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分子别名（Synonym）
OX40L,TNFSF4,CD252,Glycoprotein Gp34,TXGP1,CD134 ligand,CD134L
表达区间及表达系统（Source）
Human OX40 Ligand Protein, His Tag (OXL-H52Q8) is expressed from human 293 cells (HEK293). It contains AA Gln 51 - Leu 183 (Accession # NP_003317).
Predicted N-terminus: His
Request for sequence蛋白结构（Molecular Characterization）
This protein carries a polyhistidine tag at the N-terminus.
The protein has a calculated MW of 16.9 kDa. The protein migrates as 25-30 kDa when calibrated against Star Ribbon Pre-stained Protein Marker under reducing (R) condition (SDS-PAGE) due to glycosylation.
偶联（Conjugate）
Unconjugated
内毒素（Endotoxin）
Less than 1.0 EU per μg by the LAL method.
纯度（Purity）
90% 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）
产品展示
电泳（SDS-PAGE）
Human OX40 Ligand Protein, His Tag on SDS-PAGE under reducing (R) condition. The gel was stained with Coomassie Blue. The purity of the protein is greater than 90% (With Star Ribbon Pre-stained Protein Marker).
SEC-MALS
The purity of Human OX40 Ligand Protein, His Tag (Cat. No. OXL-H52Q8) is more than 95% and the molecular weight of this protein is around 60-80 kDa verified by SEC-MALS.
Report
活性（Bioactivity）-ELISA
Immobilized Human OX40 Ligand Protein, His Tag (Cat. No. OXL-H52Q8) at 2 μg/mL (100 μL/well) can bind Human OX40, Fc Tag (Cat. No. OX0-H5255) with a linear range of 1-8 ng/mL (QC tested).
Protocol
Immobilized Human OX40 Ligand Protein, His Tag (Cat. No. OXL-H52Q8) at 2 μg/mL (100 μL/well) can bind Biotinylated Human OX40, Fc,Avitag (Cat. No. OX0-H82F7) with a linear range of 10-78 ng/mL (Routinely tested).
Protocol
活性（Bioactivity）-BLI
Loaded Biotinylated Human OX40, Avitag,His Tag (Cat. No. TN4-H82E4) on SA Biosensor, can bind Human OX40 Ligand Protein, His Tag (Cat. No. OXL-H52Q8) with an affinity constant of 0.127 nM as determined in BLI assay (ForteBio Octet Red96e) (Routinely tested).
Protocol
Loaded Human OX40 Ligand Protein, His Tag (Cat. No. OXL-H52Q8) on AR2G Biosensor, can bind Human OX40, His Tag (Cat. No. OX0-H5224) with an affinity constant of 0.15 μM as determined in BLI assay (ForteBio Octet Red96e) (Routinely tested).
Protocol
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