Human TWEAKR HEK293 Overexpression Lysate: Product Information
This Human TWEAKR overexpression lysate was created in HEK293 Cells and intented for use as a Western blot (WB) positive control. Purification of TWEAKR protein (Cat: 10431-H01H) from the overexpression lysate was verified.
A DNA sequence encoding the human TNFRSF12A isoform 1 (Q9NP84-1) extracellular domain (Glu 28-Trp 79) was fused with the Fc region of human IgG1 at the N-terminus.
The recombinant human TNFRSF12A/Fc chimera is a disulfide-linked homodimeric protein. The reduced monomer consists of 313 amino acids and has a calculated molecular mass of 34 kDa. In SDS-PAGE under reducing conditions, the apparent molecular mass of rhTNFRSF12A/Fc monomer is approximately 37 kDa.
Human TWEAKR HEK293 Overexpression Lysate: Usage Guide
Cell lysate was prepared by homogenization of the over-expressed cells in ice-cold modified RIPA Lysis Buffer with cocktail of protease inhibitors (Sigma). Cell debris was removed by centrifugation. Protein concentration was determined by Bradford assay (Bio-Rad protein assay, Microplate Standard assay). The cell lysate was boiled for 5 min in 1 x SDS loading buffer (50 mM Tris-HCl pH 6.8, 12.5% glycerol, 1% sodium dodecylsulfate, 0.01% bromophenol blue) containing 5% b-mercaptoethanol, and lyophilized.
1. Centrifuge the tube for a few seconds and ensure the pellet at the bottom of the tube.
2. Re-dissolve the pellet using 200μL pure water and boil for 2-5 min.
1 X Sample Buffer (1 X modified RIPA buffer+1 X SDS loading buffer).
Stability & Storage
Store at 4℃ for up to twelve months from date of receipt. After re-dissolution, aliquot and store at -80℃ for up to twelve months. Avoid repeated freeze-thaw cycles.
Western Blot (WB) Optimal dilutions/concentrations should be determined by the end user.
Human TWEAKR HEK293 Overexpression Lysate: Alternative Names
Human CD266 Overexpression Lysate; Human FN14 Overexpression Lysate; Human TWEAKR Overexpression Lysate
TWEAKR Background Information
Fn14 (tumor necrosis factor receptor superfamily, member 12A), also known as TNFRSF12A, is the receptor for TNFSF12/TWEAK. Fn14 shares 82% amino acid identity with the mouse sequence. It contains a signal peptide, an extracellular domain, a membrane-anchoring domain, and a cytoplasmic domain. In response to FGF1, calf serum, or phorbol ester stimulation of human quiescent fibroblasts in vitro, the level of Fn14 is increased. A 1.2-kb FN14 transcript was expressed at high levels in heart, placenta, and kidney, at intermediate levels in lung, skeletal muscle, and pancreas, and at low levels in brain and liver. In addition, elevated FN14 expression was found in human liver cancer cell lines and hepatocellular carcinoma specimens. Expression of mouse Fn14 was upregulated in hepatocellular carcinoma nodules that develop in 2 different transgenic mouse models of hepatocarcinogenesis. TNFRSF12A is the weak inducer of apoptosis in some cell types. It promotes angiogenesis and the proliferation of endothelial cells. TNFRSF12A may modulate cellular adhesion to matrix proteins.
tumor necrosis factor receptor superfamily member 12A
Burkly LC, et al. (2011) The TWEAK/Fn14 pathway in tissue remodeling: for better or for worse. Adv Exp Med Biol. 691:305-22.
Huang M, et al. (2011) Overexpression of Fn14 promotes androgen-independent prostate cancer progression through MMP-9 and correlates with poor treatment outcome. Carcinogenesis. 32(11):1589-96.
Dharmapatni AA, et al. (2011) TWEAK and Fn14 expression in the pathogenesis of joint inflammation and bone erosion in rheumatoid arthritis. Arthritis Res Ther. 13(2):R51.
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