Recombinant Mouse VEGFR2/Flk-1 His-tag Protein, CF

Catalog #: 10095-KD Datasheet

Catalog #	Availability	Size / Price	Qty
10095-KD-050

Recombinant Mouse VEGFR2/Flk-1 His-tag Protein Binding Activity

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All VEGFR2/KDR/Flk-1 Proteins and Enzymes

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Summary Product Datasheets Carrier Free Data Images Reconstitution Calculator Background Related Research Areas

Recombinant Mouse VEGFR2/Flk-1 His-tag Protein, CF Summary

Product Specifications

Purity

>95%, 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.

Activity

Measured by its binding ability in a functional ELISA. When Recombinant Mouse VEGFR2/KDR/Flk-1 His-tag (Catalog # 10095-KD) is immobilized at 0.5 μg/mL, 100 μL/well, the concentration of Recombinant Mouse VEGF 164 (Catalog # 493-MV) that produces 50% of the optimal binding response is 0.015-0.12 μg/mL.

Source

Mouse myeloma cell line, NS0-derived mouse VEGFR2/KDR/Flk-1 protein
Ala20-Glu762, with a C-terminal 6-His tag

Accession #

P35918

N-terminal Sequence
Analysis

Ala20

Structure / Form

Monomer

Predicted Molecular Mass

844 kDa

SDS-PAGE

120-132 kDa, reducing conditions

Product Datasheets

10095-KD

Product Datasheet

Carrier Free

What does CF mean?

CF stands for Carrier Free (CF). We typically add Bovine Serum Albumin (BSA) as a carrier protein to our recombinant proteins. Adding a carrier protein enhances protein stability, increases shelf-life, and allows the recombinant protein to be stored at a more dilute concentration. The carrier free version does not contain BSA.

What formulation is right for me?

In general, we advise purchasing the recombinant protein with BSA for use in cell or tissue culture, or as an ELISA standard. In contrast, the carrier free protein is recommended for applications, in which the presence of BSA could interfere.

10095-KD

Formulation	Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose.
Reconstitution	Reconstitute at 500 μg/mL in PBS.
Shipping	The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below.
Stability & Storage:	Use a manual defrost freezer and avoid repeated freeze-thaw cycles. 12 months from date of receipt, -20 to -70 °C as supplied. 1 month, 2 to 8 °C under sterile conditions after reconstitution. 3 months, -20 to -70 °C under sterile conditions after reconstitution.

Scientific Data

Binding Activity

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When Recombinant Mouse VEGFR2/KDR/Flk-1 (Catalog # 10095-KD) is immobilized at 0.5 μg/mL, 100 μL/well, Recombinant Mouse VEGF 164 (Catalog # 493-MV) binds with an ED₅₀ of 0.015-0.12 μg/mL.

SDS-PAGE

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2 μg/lane of Recombinant Mouse VEGFR2/KDR/Flk‑1 His-tag (Catalog # 10095-KD) was resolved with SDS-PAGE under reducing (R) and non-reducing (NR) conditions and visualized by Coomassie® Blue staining, showing bands at 120-132 kDa.

Background: VEGFR2/KDR/Flk-1

VEGFR2 (KDR/Flk-1), VEGFR1 (Flt-1) and VEGFR3 (Flt-4) belong to the class III subfamily of receptor tyrosine kinases (RTKs). All three receptors contain seven immunoglobulin-like repeats in their extracellular domains and a tyrosine kinase domains in their intracellular regions. The expression of VEGFR1, 2, and 3 is almost exclusively restricted to the endothelial cells. These receptors are likely to play essential roles in vasculogenesis and angiogenesis. Mature mouse VEGFR2 is composed of a 743aa residue extracellular domain, a 21 aa residue transmembrane domain and a 584 aa residue cytoplasmic domain. The mature mouse VEGFR2 shares 80% and 93% sequence identity to human and rat VEGFR2. In contrast to VEGFR1 which binds both PlGF and VEGF with high affinity, VEGFR2 binds VEGF but not PlGF with high affinity. The recombinant soluble VEGFR2 binds VEGF with high affinity and is a potent VEGF antagonist (1, 2).

References

Ferra, N. and R. Davis-Smyth (1997) Endocrine Reviews 18:4.
Achen, M.G. et al. (1998) Proc. Natl. Acad. Sci. USA. 95:548.

Long Name

Vascular Endothelial Growth Factor Receptor 2

Entrez Gene IDs

3791 (Human); 16542 (Mouse)

Alternate Names

CD309 antigen; CD309; EC 2.7.10; EC 2.7.10.1; Fetal liver kinase 1; fetal liver kinase-1; Flk1; Flk-1; FLK1tyrosine kinase growth factor receptor; KDR; kinase insert domain receptor (a type III receptor tyrosine kinase); Kinase insert domain receptor; KRD1; Ly73; Protein-tyrosine kinase receptor flk-1; soluble VEGFR2; vascular endothelial growth factor receptor 2; VEGF R2; VEGFR; VEGFR2; VEGFR-2