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分子别名（Synonym）
PDCD1, PD1, CD279, SLEB2
表达区间及表达系统（Source）
Biotinylated Human PD-1, Fc,Avitag (PD1-H82F1) is expressed from human 293 cells (HEK293). It contains AA Leu 25 - Gln 167 (Accession # Q15116-1).
Predicted N-terminus: Leu 25
Request for sequence蛋白结构（Molecular Characterization）
This protein carries a human IgG1 Fc tag at the C-terminus, followed by an Avi tag (Avitag™).
The protein has a calculated MW of 44.4 kDa. The protein migrates as 55-66 kDa when calibrated against Star Ribbon Pre-stained Protein Marker under reducing (R) condition (SDS-PAGE) due to glycosylation.
标记（Labeling）
Biotinylation of this product is performed using Avitag™ technology. Briefly, the single lysine residue in the Avitag is enzymatically labeled with biotin.
蛋白标记度（Protein Ratio）
Passed as determined by the HABA assay / binding ELISA.
纯度（Purity）
>95% as determined by SDS-PAGE.
>95% as determined by SEC-MALS.
制剂（Formulation）
Lyophilized from 0.22 μm filtered solution in PBS, pH7.4 with trehalose as protectant.
Contact us for customized product form or formulation.
重构方法（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.
存储（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.
质量管理控制体系（QMS）
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数据展示
电泳（SDS-PAGE）
Biotinylated Human PD-1, Fc,Avitag 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 Biotinylated Human PD-1, Fc,Avitag (Cat. No. PD1-H82F1) is more than 95% and the molecular weight of this protein is around 110-130 kDa verified by SEC-MALS.
Report
活性（Bioactivity）-ELISA
Immobilized Human PD-L1, Fc Tag (Cat. No. PD1-H5258) at 5 μg/mL (100 μL/well) can bind Biotinylated Human PD-1, Fc,Avitag (Cat. No. PD1-H82F1) with a linear range of 0.02-0.32 μg/mL (QC tested).
Protocol
Immobilized Nivolumab at 2 μg/mL (100 μL/well) can bind Biotinylated Human PD-1, Fc,Avitag (Cat. No. PD1-H82F1) with a linear range of 0.2-6 ng/mL (Routinely tested).
Protocol
Immobilized Biotinylated Human PD-1, Fc,Avitag (Cat. No. PD1-H82F1) at 1 μg/mL (100 μL/well) on streptavidin precoated (0.2 μg/well) plate, can bind Mouse PD-L2, His Tag (Cat. No. PD2-M52E3) with a linear range of 20-156 ng/mL (Routinely tested).
Protocol
Serial dilutions of nivolumab were added into Human PD-L1, Mouse IgG1 Fc Tag (Cat. No. PD1-H52A3): Biotinylated Human PD-1, Fc,Avitag (Cat. No. PD1-H82F1) binding reactions. The half maximal inhibitory concentration (IC50) is 0.3789 μg/mL (Routinely tested).
Protocol
Serial dilutions of nivolumab were added into Human PD-L2, Mouse IgG1 Fc Tag (Cat. No. PD2-H52A5): Biotinylated Human PD-1, Fc,Avitag (Cat. No. PD1-H82F1) binding reactions. The half maximal inhibitory concentration (IC50) is 0.2823 μg/mL (Routinely tested).
Protocol
Immobilized Cadonilimab at 1 μg/mL (100 μL/well) can bind Biotinylated Human PD-1, Fc,Avitag (Cat. No. PD1-H82F1) with a linear range of 0.1-4 ng/mL (Routinely tested).
Protocol
Immobilized Tebotelimab at 1 μg/mL (100 μL/well) can bind Biotinylated Human PD-1, Fc,Avitag (Cat. No. PD1-H82F1) with a linear range of 0.06-8 ng/mL (Routinely tested).
Protocol
Immobilized Human LAG-3, His Tag (Cat. No. LA3-H5222) at 5 μg/mL, add increasing concentrations of Tebotelimab (LAG-3 x PD-1 bispecific antibody) and then add Biotinylated Human PD-1, Fc,Avitag (Cat. No. PD1-H82F1) at 0.2 μg/mL. Detection was performed using HRP-conjugated Streptavidin (Acro, Cat. No. STN-NH913) with sensitivity of 26.00 ng/mL (Routinely tested).
Protocol
Immobilized Human CTLA-4, His Tag (Cat. No. CT4-H5229) at 5 μg/mL, add increasing concentrations of Cadonilimab (PD-1 x CTLA-4 bispecific antibody) and then add Biotinylated Human PD-1, Fc,Avitag (Cat. No. PD1-H82F1) at 0.2 μg/mL. Detection was performed using HRP-conjugated Streptavidin (Acro, Cat. No. STN-NH913) with sensitivity of 3.07 ng/mL (Routinely tested).
Protocol
Immobilized Human VEGF165, His Tag (Cat. No. VE5-H5248) at 2 μg/mL, add increasing concentrations of Ivonescimab and then add Biotinylated Human PD-1, Fc,Avitag (Cat. No. PD1-H82F1) at 2 μg/mL. Detection was performed using HRP-conjugated Streptavidin (Acro, Cat. No. STN-NH913) with sensitivity of 1.98 ng/mL (Routinely tested).
Protocol
活性（Bioactivity）-BLI
Loaded Biotinylated Human PD-1, Fc,Avitag (Cat. No. PD1-H82F1) on SA Biosensor, can bind Human PD-L1, His Tag (HPLC verified) (Cat. No. PD1-H5229) with an affinity constant of 2.5 μM as determined in BLI assay (ForteBio Octet Red96e) (Routinely tested).
Protocol
Loaded Biotinylated Human PD-1, Fc,Avitag (Cat. No. PD1-H82F1) on SA Biosensor, can bind Human PD-L2, His Tag (SPR verified) (Cat. No. PD2-H5220) with an affinity constant of 0.31 μM as determined in BLI assay (ForteBio Octet Red96e) (Routinely tested).
Protocol
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