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Your Position: Home > Immune Checkpoint Proteins > PD-L1 > Human PDL1 /CD274 Protein

Human PD-L1 / B7-H1 Protein (HPLC-verified)

  • Synonym
    PD-L1,CD274,B7-H1,PDCD1L1,PDCD1LG1
  • Source
    Human PD-L1, His Tag (HPLC-verified) (PD1-H5229) is expressed from human 293 cells (HEK293). It contains AA Phe 19 - Arg 238 (Accession # NP_054862.1 ).
    Predicted N-terminus: Phe 19
  • Molecular Characterization
    PD-L1(Phe 19 - Arg 238) NP_054862.1

    This protein carries a polyhistidine tag at the C-terminus.

    The protein has a calculated MW of 26 kDa. The protein migrates as 35-42 kDa under reducing (R) condition (SDS-PAGE) due to glycosylation.

  • Endotoxin
    Less than 1.0 EU per μg by the LAL method.
  • Purity

    >98% as determined by SDS-PAGE.

    >90% as determined by SEC-HPLC.

  • Formulation

    Lyophilized from 0.22 μm filtered solution in PBS, pH7.4. Normally trehalose is added as protectant before lyophilization.

    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.

    No activity loss was observed after storage at:

    1. 4-8°C for 12 months in lyophilized state;
    2. -70°C for 3 months under sterile conditions after reconstitution.
SDS-PAGE
Human PD-L1, His Tag (HPLC-verified) (Cat. No. PD1-H5229) SDS-PAGE gel

Human PD-L1, His Tag (HPLC-verified) on SDS-PAGE under reducing (R) condition. The gel was stained overnight with Coomassie Blue. The purity of the protein is greater than 98%.

SEC-HPLC
Human PD-L1, His Tag (HPLC-verified) (Cat. No. ) HPLC images

The purity of Human PD-L1, His Tag (HPLC-verified)(Cat.# PD1-H5229) was greater than 90% as determined by SEC-HPLC.

Bioactivity-ELISA
Human PD-L1, His Tag (HPLC-verified)Human PD-L1, His Tag (HPLC-verified) (Cat. No. PD1-H5229) ELISA bioactivity

Immobilized Human PD-L1, His Tag (Cat. No. PD1-H5229) at 5 μg/mL (100 μL/well) can bind Human PD-1, Fc Tag (Cat. No. PD1-H5257) with a linear range of 1.25-20 μg/mL (QC tested).

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