121 amino acid homodimeric human VEGF splice variant corresponding to amino acids 27-214 with a deletion at amino acids 141-208, 50 µg
40 kDa, biologically active, tagged fusion protein purified from bacterial lysates
biologically active as determined by its mitogenic activity on human dermal microvascular endothelial cells using a concentration range of 1.0 to 100 ng/ml