| Species : | 
                                    Mouse | 
                                
                                
                                    | Source : | 
                                    Mammalian Cells | 
                                
                                
                                    | Tag : | 
                                    His | 
                                
                                
                                    | Protein Length : | 
                                    25-184 a.a. | 
                                
                                
                                    | Description : | 
                                    Grem1 wasidentified in a Xenopus expression-cloning screen as a dorsalizing factorthat can induce a secondary axis. A rat homolog, called Grem1, was identifiedas a cDNA that was downregulated in v-mos transfected cells. Grem1 belongs tothe DAN family of secreted glycoproteins that are BMP antagonists. Othermembers of the family include: cerberus, Dante, PRDC, caronte and DAN. DAN familymembers share a cysteine-rich domain that is structurally related to thecysteine-knot motif found in TGF-β superfamily ligands. In vitro, Grem1 bindsBMP-4 and BMP-2 indicating that it might interfere with BMP signaling. | 
                                
                                
                                    | Form : | 
                                    Lyophilized from a0.2 um filtered solution in Acetonitrile and TFA with BSA as a carrierprotein. | 
                                
                                
                                    | N-terminalSequence : | 
                                    Lys25 | 
                                
                                
                                    | MolecularWeight : | 
                                    19.6 kDa | 
                                
                                
                                    | Activity : | 
                                    Measuredby its ability to inhibit BMP-4-induced alkaline phosphatase production by ATDC5mouse chondrogenic cells. The ED50 for this effect is typically 0.4-2 μg/mLin the presence of 75 ng/mL of rhBMP-4. | 
                                
                                
                                    | Endotoxin Level : | 
                                    <1.0EU per 1μg of the protein by the LAL method. | 
                                
                                
                                    | SDS-PAGE : | 
                                    23-31kDa, reducing conditions. | 
                                
                                
                                    | Purity : | 
                                    >90%,by SDS-PAGE under reducing conditions and visualized by silver stain. | 
                                
                                
                                    | Reconstitution : | 
                                    250 μg/mLin sterile 4 mM HCl containing at least 0.1% human or bovine serum albumin | 
                                
                                
                                    | Storage : | 
                                    Use amanual defrost freezer and avoid repeated freeze-thaw cycles. 12 monthsfrom date of receipt, -20 to -70 °C as supplied. 1 month, 2 to 8 °C understerile conditions after reconstitution. 3 months, -20 to -70 °C understerile conditions after reconstitution. |