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Recombinant Human PD-L1/B7-H1/CD274 Protein (Fc Tag)(Active)– MSE Supplies LLC

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Recombinant Human PD-L1/B7-H1/CD274 Protein (Fc Tag)(Active)

SKU: PKSH031887-100

  • $ 60395
  • Save $ 6700



Recombinant Human PD-L1/B7-H1/CD274 Protein (Fc Tag)(Active)

 

SKU # PKSH031887
Expression Host HEK293 Cells

 

 

Description

Synonyms B7 homolog 1, B7-H1, B7H1, CD274, PD-L1, PDCD1 ligand 1, PDCD1L1, PDCD1LG1, PDL1, Programmed Cell Death 1 Ligand 1, Programmed death ligand 1
Species Human
Expression Host HEK293 Cells
Sequence Met 1-Thr 239
Accession NP_054862.1
Calculated Molecular Weight 52.0 kDa
Observed Molecular Weight 65-70 kDa
Tag C-hFc
Bio-activity Immobilized human PD-1 at 10 μg/ml (100 μl/well) can bind recombinant human B7-H1 / PD-L1 / Fc chimera with a linear range of 0.02-0.4 μg/ml.
  

 

Properties

Purity > 95 % as determined by reducing SDS-PAGE.
Endotoxin < 1.0 EU per μg of the protein as determined by the LAL method.
Storage Generally, lyophilized proteins are stable for up to 12 months when stored at -20 to -80℃. Reconstituted protein solution can be stored at 4-8℃ for 2-7 days. Aliquots of reconstituted samples are stable at < -20℃ for 3 months.
Shipping This product is provided as lyophilized powder which is shipped with ice packs.
Formulation Lyophilized from sterile PBS, pH 7.4
Normally 5% - 8% trehalose, mannitol and 0.01% Tween 80 are added as protectants before lyophilization.
Please refer to the specific buffer information in the printed manual.
Reconstitution Please refer to the printed manual for detailed information.



Background

Programmed death-1 ligand-1 (PD-L1; CD274; B7-H1) has been identified as the ligand for the immunoinhibitory receptor programmed death-1(PD1/PDCD1) and has been demonstrated to play a role in the regulation of immune responses and peripheral tolerance. PD-L1/B7-H1 is a member of the growing B7 family of immune molecules and this protein contains one V-like and one C-like Ig domain within the extracellular domain; and together with PD-L2; are two ligands for PD1 which belongs to the CD28/CTLA4 family expressed on activated lymphoid cells. By binding to PD1 on activated T-cells and B-cells; PD-L1 may inhibit ongoing T-cell responses by inducing apoptosis and arresting cell-cycle progression. Accordingly; it leads to growth of immunogenic tumor growth by increasing apoptosis of antigen specific T cells and may contribute to immune evasion by cancers. PD-L1 thus is regarded as promising therapeutic target for human autoimmune disease and malignant cancers.