DLL4 Protein, Human, Recombinant (His)

Name: DLL4 Protein, Human, Recombinant (His)
Brand: TargetMol
SKU: TMPY-01321
Price: 48 USD
Availability: InStock
Rating: 5 (10 reviews)

(Synonyms: δ-like 4 (Drosophila), δ-like 4, hδ2, hdelta2, delta-like 4 (Drosophila), Delta-like 4) Copy Product Info

Synonyms: δ-like 4 (Drosophila), δ-like 4, hδ2, hdelta2, delta-like 4 (Drosophila), Delta-like 4

Catalog No. TMPY-01321 Copy Product Info

Purity: 98.6%

DLL4 Protein, Human, Recombinant (His) is expressed in HEK293 mammalian cells with His tag. The predicted molecular weight is 55.7 kDa and the accession number is Q9NR61.

Pack Size	Price	USA Stock	Global Stock
5 µg	$48	-	In Stock
10 µg	$75	-	In Stock
20 µg	$118	-	In Stock
50 µg	$229	-	In Stock
100 µg	$386	-	In Stock
200 µg	$682	7-10 days	7-10 days
500 µg	$1,430	7-10 days	7-10 days

For In stock only · Estimated delivery: USA Stock (1-2 days) Global Stock (5-7 days)

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For research use only—not for human use. No sales to individuals. Use as intended only.

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Purity:98.6%

Appearance:Lyophilized powder

Color:White

Resource Download

COA User Guide of Recombinant Proteins

Product Information

Bioactivity

Bioactivity	1. Measured by its ability to bind human Notch1 in a functional ELISA. 2. Measured by the ability of the immobilized protein to enhance BMP2-induced alkaline phosphatase activity in C3H10T1/2 mouse embryonic fibroblast cells. The ED50 for this effect is typically 2-10 µg/mL in the presence of 500 ng/mL recombinant human BMP2.
Description	DLL4 Protein, Human, Recombinant (His) is expressed in HEK293 mammalian cells with His tag. The predicted molecular weight is 55.7 kDa and the accession number is Q9NR61.
Species	Human
Expression System	HEK293 Cells
Tag	C-His
Accession Number	Q9NR61
Construction	A DNA sequence encoding the extracellular domain (Met 1-Pro 524) of human DLL4 (NP_061947.1) pro-protein was expressed, with a polyhistidine tag at the C-terminus. Predicted N terminal: Ser 27
Protein Purity	≥ 98 % as determined by SDS-PAGE. ≥ 95 % as determined by SEC-HPLC. ,
Endotoxin	< 1.0 EU/μg of the protein as determined by the LAL method.
Formulation	Lyophilized from a solution filtered through a 0.22 μm filter, containing PBS, pH 7.4. Typically, a mixture containing 5% to 8% trehalose, mannitol, and 0.01% Tween 80 is incorporated as a protective agent before lyophilization.
Reconstitution	Reconstituted with sterile deionized water to 0.17 mg/mL. Reconstitution conditions may vary depending on the lot.
Synonyms	δ-like 4 (Drosophila), δ-like 4, hδ2, hdelta2, delta-like 4 (Drosophila), Delta-like 4
Research Background	Delta-like protein 4 (DLL4, Delta4), a type I membrane-bound Notch ligand, is one of five known Notch ligands in mammals and interacts predominantly with Notch 1, which has a key role in vascular development. Recent studies yield substantial insights into the role of DLL4 in angiogenesis. DLL4 is induced by vascular endothelial growth factor (VEGF) and acts downstream of VEGF as a 'brake' on VEGF-induced vessel growth, forming an autoregulatory negative feedback loop inactivating VEGF. DLL4 is downstream of VEGF signaling and its activation triggers a negative feedback that restrains the effects of VEGF. Attenuation of DLL4/Notch signaling results in chaotic vascular network with excessive branching and sprouting. DLL4 is widely distributed in tissues other than vessels including many malignancies. Furthermore, the molecule is internalized on binding its receptor and often transported to the nucleus. In pathological conditions, such as cancer, DLL4 is up-regulated strongly in the tumour vasculature. Blockade of DLL4-mediated Notch signaling strikingly increases nonproductive angiogenesis, but significantly inhibits tumor growth in preclinical mouse models. In preclinical studies, blocking of DLL4/Notch signaling is associated with a paradoxical increase in tumor vessel density, yet causes marked growth inhibition due to functionally defective vasculature. Thus, DLL4 blockade holds promise as an additional strategy for angiogenesis-based cancer therapy.

Chemical Properties

Molecular Weight

55.7 kDa (predicted); 55-70 kDa (reducing condition, due to glycosylation)

Storage & Solubility Information

Shipping	In general, lyophilized powders are shipped with blue ice, while solutions are shipped with dry ice.
Storage	It is recommended to store recombinant proteins at -20°C to -80°C for future use. Lyophilized powders can be stably stored for over 12 months, while liquid products can be stored for 6-12 months at -80°C. For reconstituted protein solutions, the solution can be stored at -20°C to -80°C for at least 3 months. Please avoid multiple freeze-thaw cycles and store products in aliquots.