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Recombinant Human B7-H1/PD-L1/CD274 Protein (RP00068)

Bioactivityvalidated

Publication (1) Datasheet

Overview

Product nameRecombinant Human B7-H1/PD-L1/CD274 Protein
Catalog No.RP00068
DescriptionRecombinant Human B7-H1/PD-L1/CD274 Protein is produced by HEK293 expression system. The target protein is expressed with sequence (Phe19-Thr239) of human PD-L1/B7-H1 (Accession #NP_054862.1) fused with a 6×His tag at the C-terminus.
Bio-Activity1.Measured by its binding ability in a functional ELISA. Immobilized Recombinant Human PD-L1 at 10 μg/mL (100 μL/well) can bind Recombinant Human PD-1 with a linear range of 0.25-1.02 μg/mL.
2.Measured by its binding ability in a functional ELISA.Immobilized PE anti-human CD274 (B7-H1, PD-L1) Antibody at 1μg/mL (25 μL/well) can bind Human CD274 with a linear range of 0.46-18ng/mL.
Purity> 97% by SDS-PAGE.
Endotoxin< 0.1 EU/μg of the protein by LAL method.
FormulationLyophilized from a 0.22 μm filtered solution of PBS, pH 7.4.Contact us for customized product form or formulation.
SpeciesHuman
Calculated MW26.14 kDa
This protein is an immune inhibitory receptor ligand that is expressed by hematopoietic and non-hematopoietic cells, such as T cells and B cells and various types of tumor cells. The protein is a type I transmembrane protein that has immunoglobulin V-like and C-like domains. Interaction of this ligand with its receptor inhibits T-cell activation and cytokine production. During infection or inflammation of normal tissue, this interaction is important for preventing autoimmunity by maintaining homeostasis of the immune response. In tumor microenvironments, this interaction provides an immune escape for tumor cells through cytotoxic T-cell inactivation.
SynonymB7-H; B7H1; PDL1; PD-L1; hPD-L1; PDCD1L1; PDCD1LG1; CD274; PDL1; B7H1; PD-L1; PDCD1L1; PDCD1LG1; B7-H; CD274 molecule
Expression HostHEK293 cells
TagC-His
Swiss-Prot
Gene ID
StorageStore at -20℃.Store the lyophilized protein at -20℃ to -80 ℃ up to 1 year from the date of receipt.
After reconstitution, the protein solution is stable at -20℃ for 3 months, at 2-8℃ for up to 1 week.
ReconstitutionCentrifuge the vial before opening. Reconstitute to a concentration of 0.1-0.5 mg/mL in sterile distilled water. Avoid vortex or vigorously pipetting the protein. For long term storage, it is recommended to add a carrier protein or stablizer (e.g. 0.1% BSA, 5% HSA, 10% FBS or 5% Trehalose), and aliquot the reconstituted protein solution to minimize free-thaw cycles.

* For research use only. Not for therapeutic or diagnostic purposes.

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