背景介绍 Noggin is one of a group of proteins that act as secreted antagonists of BMP activity. BMPs are essential for osteogenesis and organogenesis during embryonic development, and also play a role in tissue healing in adults. Noggin inhibits BMP activity by binding to them with high affinity, blocking their ability to bind to their receptor. 产品介绍 Human Noggin, also known as symphalangism 1 (SYM1) or synostoses (multiple) syndrome 1 (SYNS1), GenBank Accession No. NM_005450, a.a. 28-232(end), disulfide-linked homodimer. MW=~28kDa (monomer). Source: human 293 cells. Endotoxin Level: <1 EU/µg. Biological Activity: measured by Noggin's ability to inhibit BMP-4-induced alkaline phosphatase production by C2C12 mouse myoblast cells. The ED50 is < 20 ng/ml in the presence of 30 ng/ml of human BMP-4. Formulation: Lyophilized from a 0.2 µM filtered, aqueous solution. Reconstitution: Supplied as a lyophilized solid. Reconstitute in sterile water with 0.1% BSA to a final concentration of 0.1 mg/ml. Final formulation will be 50 mM Tris, pH 8.0, 1.2 M NaCl, 2.7 mM KCl, 0.1% BSA.