GDF-8 / Myostatin / MSTN is a member of the bone morphogenetic protein (BMP) family and the TGF-beta superfamily. This group of proteins is characterized by a polybasic proteolytic processing site which is cleaved to produce a mature protein containing seven conserved cysteine residues. The members of this family are regulators of cell growth and differentiation in both embryonic and adult tissues. GDF-8 / Myostatin / MSTN is highly expressed in skeletal muscle, and myostatin loss-of-function leads to doubling of skeletal muscle mass. Experiments in mice have improved that GDF-8 / Myostatin / MSTN is a key regulator of mesenchymal stem cell proliferation and differentiation, and mice lacking Myostatin encoding gene show decreased body fat and a generalized increase in bone density and strength. The increase in bone density is observed in most anatomical regions, including the limbs, spine, and jaw, and myostatin inhibitors have been observed to significantly increase bone formation. GDF-8 / Myostatin / MSTN is also expressed in the early phases of fracture healing, and GDF-8 / Myostatin / MSTN deficiency leads to increased fracture callus size and strength. Together, these data suggest that GDF-8 / Myostatin / MSTN has direct effects on the proliferation and differentiation of osteoprogenitor cells and that GDF-8/Myostatin/MSTN antagonists and inhibitors are likely to enhance both muscle mass and bone strength.
Post-translational: Synthesized as large precursor molecule that undergoes proteolytic cleavage to generate an N-terminal propeptide and a disulfide linked C-terminal dimer, which is the biologically active molecule. The circulating form consists of a latent complex of the C-terminal dimer and other proteins, including its propeptide, which maintain the C-terminal dimer in a latent, inactive state. Ligand activation requires additional cleavage of the prodomain by a tolloid-like metalloproteinase.
生物活性
Immobilized Recombinant Mouse GDF8/Myostatin protein (rp156335) at 1.0 μg/mL can bind Domagrozumab (anti-GDF8) (Ab175511) with the EC50 of 33.4 ng/mL.
We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Reconstitute at 0.1 mg/mL in sterile distilled water. Stock solutions should be apportioned into working aliquots and stored at ≤ -20 °C. Further dilutions should be made in appropriate buffered solutions.
储存条件
-20°C储存,避免反复冻融
运输条件
超低温运输
稳定性与储存
Store at -20°C for 1 year. Avoid freeze/thaw cycle.
图片
Recombinant Mouse GDF8/Myostatin protein (rp302321) - ELISA Immobilized Recombinant Mouse GDF8/Myostatin protein (rp302321) at 1.0 μg/mL can bind Domagrozumab (anti-GDF8) (Ab175511) with the EC₅₀ of 33.4 ng/mL.
Recombinant Mouse GDF8/Myostatin protein (rp302321) - SDS-PAGE 3 μg/lane of Recombinant Mouse GDF8/Myostatin protein was resolved with SDS-PAGE under reducing (R) and non-reducing (N) conditions and visualized by Coomassie® Blue staining, showing a band at 13.8 & 37.2 & 50.3 kDa under reducing. This protein carries a polyhistidine tag at the N-terminus. The protein migrates as 13.8 kDa, 37.2 kDa and 50.3 kDa when calibrated against Protein Marker under reducing (R) condition (SDS-PAGE), speculated as mature GDF-8, propeptide and latent GDF-8 respectively due to glycosylation.