AIM:To express the protein encoded by bone morphogenetic protein(BMP) 2 induced gene 3 kb(BIG 3) by using the gene engineering techniques.

• 目的:用基因工程技术在大肠杆菌中表达骨形态发生蛋白诱导基因(BMP-2-inducedgene3kbgene,BIG-3)所编码的蛋白。