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分子别名（Synonym）
DLL4, Delta4
表达区间及表达系统（Source）
Human DLL4 Protein, Fc Tag (DL4-H5259) is expressed from human 293 cells (HEK293). It contains AA Ser 27 - Pro 524 (Accession # NP_061947.1).
Predicted N-terminus: Ser 27
Request for sequence蛋白结构（Molecular Characterization）
Other Tags and Version Biotin & Other Labeled Version
This protein carries a human IgG1 Fc tag at the C-terminus.
The protein has a calculated MW of 80.9 kDa. The protein migrates as 95-100 kDa when calibrated against Star Ribbon Pre-stained Protein Marker under reducing (R) condition (SDS-PAGE) due to glycosylation.
内毒素（Endotoxin）
Less than 0.01 EU per μg by the LAL method / rFC method.
无菌（Sterility）
Negative
纯度（Purity）
>95% as determined by SDS-PAGE.
制剂（Formulation）
Lyophilized from 0.22 μm filtered solution in 100 mM Glycine, 150 mM NaCl, 25 mM Arginine, 50 mM Tris, pH7.5 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）
Human DLL4 Protein, Fc Tag 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 Human DLL4 Protein, Fc Tag (Cat. No. DL4-H5259) is more than 85% and the molecular weight of this protein is around 165-210 kDa verified by SEC-MALS.
Report
活性（Bioactivity）-ELISA
Immobilized Human DLL4 Protein, Fc Tag (Cat. No. DL4-H5259) at 1 μg/mL (100 μL/well) can bind Monoclonal Anti-Human DLL4 Antibody, Human IgG1 with a linear range of 1-16 ng/mL (QC tested).
Protocol
Immobilized Mouse NOTCH1, His Tag (Cat. No. NO1-M52H8) at 2 μg/mL (100 μL/well) can bind Human DLL4 Protein, Fc Tag (Cat. No. DL4-H5259) with a linear range of 0.5-8 ng/mL (Routinely tested).
Protocol
活性（Bioactivity）-SPR
Human DLL4 Protein, Fc Tag (Cat. No. DL4-H5259) captured on Protein A Chip can bind Human NOTCH1 Protein, His Tag, premium grade (Cat. No. NO1-H52H3) with an affinity constant between 1.00 nM - 150 nM as determined in a SPR assay (Biacore 8K) (QC tested).
Protocol
活性（Bioactivity）-CELL BASE
Human DLL4 Protein, Fc Tag (Cat. No. DL4-H5259) stimulates Human Notch1 (Luc) HeLa Reporter Cell. The typical EC50 for this effect is 874 ng/mL (QC tested).
Protocol
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