Recombinant Human GDF-15 Protein, Active, Low Endotoxin

Beta LifeScience SKU/CAT #: BEP-0010
Recombinant Human GDF-15 (2 ug/lane) on SDS-PAGE under reducing (R) and non-reducing (NR) conditions. The gel was stained using Coomassie® Blue showing single bands at 12 kDa and 24 kDa, respectively, and purity greater than 98%.
Recombinant Human GDF-15 (2 ug/lane) on SDS-PAGE under reducing (R) and non-reducing (NR) conditions. The gel was stained using Coomassie® Blue showing single bands at 12 kDa and 24 kDa, respectively, and purity greater than 98%.

Recombinant Human GDF-15 Protein, Active, Low Endotoxin

Beta LifeScience SKU/CAT #: BEP-0010
Regular price $1,234.00
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Size

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Product Overview

Product Name Recombinant Human GDF-15 Protein
Target Symbol GDF15
Alternative Names Growth Differentiation Factor 15, GDF15, MIC-1, Macrophage Inhibitory Cytokine 1, NAG1, PDF, PLAB, Prostate Differentiation Factor, PTGFB, PTGF-beta
Accession Number Q99988
Expression System CHO cell line. Disulfide-linked homodimer.
Molecular Weight 12.5 kDa (monomer, predicted), 12 kDa and 24 kDa (observed on SDS-PAGE gel stained using Coomassie® Blue under reducing and non-reducing conditions, respectively)
Sequence Ala195-Ile308
Purity >98% under reducing conditions by SDS-PAGE and quantitative densitometry by Coomassie® Blue staining.
Activity Determined by an alkaline phosphatase activity inhibition assay using mouse MC3T3-E1 cells. The ED50 for this effect is typically <2 ng/mL.
Formulation Lyophilized from sterile Tris and NaCl with Trehalose, pH 7.5
Endotoxin Level <0.05 EU/1ug of the protein as determined by the LAL method.
Shipping Shipped at ambient temperature.
Stability & Storage 12 months from date of receipt at -20°C to -70°C, lyophilized powder. 3 months at -20°C to -70°C under sterile conditions after reconstitution. Avoid repeated freeze-thaw cycles.
Reconstitution Reconstitute at 100 ug/mL in sterile PBS.
Target Function Growth Differentiation Factor 15 (GDF-15) is part of the Transforming Growth Factor-beta (TGF-β) superfamily. GDF-15 is a dimeric protein consisting of a pro-domain and a mature, biologically active domain. The mature form of GDF-15 contains a conserved cysteine knot structure typical of the TGF-β family. GDF-15 exerts its biological effects by binding to the GFRAL receptor (GDNF family receptor alpha-like) and activates the RET (rearranged during transfection) kinase signaling pathway. This signaling cascade involves phosphorylation events leading to the activation of MAPK, PI3K, and AKT pathways. GDF-15 has been implicated in the regulation of appetite, energy balance, and tissue repair. It can act as a protective response during stress and is involved in processes like apoptosis, tissue remodeling, and the immune response.
Tissue Specificity GDF-15 expression has been reported in liver tissue, adipose tissue, skeletal muscle cells, cardiac tissue, kidney tissue, brain (hypothalamus and hindbrain) tissue, pancreatic cells, lung tissue, macrophages and dendritic cells.
Cellular Localization Secreted protein
Involvement In Disease Dysregulation of GDF-15 has been implicated in tumor progression, metastasis and immune evasion along with cachexia in cancer patients elevated levels of GDF-15 are associated with metabolic abnormalities such as reduced appetite promoting catabolism. Dysregulation of GDF-15 is also associated with atherosclerosis, chronic kidney disease, Alzheimer’s disease, Parkinson’s disease, rheumatoid arthritis, systemic lupus erythematosus (SLE), non-alcoholic fatty liver disease (NAFLD), pre-eclampsia, sarcopenia, and Duchenne muscular dystrophy (DMD).

FAQs

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Proteins are sensitive to heat, and freeze-drying can preserve the activity of the majority of proteins. It improves protein stability, extends storage time, and reduces shipping costs. However, freeze-drying can also lead to the loss of the active portion of the protein and cause aggregation and denaturation issues. Nonetheless, these adverse effects can be minimized by incorporating protective agents such as stabilizers, additives, and excipients, and by carefully controlling various lyophilization conditions.

Commonly used protectant include saccharides, polyols, polymers, surfactants, some proteins and amino acids etc. We usually add 8% (mass ratio by volume) of trehalose and mannitol as lyoprotectant. Trehalose can significantly prevent the alter of the protein secondary structure, the extension and aggregation of proteins during freeze-drying process; mannitol is also a universal applied protectant and fillers, which can reduce the aggregation of certain proteins after lyophilization.

Our protein products do not contain carrier protein or other additives (such as bovine serum albumin (BSA), human serum albumin (HSA) and sucrose, etc., and when lyophilized with the solution with the lowest salt content, they often cannot form A white grid structure, but a small amount of protein is deposited in the tube during the freeze-drying process, forming a thin or invisible transparent protein layer.

Reminder: Before opening the tube cap, we recommend that you quickly centrifuge for 20-30 seconds in a small centrifuge, so that the protein attached to the tube cap or the tube wall can be aggregated at the bottom of the tube. Our quality control procedures ensure that each tube contains the correct amount of protein, and although sometimes you can't see the protein powder, the amount of protein in the tube is still very precise.

To learn more about how to properly dissolve the lyophilized recombinant protein, please visit Lyophilization FAQs.

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