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分子别名（Synonym）
PD-L1,CD274,B7-H1,PDCD1L1,PDCD1LG1
表达区间及表达系统（Source）
PE-Labeled Human PD-L1 (19-238) Protein, His Tag (PD1-HP2H3) is expressed from human 293 cells (HEK293). It contains AA Phe 19 - Arg 238 (Accession # Q9NZQ7-1).
Predicted N-terminus: Phe 19
蛋白结构（Molecular Characterization）
This protein carries a polyhistidine tag at the C-terminus.
The protein has a calculated MW of 39.5 kDa.
偶联（Conjugate）
PE
Excitation Wavelength: 488 nm / 561 nm
Emission Wavelength: 575 nm
内毒素（Endotoxin）
Less than 1.0 EU per μg by the LAL method.
纯度（Purity）
>90% as determined by SDS-PAGE.
制剂（Formulation）
Lyophilized from 0.22 μm filtered solution in PBS, 0.2% BSA, 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 protect from light and 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）
数据展示
CAR阳性表达率检测（Evaluation of CAR expression）
FACS analysis of PE-Labeled Human PD-L1 (19-238) Protein binding cell surface Human PD-1
5e5 of HEK293/Human PD-1 Stable Cell Line were stained with 100 μL of 1:10 dilution (10 μL stock solution in 100 μL FACS buffer) of PE-Labeled Human PD-L1 (19-238) Protein, His Tag (Cat. No. PD1-HP2H3) and negative control protein respectively (Fig. C and B), and non-transfected 293 cells were used as a control (Fig. A). PE signal was used to evaluate the binding activity (QC tested).
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