Recombinant Human Noggin (CHO-expressed) 是骨形态发生蛋白 (BMPs) 的拮抗剂,对 hBMP-4 有很高的亲和性,而对 hBMP-7 的亲和性较低,它在骨骼发展过程中是必不可少的。 Synonyms rHuNoggin; NOG ; 重组人头蛋白 (CHO 细胞表达) Species HumanSource CHO Accession Q13253 Gene ID 9241 Molecular Weight 29-31 kDa AA Sequence QHYLHIRPAP SDNLPLVDLI EHPDPIFDPK EKDLNETLLR SLLGGHYDPG FMATSPPEDR PGGGGGAAGG AEDLAELDQL LRQRPSGAMP SEIKGLEFSE GLAQGKKQRL SKKLRRKLQM WLWSQTFCPV LYAWNDLGSR FWPRYVKVGS CFSKRSCSVP EGMVCKPSKS VHLTVLRWRC QRRGGQRCGW IPIQYPIISE CKCSC Biological Activity The ED50 is <2.5 ng/mL as measured by ATDC5 cells. Appearance Lyophilized powder. Formulation Lyophilized after extensive dialysis against PBS. Endotoxin Level <0.2 EU/μg, determined by LAL method. Reconstitution Reconstitute the lyophilized recombinant Human Noggin (CHO-expressed) (rHuNoggin) to 100 µg/mL using ddH2O or diluted with PBS. Storage & Stability Lyophilized recombinant Human Noggin (CHO-expressed) (rHuNoggin) is stored at -20°C. After reconstitution, it is stable at 4°C for 1 week or -20°C for longer. It is recommended to freeze aliquots at -20°C or -80°C for extended storage. Shipping Room temperature in continental US; may vary elsewhere. Background Human Noggin protein has 205 amino acids (residues 28-232) after removal of its signal sequence (residues 1-27) and is secreted as a glycosylated, covalently linked homodimer, binds with high affinity to hBMP-4, and with lower affinity to hBMP-7 and acts as an antagonist of bone morphogenetic proteins (BMPs)[1]. Noggin is essential for proper skeletal development; excess BMP activity in the Noggin null mutant results in excess cartilage and failure to initiate joint formation[2]. |