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| Catalog No. | Product Name | Size | List Price (US$) | Quantity |
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Conditions of optimal FLT1 Enzyme should be determined experimentally by the investigator.
Price/availability/specifications subject to change without notice. Unless otherwise indicated, our catalog and customized products are for research use only and not intended for human or animal diagnostic or therapeutic use.
Phone: 1-617-401-8149
Fax: 1-617-606-5019
Email: message@sydlabs.com
Or leave a message with a formal purchase
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Introduction
Endothelial cells express three different vascular endothelial growth factor (VEGF) receptors, belonging to the family of receptor tyrosine kinases (RTKs). They are named VEGFR-1 (Flt-1), VEGFR-2 (KDR/Flk-1), VEGFR-3 (Flt-4). Their expression is almost exclusively restricted to endothelial cells, but VEGFR-1 can also be found on monocytes, dendritic cells and on trophoblast cells. The flt-1 gene was first described in 1990. The receptor contains seven immunoglobulin-like extracellular domains, a single transmembrane region and an intracellular splited tyrosine kinase domain. Compared to VEGFR-2 the Flt-1 receptor has a higher affinity for VEGF but a weaker signaling activity. VEGFR-1 thus leads not to proliferation of endothelial cells, but mediates signals for differentiation. Interestingly a naturally occuring soluble variant of VEGFR-1 (sVEGFR-1) was found in HUVE supernatants in 1996, which is generated by alternative splicing of the flt-1 mRNA. The biological functions of sVEGFR-1 still are not clear, but it seems to be an endogenous regulator of angiogenesis, binding VEGF with the same affinity as the full-length receptor.
BP000992-PKA-240: Recombinant Human VEGFR1
Source: Insect Cells-derived.
A monomeric, glycosylated, polypeptide containing 688 amino acids and having a molecular mass of 96 kDa.
The activity of FLT1 was determined by its ability to abolish the binding of iodinated VEGF to solid surfaces or cell surface receptors. The ED50 for this effect is typically 10 ng/ml, corresponding to a specific activity of 100,000 IU/mg.
Purity > 90%, by RP-HPLC and SDS-PAGE.
Formulation: FLT1 was lyophilized from a concentrated (1 ug/ml) sterile solution containing 1x PBS.
Reconstitution: It is recommended to reconstitute the lyophilized FLT1 in sterile water not less than 100?/ml, which can then be further diluted to other aqueous solutions.
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.
Other FLT1 Enzymes:
Recombinant Human VEGFR1, His Tag
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