Recombinant Human Tumor Necrosis Factor beta/TNF beta

Source: E.coli. MW :18.8kD. Recombinant Human Tumor Necrosis Factor beta is produced by our E.coli expression system and the target gene encoding Leu35-Leu205 is expressed. Tumor Necrosis Factor beta (TNF- beta) is a secreted protein belonging to the tumor necrosis factor family. TNF- beta binds to TNFRSF1A/TNFR1, TNFRSF1B/TNFBR and TNFRSF14/HVEM in homotrimeric form, binds to TNFRSF3/LTBR in heterotrimeric form with LTB. TNF- beta forms heterotrimers with lymphotoxin-beta, which anchors TNF- beta to the cell surface. TNF- beta mediates the inflammatory, immunostimulatory, and antiviral response, involves in the formation of second lymphoid organs during development, has a role in apoptosis. TNF- beta is produced by lymphocytes and cytotoxic for a variety of tumor cells in vitro and in vivo.

LTA

4049

P01374

Lyophilized from a 0.2 μm filtered solution of 20mM PB, 150mM NaCl, pH 7.4.

The product is shipped at ambient temperature.

Lyophilized protein should be stored at -20°C, though stable at room temperature for 3 weeks. Reconstituted protein solution can be stored at 4-7°C for 2-7 days. Aliquots of reconstituted samples are stable at -20°C for 3 months.

Always centrifuge tubes before opening. Do not mix by vortex or pipetting. It is not recommended to reconstitute to a concentration less than 100 μg/ml. Dissolve the lyophilized protein in ddH2O. Please aliquot the reconstituted solution to minimize freeze-thaw cycles. Endotoxin : Less than 0.1 ng/μg (1 IEU/μg) as determined by LAL test. Biological Activity : The ED50 for this effect is typically 23 pg/mL.

MLPGVGLTPSAAQTARQHPKMHLAHSTLKPAAHLIGDPSKQNSLLWRANTDRAFLQDGFSLSNNSLLVPTSGIYFVYSQVVFSGKAYSPKATSSPLYLAHEVQLFSSQYPFHVPLLSSQKMVYPGLQEPWLHSMYHGAAFQLTQGDQLSTHTDGIPHLVLSPSTVFFGAFAL