Product Details
Synonym
PD-L1, CD274, B7-H1, PDCD1L1, PDCD1LG1
Source
Human PD-L1 Protein, His Tag (PD1-H5223) is expressed from human 293 cells (HEK293). It contains AA Phe 19 - Arg 238 (Accession # Q9NZQ7).
Predicted N-terminus: Phe 19
Request for sequenceMolecular Characterization

Other Tags and Version Biotin & Other Labeled Version
This protein carries a polyhistidine tag at the C-terminus.
The protein has a calculated MW of 26.0 kDa. The protein migrates as 33-40 kDa when calibrated against Star Ribbon Pre-stained Protein Marker under reducing (R) condition (SDS-PAGE) due to glycosylation.
Endotoxin
Less than 0.0005 EU per μg by the LAL method / rFC method.
Purity
>95% as determined by SDS-PAGE.
>90% 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 12 months in lyophilized state;
- -70°C for 3 months under sterile conditions after reconstitution.
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Performance Data
SDS-PAGE

Human PD-L1 Protein, His Tag on SDS-PAGE under reducing (R) condition. The gel was stained with Coomassie Blue. The purity of the protein is greater than 95% (With Star Ribbon Pre-stained Protein Marker).
SEC-MALS

The purity of Human PD-L1 Protein, His Tag (Cat. No. PD1-H5223) is more than 90% and the molecular weight of this protein is around 30-45 kDa verified by SEC-MALS.
Report
Bioactivity-ELISA

Immobilized Human PD-L1 Protein, His Tag (Cat. No. PD1-H5223) at 1 μg/mL (100 μL/well) can bind Anti-Human PD-L1 MAb (Human lgG1) with a linear range of 0.1-3 ng/mL (QC tested).
Protocol
Bioactivity-BLI

Loaded Human PD-1 Protein, Fc Tag (Cat. No. PD1-H5257) on Protein A Biosensor, can bind Human PD-L1 Protein, His Tag (Cat. No. PD1-H5223) with an affinity constant of 3.4 μM as determined in BLI assay (ForteBio Octet Red96e) (QC tested).
Protocol
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Background
Recent Advances
- 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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