PlGF-2

Placenta Growth Factor-2 (PlGF-2), a 22 kDa protein consisting of 152 amino acid residues is produced as a homodimer. PlGF is a polypeptide growth factor and a member of the platelet-derived growth factor family but more related to vascular endothelial growth factor (VEGF) . PlGF acts only as a weak mitogen for those cell types possessing receptors for binding (e.g. vascular endothelial cells) . At least one high-affinity receptor for PlGF (FLT-1 or VEGF-R1) has been demonstrated in different primary cell types (e.g. human umbilical vein endothelial cells and monocytes) . In addition to its action as a weak mitogen it is also a chemoattractant for monocytes and endothelial cells. Three different proteins are generated by differential splicing of the human PlGF gene: PlGF-1 (131aa native chain), PlGF-2 (152aa) and PlGF-3 (203aa) . All 3 mitogens are secretable proteins, but PlGF-2 can bind to heparin with high affinity. PlGF is apparently a homodimer, but preparations of PlGF show some heterogeneity on SDS gels depending of the varying degrees of glycosylation. All dimeric forms possess similar biological activities. Heterodimers between VEGF and PlGF are mitogenic for endothelial cells and have strong angiogenic activity in vivo (e.g. in the CAM assay or in the cornea pocket assay) . Different cells and tissues (e.g. placenta) express PlGF-1 and PlGF-2 at different rates. A much related protein of PlGF is VEGF with about 53% homology and VEGF-B with similar biological activities.

PlGF; placental growth factor

5228

P49763-3

NP_001193941.1

NM_001207012.1

2p21-p16

Anti-Human

Human

Recombinant human PlGF-2 (RT #300-019)

(#A6D1)

E, WB, IF, IHC

Protein G chromatography

Centrifuge vial prior to opening. Reconstitute in sterile water to a concentration of 0.1-1.0 mg/ml.

Western blotting: Use at 0.1-1 µg/ml.

Lyophilized

PBS

Water

The lyophilized antibody is stable for at least 2 years at -20°C. After sterile reconstitution the antibody is stable at 2-8°C for up to 6 months. Frozen aliquots are stable for at least 6 months when stored at -20°C. Addition of a carrier protein or 50% glycerol is recommended for frozen aliquots.

Mouse