FASL
(Fas Ligand (TNF Superfamily, Member 6) (FASL))
Reactivity
Human, Mouse
Host
Hamster
Clonality
Monoclonal
Conjugate
This FASL antibody is conjugated to Biotin
Application
Flow Cytometry (FACS)
Specificity
This antibody reacts with mouse FasL of B6, C3H and MRL mice as well as Balb/c and DBA/1 mice, but does not detect gld-type mouse FasL mutant by flow cytometric analysis. We have tested the reactivity on flow cytometry using mouse cell line W40LFL, which is overexpressor of mouse FasL extracellular region (See ref. 11) for more information about this cell line).
Cross-Reactivity (Details)
Species reactivity (tested):Mouse. Weakly with human.
Purification
Protein A agarose
Immunogen
W40LFL cells, which is overexpressed mouse FasL extracellular region
Fas ligand (FasL/CD178/CD95L) is a type II-membrane protein, whose N terminus is in the cytoplasm and its C-terminal region extends into the extracellular space. Its receptor Fas, also termed Apo-1 or CD95, is a cell-surface type I-membrane protein and a member of the tumor necrosis factor (TNF) and nerve growth factor (NGF) receptor family. It is known that engagement of Fas by FasL results in apoptotic cell death. Binding of a trimeric FasL to Fas induces trimerization of Fas, and FADD/MORT1 binds to the trimerized Fas cytoplasmic region through the interaction of the respective death domains. Caspase-8 is then recruited to FADD/MORT1 through binding of each death effector domains (DED), which in turn may induce self-activation of the protease domain and eventually leads cell to apoptosis. FasL is predominantly expressed in activated T lymphocytes and Natural Killer (NK) cells, although it is expressed in the tissues of the immune-privilege sites such as the testis and eye. Furthermore, a variety of cancers such as melanomas were found to express FasL in addition to Fas. On the other hand, Fas is expressed in various tissues with abundant expression in the thymus, liver, heart, and kidney. It is reported that Fas/FasL system is involved in the deletion of activated or autoreactive T and B cells. Mature T cells of normal mice are known to die, after they accomplish their tasks. On the contrary, mature T cells from lpr and gld mice, which are deficient of Fas and FasL respectively, do not die after activation, and activated cells accumulate in the lymph nodes and spleens of these mice. Moreover T cell hybridomas activated in the presence of Fas-neutralizing molecule, do not die. In addition to T cells, the Fas-deficient mice accumulate B cells and have elevated levels of immunoglobulins (Ig) of various classes that include anti-ssDNA and anti-dsDNA antibodies. FasL can be used as an immune-suppressive agent. Rejection of transplants is mediated by activated T cells that may express functional Fas. If a transplanted tissue is engineered to express FasL or is co-transplanted with FasL expressing cells, the transplant may be tolerated. Also Fas/ FasL system has been shown to play a role in human diseases such as fulminant hepatitis, AIDS, cancers and other diseases involving CTL-induced tissue destruction.Synonyms: APT1LG1, APTL, Apoptosis antigen ligand, CD95L protein, FASL, FASLG, Fas antigen ligand, TNFSF6, Tumor necrosis factor ligand superfamily member 6