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 >  Protein>DLL4 >DL4-H82E6

Biotinylated Human DLL4 Protein, His,Avitag™, premium grade

GMP version GMP-DL4H23 is now available for seamless transition.

分子别名(Synonym)

DLL4,Delta4

表达区间及表达系统(Source)

Biotinylated Human DLL4, His,Avitag, premium grade (DL4-H82E6) 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.

Request for sequence

蛋白结构(Molecular Characterization)

DLL4 Structure

This protein carries a polyhistidine tag at the C-terminus, followed by an Avi tag (Avitag™).

The protein has a calculated MW of 57.9 kDa. The protein migrates as 61 kDa±3 kDa when calibrated against Star Ribbon Pre-stained Protein Marker under reducing (R) condition (SDS-PAGE) due to glycosylation.

标记(Labeling)

Biotinylation of this product is performed using Avitag™ technology. Briefly, the single lysine residue in the Avitag is enzymatically labeled with biotin.

蛋白标记度(Biotinylation)

As determined by Quantative ELISA binding assay against streptavidin.

内毒素(Endotoxin)

Less than 0.01 EU per μg by the LAL method.

宿主蛋白残留(Host Cell Protein)

<0.5 ng/µg of protein tested by ELISA.

宿主核酸残留(Host Cell DNA)

<0.02 ng/μg of protein tested by qPCR.

无菌(Sterility)

Negative

支原体(Mycoplasma)

Negative.

纯度(Purity)

>95% 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:

  1. -20°C to -70°C for 24 months in lyophilized state;
  2. -70°C for 3 months under sterile conditions after reconstitution.
 

电泳(SDS-PAGE)

DLL4 SDS-PAGE

Biotinylated Human DLL4, His,Avitag, premium grade on SDS-PAGE under reducing (R) and non-reducing (NR) conditions. 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

DLL4 SEC-MALS

The purity of Biotinylated Human DLL4, His,Avitag, premium grade (Cat. No. DL4-H82E6) is more than 95% and the molecular weight of this protein is around 55-80 kDa verified by SEC-MALS.

Report

 

活性(Bioactivity)-Bioactivity CELL BASE

DLL4 CELL

Biotinylated Human DLL4, His,Avitag, premium grade (Cat. No. DL4-H82E6) enhances Human BMP-2 Protein, premium grade (Cat. No. BM2-H4117) induced alkaline phosphatase activity in ATDC5 cells. The EC50 for this effect is 1.579 μg/mL (Routinely tested).

Protocol

 

活性(Bioactivity)-ELISA

DLL4 ELISA

Immobilized Monoclonal Anti-Human DLL4 Antibody, Human IgG1 at 1 μg/mL (100 μL/well) can bind Biotinylated Human DLL4, His,Avitag, premium grade (Cat. No. DL4-H82E6) with a linear range of 0.1-2 ng/mL (Routinely tested).

Protocol

 

活性(Bioactivity)-SPR

DLL4 SPR

Biotinylated Human DLL4, His,Avitag, premium grade (Cat. No. DL4-H82E6) immobilized on CM5 Chip can bind Human NOTCH1, Fc Tag (Cat. No. NO1-H5255) with an affinity constant between 1.00 nM - 30.0 nM as determined in a SPR assay (Biacore 8K) (QC 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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