< 1.0 EU per μg of the protein as determined by the LAL method
Activity
1. Measured by its binding ability in a functional ELISA. Immobilized human VEGF121b at 10μg/mL (100μL/well) can bind human VEGFR2-Fc, the EC50 of human VEGFR2-Fc is 0.06-0.1 μg/mL.
2. Measured in a cell proliferation assay using human umbilical vein endothelial cells (HUVEC). The ED50 for this effect is typically 1-5ng/mL.
Protein Construction
A DNA sequence encoding the human VEGF 121 isoform b (P15692-9) (Met1-Asp147,with last 6 amino acids switch from CDKPRR to SLTRKD ) was expressed.
Accession#
P15692-9
Expressed Host
HEK293 Cells
Species
Human
Predicted N Terminal
Ala 27
Molecule Mass
The recombinant human VEGF consists of 121 amino acids and has a predicted molecular mass of 14 kDa. The apparent molecular mass of the human VEGF121b is approximately 20 and 16 kDa in SDS-PAGE under reducing conditions due to glycosylation.
Formulation
Lyophilized from sterile PBS, pH 7.4.Please contact us for any concerns or special requirements. Normally 5 % - 8 % trehalose, mannitol and 0.01% Tween80 are added as protectants before lyophilization.
Shipping
In general, recombinant proteins are provided as lyophilized powder which are shipped at ambient temperature.Bulk packages of recombinant proteins are provided as frozen liquid. They are shipped out with blue ice unless customers require otherwise.
Stability & Storage
Samples are stable for up to twelve months from date of receipt at -20℃ to -80℃. Store it under sterile conditions at -20℃ to -80℃. It is recommended that the protein be aliquoted for optimal storage. Avoid repeated freeze-thaw cycles.
Reconstitution
A hardcopy of datasheet with reconstitution instructions is sent along with the products. Please refer to it for detailed information.
Related Pathways
VEGF Signaling Pathway
All of our services and products are intended for preclinical research use only and cannot be used to diagnose, treat or manage patients.