The purity of the protein is greater than 95%.
SEC-MALS
The purity of Human PD-L1, Fc Tag (Cat. No. PD1-H5258) is more than 95% and the molecular weight of this protein is around 105-140 kDa verified by SEC-MALS.
Report
Bioactivity-ELISA
Immobilized Human PD-1 Protein, Twin-Strep Tag (Cat. No. PD1-H5286) at 2 μg/mL (100 μL/well) can bind Human PD-L1, Fc Tag (Cat. No. PD1-H5258) with a linear range of 0.2-13 ng/mL (QC tested).
Protocol
Immobilized Human PD-L1, Fc Tag (Cat. No. PD1-H5258) at 5 μg/mL (100 μL/well) can bind Anti-PD-L1 MAb with a linear range of 0.2-2 ng/mL (Routinely tested).
Protocol
Immobilized Human B7-1, Mouse IgG2a Fc Tag (Cat. No. B71-H52A4) at 5 μg/mL (100 μL/well) can bind Human PD-L1, Fc Tag (Cat. No. PD1-H5258) with a linear range of 0.01-0.625 μg/mL (Routinely tested).
Protocol
Bioactivity-BLI
Loaded Human PD-1, His Tag (Cat. No. PD1-H5221) on HIS1K Biosensor, can bind Human PD-L1, Fc Tag (Cat. No. PD1-H5258) with an affinity constant of 38.9 nM as determined in BLI assay (ForteBio Octet Red96e) (Routinely tested).
Protocol
Loaded Human PD-L1, Fc Tag (Cat. No. PD1-H5258) on Protein A Biosensor, can bind Human B7-1, His Tag (Cat. No. B71-H5228) with an affinity constant of 18 μM as determined in BLI assay (ForteBio Octet Red96e) (Routinely tested).
Protocol
Loaded Human PD-L1, Fc Tag (Cat. No. PD1-H5258) on Protein A Biosensor, can bind Human PD-1, His Tag (Cat. No. PD1-H5221) with an affinity constant of 4.8 μM as determined in BLI assay (ForteBio Octet Red96e) (Routinely tested).
Protocol
Bioactivity-FACS
Flow Cytometry assay shows that Human PD-L1, Fc Tag (Cat. No. PD1-H5258) can bind to 293 cell overexpressing human PD-1. The concentration of PD-L1 used is 10 μg/mL (Routinely tested).
Protocol
FACS analysis shows that the binding of Human PD-L1, Fc Tag (Cat. No. PD1-H5258) to 293 overexpressing PD-1 was inhibited by increasing concentration of neutralizing Anti-PD-L1 antibody. The concentration of PD-L1 used is 10 μg/mL. The IC50 is 12.92 μg/mL (Routinely tested).
Protocol
Bioactivity-CELL BASE
Immobilized cell surface PD-1 (5x104 of cells per well) can bind Human PD-L1, Fc Tag (Cat. No. PD1-H5258) with an EC50 of 0.029 μg/mL (Routinely tested).
Protocol
Customer Reviews Writing Reviews
Y***n2023-04-22
LikesThe delivery is so fast and so good.we received the package in two days.The products are very good in quality.And the price is reasonable.Those are quality products.We trust them. They are useful in our experiments. The results come from the products are stable and reliable.So if someone wants to get something like this, they can buy the products of the company.You will be not disappointed.They are really good!
- 1***22019-10-12 LikesI used this protein for ELISA experiments. I coated it in a well plate, and then incubated it with the screened antibody molecules. I could get good binding data, and the repeatability and stability are good as well.
Background
Recent Advances
Drug Development Progress- English Name：
Programmed death-ligand 1
- Category：
- Approved Drugs：
12 Details
- Drugs in Clinical Trials：
176 Details
- Highest Development Stage：
Approved
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