Recombinant Human DLL4 Avi-tag His-tag Protein, CF

R&D Systems, part of Bio-Techne | Catalog # AVI1506

R&D Systems, part of Bio-Techne
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AVI1506-050
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Key Product Details

  • R&D Systems CHO-derived Recombinant Human DLL4 Avi-tag His-tag Protein (AVI1506)
  • Quality control testing to verify active proteins with lot specific assays by in-house scientists
  • All R&D Systems proteins are covered with a 100% guarantee

Source

CHO

Accession #

Q9NR61.1

Structure / Form

Biotinylated via Avi-tag

Conjugate

Biotin

Applications

Bioactivity

View all DLL4 Proteins and Enzymes »

Product Specifications

Source

Chinese Hamster Ovary cell line, CHO-derived human DLL4 protein
Human DLL4
(Ser27-Pro524)
Accession # Q9NR61.1		 Avi-tag 6-His tag
N-terminus C-terminus

Purity

>90%, by SDS-PAGE visualized with Silver Staining and quantitative densitometry by Coomassie® Blue Staining.

Endotoxin Level

<0.10 EU per 1 μg of the protein by the LAL method.

N-terminal Sequence Analysis

Ser27

Predicted Molecular Mass

58 kDa

SDS-PAGE

63-75 kDa, under reducing conditions.

Activity

Measured by its binding ability in a functional ELISA.
Biotinylated Recombinant Human DLL4 Avi-tag His-tag (Catalog # AVI1506) binds to Recombinant Human Notch-1 Fc Chimera (Catalog # 3647-TK) with an ED50 of 0.600-7.20 μg/mL.

Scientific Data Images for Recombinant Human DLL4 Avi-tag His-tag Protein, CF

Biotinylated Recombinant Human DLL4 Avi-tag His-tag Protein Binding Activity.

In a functional ELISA, Biotinylated Recombinant Human DLL4 Avi-tag His-tag Protein (Catalog # AVI1506) binds to Recombinant Human Notch‑1 Fc Chimera (3647-TK) with an ED50 of 0.600-7.20 μg/mL.

Biotinylated Recombinant Human DLL4 Avi-tag His-tag Protein SDS-PAGE.

2 μg/lane of Biotinylated Recombinant Human DLL4 Avi-tag His-tag Protein (Catalog # AVI1506) was resolved with SDS-PAGE under reducing (R) condition and visualized by Coomassie® Blue staining, showing bands at 63-75 kDa.

Formulation, Preparation and Storage

AVI1506
Formulation Supplied as a 0.2 μm filtered solution in PBS with Trehalose.
Shipping The product is shipped with dry ice or equivalent. Upon receipt, store it immediately at the temperature recommended below.
Stability & Storage Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
  • 6 months from date of receipt, -70 °C as supplied.
  • 1 month, 2 to 8 °C under sterile conditions after opening.
  • 3 months, -20 to -70 °C under sterile conditions after opening.

Background: DLL4

Delta-like protein 4 (DLL4) is a type I membrane protein belonging to the Delta/Serrate/Lag2 (DSL) family of Notch ligands (1). Notch signaling is an evolutionarily conserved pathway that controls cell fate and is required in multiple developmental processes including vascular development, hematopoiesis, somatogenesis, myogenesis, and neurogenesis (2-4). Dysregulation in the Notch pathway is associated with various human diseases. In mammals, four Notch homologs (Notch 1 to 4) and five ligands (DLL 1, 3 and 4, Jagged 1 and 2) have been identified. Notch ligands are transmembrane proteins with a DSL motif necessary for Notch binding, tandem EGF repeats, a transmembrane region and a short intracellular domain (ICD). Notch ligands are categorized into two subfamilies based on the presence of an extracellular cysteine-rich domain and insertions that interrupt some EGF repeats in the Jagged but not the Delta ligand family. Interactions of Notch receptors with their ligands results in reciprocal regulated intramembrane proteolysis (RIP) (4). RIP is a mechanism for transmembrane signal transduction that involves the sequential processing by a disintegrin metalloprotease (ADAM) and then by presenilin/ gamma secretase, resulting in shedding of the extracellular domains and the generation of the soluble ICD signaling fragments, respectively. The Notch ICD translocates to the nucleus and interacts with transcriptional coactivators, resulting in the transcription of target genes. The ICDs of the Notch ligands have also been shown to translocate to the nucleus where they may have a signaling function (5, 6). DLL4 is expressed highly and selectively within the arterial endothelium and has been shown to function as a ligand for Notch 1 and Notch 4. Human and mouse DLL4 share 86% amino acid sequence identity (1). Our Avi-tag Biotinylated Recombinant Human DLL4features biotinylation at a single site contained within the Avi-tag, a unique 15 amino acid peptide. Protein orientation will be uniform when bound to streptavidin-coated surface due to the precise control of biotinylation and the rest of the protein is unchanged so there is no interference in the protein's bioactivity.

References

  1. Shutter, J.R. et al. (2000) Genes Dev. 14:1313.
  2. Iso, Tatsuya et al. (2002) Arterioscler. Thromb. Vasc. Biol. 23:543.
  3. Walker, L. et al. (2001) Stem Cells 19:543.
  4. Baron, M. (2002) Semin. Cell Dev. Biol. 14:113.
  5. Ikeuchi, T. and S.S. Sisodia (2003) J. Biol. Chem. 278:7751.
  6. Bland, C.E. et al. (2003) J. Biol. Chem. 278:13607.

Long Name

Delta-like 4

Alternate Names

delta 4, Delta 4 precursor, delta ligand 4, delta4, delta-like 4 (Drosophila), delta-like 4 homolog, delta-like 4 homolog (Drosophila), delta-like 4 protein, delta-like protein 4, Drosophila Delta homolog 4, hdelta2, MGC126344, notch ligand delta-2, notch ligand DLL4

Entrez Gene IDs

54567 (Human); 54485 (Mouse); 100152163 (Porcine)

Gene Symbol

DLL4

UniProt

Q9NR61.1

Additional DLL4 Products

Product Documents for Recombinant Human DLL4 Avi-tag His-tag Protein, CF

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Certificate of Analysis

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Product Specific Notices for Recombinant Human DLL4 Avi-tag His-tag Protein, CF

For research use only

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