Human DLL4 Protein, Fc Tag, premium grade (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
It is produced under our rigorous quality control system that incorporates a comprehensive set of tests including sterility and endotoxin tests. Product performance is carefully validated and tested for compatibility for cell culture use or any other applications in the early preclinical stage. When ready to transition into later clinical phases, we also offer a custom GMP protein service that tailors to your needs. We will work with you to customize and develop a GMP-grade product in accordance with your requests that also meets the requirements for raw and ancillary materials use in cell manufacturing of cell-based therapies.
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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 under reducing (R) condition (SDS-PAGE) due to glycosylation.
Less than 0.01 EU per μg by the LAL method.
The sterility testing was performed by membrane filtration method.
>95% as determined by SDS-PAGE.
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.
Please see Certificate of Analysis for specific instructions.
For best performance, we strongly recommend you to follow the reconstitution protocol provided in the CoA.
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.
Human DLL4 Protein, Fc Tag, premium grade on SDS-PAGE under reducing (R) condition. The gel was stained with Coomassie Blue. The purity of the protein is greater than 95%.
Immobilized Human DLL4 Protein, Fc Tag, premium grade (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).
Immobilized Mouse NOTCH1, His Tag (Cat. No. NO1-M52H8) at 2 μg/mL (100 μL/well) can bind Human DLL4 Protein, Fc Tag, premium grade (Cat. No. DL4-H5259) with a linear range of 0.5-8 ng/mL (Routinely tested).
Delta-like protein 4 (DLL4) is also known as Drosophila Delta homolog 4 (Delta4), which contains one DSL domain and eight EGF-like domains. DLL4 is expressed in vascular endothelium. DLL4 is involved in the Notch signaling pathway as Notch ligand, which can activates NOTCH1 and NOTCH4. DLL4 is involved in angiogenesis and negatively regulates endothelial cell proliferation and migration and angiogenic sprouting. DLL4 can bind to Notch-1 and Notch-4.