Human GDF-15 / MIC-1 Protein, His Tag, low Endotoxin
Synonym
GDF15, GDF-15, MIC-1, MIC1, NAG-1, PDF, PLAB, PTGFB, NRG-1
Source
Human GDF-15, His Tag (GD5-H5149) is expressed from E. coli cells. It contains AA Ala 197 - Ile 308 (Accession # Q99988-1).
Predicted N-terminus: Met
Molecular Characterization
This protein carries a polyhistidine tag at the N-terminus.
The protein has a calculated MW of 14.3 kDa. The protein migrates as 15 kDa under reducing (R) condition, and 27 kDa when calibrated against Star Ribbon Pre-stained Protein Marker under non-reducing (NR) condition (SDS-PAGE).
Endotoxin
Less than 0.01 EU per μg by the LAL method / rFC method.
Sterility
Negative
Purity
>90% as determined by SDS-PAGE.
Formulation
Lyophilized from 0.22 μm filtered solution in 20 mM Citric acid, 200 mM NaCl, pH3.0 with trehalose as protectant.
Contact us for customized product form or formulation.
Reconstitution
Please see Certificate of Analysis for specific instructions.
For best performance, we strongly recommend you to follow the reconstitution protocol provided in the CoA.
Storage
For long term storage, the product should be stored at lyophilized state at -20°C or lower.
Please avoid repeated freeze-thaw cycles.
This product is stable after storage at:
-20°C to -70°C for 12 months in lyophilized state;
-70°C for 3 months under sterile conditions after reconstitution.
Background
Growth Differentiation Factor 15 (GDF-15), also called Macrophage Inhibitory Cytokine 1 (MIC-1). Expression of MIC-1 mRNA in monocytoid cells is up-regulated by a variety of stimuli associated with activation, including interleukin 1β, tumor necrosis factor α (TNF-α), interleukin 2, and macrophage colony-stimulating factor but not interferon γ, or lipopolysaccharide (LPS). It is highly expressed in cardiomyocytes, adipocytes, macrophages, endothelial cells, and vascular smooth muscle cells in normal and pathological condition. GDF-15 increases during tissue injury and inflammatory states and is associated with cardiometabolic risk. Increased GDF-15 levels are associated with cardiovascular diseases such as hypertrophy, heart failure, atherosclerosis, endothelial dysfunction, obesity, insulin resistance, diabetes, and chronic kidney diseases in diabetes. Increased GDF-15 level is linked with the progression and prognosis of the disease condition.
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