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Human DLL4 Protein, His Tag, premium grade

分子别名(Synonym)

DLL4,Delta4

表达区间及表达系统(Source)

Human DLL4, His Tag, premium grade (DL4-H5227) is expressed from human 293 cells (HEK293). It contains AA Ser 27 - Pro 524 (Accession # Q9NR61-1 ).

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.

Request for sequence

蛋白结构(Molecular Characterization)

DLL4 Structure

This protein carries a polyhistidine tag at the C-terminus

The protein has a calculated MW of 56.2 kDa. The protein migrates as 55-65 kDa under reducing (R) condition (SDS-PAGE) due to glycosylation.

内毒素(Endotoxin)

Less than 0.01 EU per μg by the LAL method.

无菌(Sterility)

The sterility testing was performed by membrane filtration method.

支原体(Mycoplasma)

Negative.

纯度(Purity)

>95% as determined by SDS-PAGE.

>90% 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:

  1. -20°C to -70°C for 12 months in lyophilized state;
  2. -70°C for 3 months under sterile conditions after reconstitution.
 

电泳(SDS-PAGE)

DLL4 SDS-PAGE

Human DLL4, His 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%.

SEC-MALS

DLL4 SEC-MALS

The purity of Human DLL4, His Tag, premium grade (Cat. No. DL4-H5227) is more than 90% and the molecular weight of this protein is around 56-76 kDa verified by SEC-MALS.

Report

 

活性(Bioactivity)-ELISA

DLL4 ELISA

Immobilized Human DLL4, His Tag, premium grade (Cat. No. DL4-H5227) at 1 μg/mL (100 μL/well) can bind Monoclonal Anti-Human DLL4 Antibody, Human IgG1 with a linear range of 0.1-4 ng/mL (QC tested).

Protocol

DLL4 ELISA

Immobilized Human NOTCH1, Fc Tag (Cat. No. NO1-H5255) at 5 μg/mL (100 μL/well) can bind Human DLL4, His Tag, premium grade (Cat. No. DL4-H5227) with a linear range of 0.078-1.25 μg/mL (Routinely tested).

Protocol

 

背景(Background)

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.

 

前沿进展

 
 
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DLL4靶点信息
英文全称:Delta-like protein 4
中文全称:δ样蛋白-4
种类:Homo sapiens
上市药物数量:0详情
临床药物数量:3详情
最高研发阶段:临床三期
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