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Home > Products > Recombinant Proteins > Recombinant Human FAS protein, Fc-tagged

Recombinant Human FAS protein, Fc-tagged

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Fc(6)
Fc Chimera(1)
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Cat.No.:
FAS-602H
Product Overview:
Recombinant Human FAS(Gln26-Asn173) fused with Fc of Human IgG1 at C-terminal was expressed in HEK293.
Description:
Fas (fibroblast associated; also known as APO-1 or CD95) is a member of the death receptor subfamily of the TNF receptor superfamily and is designated TNFRSF6. The human Fas precursor is 335 amino acids (aa) in length, and contains a 25 aa signal peptide, a 148 aa extracellular domain (ECD), a 17 aa transmembrane sequence, and a 145 aa cytoplasmic region. The ECD possesses three cysteine-rich TNFR repeats, while the cytoplasmic region contains one death domain (DD) that is required for the transduction of apoptotic signals. Human Fas ECD shares 55%, 58% 62% 63% and 64% aa sequence identity with mouse, rat, feline, bovine and porcine Fas ECD, respectively. A human Fas isoform of 314 aa that lacks the transmembrane sequence is secreted by resting lymphocytes, while isoforms of 149, 132, 103 and 86 aa that also lack the DD and show substitutions for parts of the TNFR repeats are less prominently expressed. All five isoforms block the extrinsic apoptosis pathway induced by Fas ligand binding. Fas ligand (FasL; also TNFSF6) is a type II transmembrane protein that belongs to the TNF family and is expressed on activated T-cells, NK cells, and cells found in immune privileged sites. Alternatively, FasL is also shed as a soluble form. Engagement of Fas induces oligomerization of preformed Fas trimers. This activated receptor complex recruits the adaptor molecule FADD to form the Death-Inducing Signaling Complex (DISC). Upon activation, caspases in the DISC initiate the apoptotic signaling cascade. Fas is prominent in epithelial cells, hepatocytes, activated mature lymphocytes, virus-transformed lymphocytes and tumor cells. It is an essential mediator in the activation-induced death of T lymphocytes that terminates the immune reaction. In immune-privileged tissues, infiltrating Fas-bearing lymphocytes and inflammatory cells are killed by FasL engagement. Both humans and mice with genetic defects in Fas accumulate abnormal lymphocytes and develop systemic autoimmunity. The Fas pathway also appears to intersect with the BIM (mitochondrial/intrinsic) apoptosis pathway.
Source:
HEK293
Species:
Human
Tag :
Fc
Predicted N Terminal:
Gln26 predicted: No results obtained, sequencing might be blocked
Form:
Lyophilized from a 0.2 μm filtered solution in PBS.
Bio-activity:
Measured by its ability to inhibit Fas Ligand-induced apoptosis of Jurkat human acute T cell leukemia cells. Cheng, J. et al. (1994) Science 263:1759. The ED50 for this effect is typically 6-36 ng/mL in the presence of 5 ng/mL Recombinant Human Fas Ligand/TNFSF6.
Molecular Mass:
Predicted Molecular Mass: 43.2 (monomer) kDa;
SDS-PAGE: 55-65 kDa, reducing conditions.
Protein length:
Gln26-Asn173
Endotoxin:
<0.01 EU per 1 μg of the protein by the LAL method.
Purity:
>95%, by SDS-PAGE under reducing conditions and visualized by silver stain
Storage:
Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
12 months from date of receipt, -20 to -70 centigrade as supplied.
1 month, 2 to 8 centigrade under sterile conditions after reconstitution.
3 months, -20 to -70 centigrade under sterile conditions after reconstitution.
Reconstitution:
Reconstitute at 100 μg/mL in PBS.
Shipping:
The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below.


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Optional requirements on this protein +Expand
C-fusion   N-fusion  Non-tagged
His   GST  Fc  Others
<1.0 eu/μg   <0.1 eu/μg  <0.01 eu/μg  Not required
Monomer Isolation   Dimer Isolation   Not required
>80% by SDS-PAGE   >90% by SDS-PAGE  >95% by SDS-PAGE  Others
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45-1 Ramsey Road, Shirley, NY 11967, USA
USA: 1-631-559-9269  1-631-448-7888
Europe: 44-207-048-3343
FAX: 1-631-938-8127
EMAIL: info@creative-biomart.com

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