Source

Biotinylated Human VEGF121 Protein is expressed from HEK293 with His tag and Avi tag at the C-terminal. It contains Ala27-Arg147.[Accession | P15692-9]

Molecular Weight

The protein has a predicted MW of 17 kDa. Due to glycosylation, the protein migrates to 18 kDa and 22-25 kDa under reduced (R) condition, 30 kDa and 32-40 kDa under Non reducing (N) condition based on Tris-Bis PAGE result.

Endotoxin

Less than 1EU per μg by the LAL method.

Purity

> 95% as determined by Tris-Bis PAGE 

Activity

ELISA Data: Immobilized Human VEGF R1, His Tag at 2μg/ml (100μl/well) on the plate. Dose response curve for Biotinylated Human VEGF121, His Tag with the EC50 of 36.5ng/ml determined by ELISA. 

Formulation

Lyophilized from 0.22μm filtered solution in PBS (pH 7.4). Normally 8% trehalose is added as protectant before lyophilization.

Reconstitution

Centrifuge tubes before opening. Reconstituting to a concentration more than 100 μg/ml is recommended. Dissolve the lyophilized protein in distilled water.