sFas Ligand, human recombinant

Leads to down-regulation of the immune response
Catalog #: 7140 | abID: ab186673

Product Details

abID ab186673
Alternate Name soluble Fas Ligand (sFasL), TNFSF6, CD95L, Apo I Ligand, APTL
Gene Symbol FASL
Gene ID 355
Accession # P25445
Source CHO cells
Appearance Lyophilized powder
Physical Form Description Sterile filtered through a 0.2 micron filter. Lyophilized from 0.5x PBS, pH 7.5.
Molecular Weight 17.9 kDa
Purity by SDS-PAGE ≥95%
Endotoxin Level < 0.1 ng/μg of protein (<1EU/μg).
Biological Activity Determined by its ability to induce cytotoxicity in Jurkat cells in the absence of any cross-linking. The ED50 for this effect is ≤10.0 ng/ml, corresponding to a specific activity of ≥ 1 x 105 units/mg.
Reconstitution Instructions Centrifuge the vial prior to opening. Reconstitute in water to a concentration of 0.1-1.0 mg/ml. Do not vortex. This solution can be stored at 2-8°C for up to 1 week. For extended storage, it is recommended to further dilute in a buffer containing a carri
Amino Acid Sequence HHHHHHHHPS PPPEKKELRK VAHLTGKSNS RSMPLEWEDT YGIVLLSGVK YKKGGLVINE TGLYFVYSKV YFRGQSCNNL PLSHKVYMRN SKYPQDLVMM EGKMMSYCTT GQMWARSSYL GAVFNLTSAD HLYVNVSELS LVNFEESQTF FGLYKL
Handling Centrifuge the vial prior to opening.
Storage Conditions -20°C
Shipping Conditions Gel Pack
USAGE For Research Use Only! Not to be used in humans

Details

Fas Ligand (FasL) is a member of the TNF superfamily that is expressed on the cell surface of activated T cells. Binding of FasL to Fas Receptor triggers apoptosis in Fas-bearing cells. FasL has the ability to kill T cells and activated B cells which leads to down-regulation of the immune response. The mechanism of Fas induced apoptosis involves recruitment of procaspase 8 through an adaptor molecule called FADD followed by processing of the pro-enzyme to active forms. These active caspases then cleave various cellular substrates leading to the eventual cell death. Both human and murine sFasL are fully active on human and murine cells. Recombinant human soluble Fas Ligand is a 17.9 kDa protein comprising the TNF homologous region of FasL and contains an 8 residue N-terminal His-Tag.


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