Name : VEGF121, Human
Product Concentration :
Background :
VEGF-A121 is one of five isoforms (121, 145, 165, 189, and 206) of VEGF protein, a cytokine belonging to the Platelet Differentiation Growth Factor (PDGF) family, and existing as a disulfide-linked homodimeric glycoprotein. In contrast to the longer isoforms, VEGF-A121 is more freely diffusible, and cannot bind to heparin. In vivo, VEGF is expressed predominantly in lung, heart, kidney, and adrenal glands, and the expression of VEGF is up-regulated by a number of growth factors, including PDGF, Fibroblast Growth Factor (FGF), Epidermal Growth Factor (EGF), and Tumor Necrosis Factor (TNF). VEGF signals via binding to two tyrosine kinase receptors: the Fms-like tyrosine kinase 1 (Flt-1) and the kinase domain receptor (KDR). VEGF is a specific mitogen and survival factor, contributing to abnormal angiogenesis and cancer development.
Biological Activity :
ED50 2.0 × 105 units/mg.
expression system :
E. coli
Tag :
Expressed with an N-terminal Met. VEGF121 (Pro28-Arg147)Accession # P15692-9
Protein Accession No. :
P15692-9
Synonyms :
Vascular Endothelial Growth Factor 121; VEGF-121; Vascular Permeability Factor; VPF
Molecular Weight :
~28.2 kDa, on SDS-PAGE under non-reducing conditions.
Purity :
> 95% as analyzed by SDS-PAGE> 95% as analyzed by HPLC
Product Concentration :
Lyophilized after extensive dialysis against PBS.
Storage and Stability :
Upon receiving, this product remains stable for up to 6 months at lower than -70°C. Upon reconstitution, the product should be stable for up to 1 week at 4°C or up to 3 months at -20°C. For long term storage it is recommended that a carrier protein (example 0.1% BSA) be added. Avoid repeated freeze-thaw cycles.
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