- Predicted molecular weight: 20.6 kDa
- No endotoxins, TAGS, and carrier-free
- Naturally folded and post-translationally modified
IBI recombinant proteins are expressed inPichia pastoris(yeast) system which provides many advantages overE. colisystems. Yeast systems promote proper protein folding and post-translational modifications for greater bio-activity. The recombinant proteins are endotoxin free and are purified without HIS-TAGS or any other TAG. IBI’s yeast expression system has proven to produce more active proteins that more closely resemble their host form.
Vascular endothelial growth factor (VEGF) proteins stimulate vasculogenesis and angiogenesis. The VEGF proteins are part of the system that restores the oxygen supply to tissues when blood circulation is inadequate. The normal function of VEGF proteins is to create new blood vessels during embryonic development, new blood vessels after injury, muscle following exercise, and new vessels (collateral circulation) to bypass blocked vessels. The VEGF family has six members, including VEGF-A, VEGF-B, VEGF-C, VEGF-D, VEGF-E, and Placental Growth Factor (PGF).Activity of VEGF-A has been studied mostly on cells of the vascular endothelium, although it does have effects on a number of other cell types (e.g., stimulation monocyte/macrophage migration, neurons, cancer cells, kidney epithelial cells). In vitro, VEGF-A has been shown to stimulate endothelial cell mitogenesis and cell migration. VEGF-A is also a vasodilator and increases microvascular permeability and was originally referred to as vascular permeability factor (VPF).
The recombinant rat protein VEGF-A has a predicted molecular weight of 20.6kDa.
All IBI recombinant proteins are lyophilized and shipped at room temperature without carrier protein. Proteins can be reconstituted in sterile PBS with at least 0.1% of carrier protein such as BSA or cell assay media.
The rat VEGF-A protein can be used in cell culture, as a VEGF-A ELISA Standard, and as a Western Blot Control.
Country of Origin: USA