| Antigen | The DNA sequence encoding human BMP-2 was expressed in E. coli and purified (>98%). The mature recombinant human BMP-2 generated by the proteolytic removal of the signal peptide. The purified protein is of ~26 KD, containing two identical chains of 115 amino acids linked by disulfide bond. Recombinant BMP-2 has very low endotoxin level (<0.1 ng/1 ug). |