Fas-associating death domain containing protein (FADD)/MORT1 serves as a signal transducer of Fas-induced apoptosis. Through its amino-terminal death effector domain (DED), FADD binds to cytosolic proteins such as TRADD, a cytosolic death domaincontaining protein that asssociates with the cytosolic portion of TNF receptor, or MACH/FLICE/caspase-8, a protease with sequence homology to ICE-CED-3 protease family, in order to transduce the death signal.
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Western blot probed with FADD mAb (1F7). Lane 1 FADD (recombinant) and cell lysates Jurkat (lane 2), Raji (lane 3), HeLa (lane 4), ZR75-1 (lane 5), A431 (lane 6), and HUC-Fm (lane 7).

S166 phosphorylation facilitates necrosome formation.a BMDMs from mice of the indicated genotypes were treated with TNF (T; 10 ng ml−1), SMAC mimetic (S (Birinapant); 1 µM) and Z-VAD-FMK (Z) for 0, 2 and 4 h. RIPK1 immunoprecipitates and total cell lysates (input) were analyzed by immunoblotting with the indicated antibodies. b BMDMs from mice of the indicated genotypes were treated with TNF (T; 10 ng ml−1), SMAC mimetic (S (Birinapant); 1 µM) and Z-VAD-FMK (Z) for 2 and 4 h. Lysates were processed under non-reducing conditions and analyzed for presence of MLKL by immunoblot. c BMDMs from mice of the indicated genotypes were treated with LPS (L; 100 ng ml−1) and Z- VAD-FMK (Z) for 13 and 15 h. Lysates were processed under non-reducing or reducing conditions and analyzed by immunoblot using the indicated antibodies. d BMDMs from mice of the indicated genotypes were treated with Poly(I:C) (P; 0.5 μg ml−1) and Z-VAD-FMK (Z) for 13 and 15 h. Lysates were processed under non-reducing or reducing conditions and analyzed by immunoblot using the indicated antibodies. a, c Representative data of three independent experiments is shown. b, d Representative data of two independent experiments is shown.
Image collected and cropped by CiteAb under a CC-BY license from the following publication: Autophosphorylation at serine 166 regulates RIP kinase 1-mediated cell death and inflammation. Nat Commun (2020)


Product Details
Alternative Name |
MORT1, Fas (TNFRSF6)-associated via death domain |
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Application |
WB |
Application Notes |
Detects a band of ~28kDa by Western blot. |
Clone |
1F7 |
Formulation |
Liquid. In PBS, pH 7.2, with 50% glycerol. |
Host |
Mouse |
Immunogen |
Recombinant human FADD. |
Isotype |
IgG1 |
Purity Detail |
Protein A affinity purified. |
Recommendation Dilutions/Conditions |
Western Blot (1µg/ml, ECL)Suggested dilutions/conditions may not be available for all applications.Optimal conditions must be determined individually for each application. |
Species Reactivity |
Human, Mouse |
UniProt ID |
Q13158 |
Worry-free Guarantee |
This antibody is covered by our Worry-Free Guarantee. |
Handling & Storage
Long Term Storage |
-20°C |
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Shipping |
Blue Ice |
Regulatory Status |
RUO – Research Use Only |
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- RIPK3 cleavage is dispensable for necroptosis inhibition but restricts NLRP3 inflammasome activation.: Tran, H. T., Kratina, T., et al.; Cell Death Differ. 31, 662 (2024), Application(s): WB / Reactant(s): Mouse, Abstract
- Plasticity-induced repression of Irf6 underlies acquired resistance to cancer immunotherapy in pancreatic ductal adenocarcinoma.: Kim, I. K., Diamond, M. S., et al.; Nat. Commun. 15, 1532 (2024), Application(s): WB, Abstract
- Upregulation of RIPK1 implicates in HEK 293T cell death upon transient transfection of A53T-α-synuclein: F. Meshkini, et al.; Int. J. Biol. Macromol. 230, 123216 (2023), Abstract
- OTULIN protects the intestinal epithelium from apoptosis during inflammation and infection: Verboom, L., Anderson, C. J., et al.; Cell Death Dis. 14, 534 (2023), Abstract
- Bioluminescent RIPoptosome Assay for FADD/RIPK1 Interaction Based on Split Luciferase Assay in a Human Neuroblastoma Cell Line SH-SY5Y: P. Ghanavatian, et al.; Biosensors 13, 297 (2023), Abstract
- Tankyrase-mediated ADP-ribosylation is a regulator of TNF-induced death: L. Liu, et al.; Sci. Adv. 8, eabh2332 (2022), Application(s): WB / Reactant(s) Mouse, Abstract
- TAB2 deficiency induces dilated cardiomyopathy by promoting RIPK1-dependent apoptosis and necroptosis: Yin, H., Guo, X., et al.; J. Clin. Invest. 132, (2022), Abstract
- RIPK1 dephosphorylation and kinase activation by PPP1R3G/PP1γ promote apoptosis and necroptosis: J. Du, et al.; Nat. Commun. 12, 7067 (2021), Abstract
- Antioxidant and food additive BHA prevents TNF cytotoxicity by acting as a direct RIPK1 inhibitor: T. Delanghe, et al.; Cell Death Dis. 12, 699 (2021), Abstract
- Tankyrase-mediated ADP-ribosylation is a novel regulator of TNF-induced death: Liu, L., Sandow, J. J., et al.; bioRxiv , (2021)
- Tristetraprolin regulates necroptosis during tonic Toll-like receptor 4 (TLR4) signaling in murine macrophages: A. Ariana, et al.; J. Biol. Chem. 295, 4661 (2020), Abstract — Full Text
- Identification of the PANoptosome: A Molecular Platform Triggering Pyroptosis, Apoptosis, and Necroptosis (PANoptosis).: Kanneganti, T. D., Zheng, M., et al.; Front. Cell. Infect. Microbiol. 10, 237 (2020), Application(s): WB, Abstract
- Edaravone inhibits procaspase-3 denitrosylation and activation through FasL-Trx2 pathway in KA-induced seizure.: Hao, L., Dong, L., et al.; Fundam. Clin. Pharmacol. 34, 662 (2020), Reactant(s): Rat, Abstract
- Autophosphorylation at serine 166 regulates RIP kinase 1-mediated cell death and inflammation: L. Laurien, et al.; Nat. Commun. 11, 1747 (2020), Application(s): WB / Reactant(s) Mouse, Abstract — Full Text
- Serine 25 phosphorylation inhibits RIPK1 kinase-dependent cell death in models of infection and inflammation: Y. Dondelinger, et al.; Nat. Commun. 10, 1729 (2019), Abstract — Full Text
- Triad3a induces the degradation of early necrosome to limit RipK1-dependent cytokine production and necroptosis: Alturki, N. A., McComb, S., et al.; Cell Death Dis. 9, 592 (2018), Abstract
- Differentiated macrophages acquire a pro-inflammatory and cell death-resistant phenotype due to increasing XIAP and p38-mediated inhibition of RipK1.: Gaestel, M., Korneluk, R. G., et al.; J. Biol. Chem. 293, 11913 (2018), Application(s): WB, Abstract
- N-glycosylation of mouse TRAIL-R restrains TRAIL-induced apoptosis: Y. Estornes, et al.; Cell Death Dis. 9, 494 (2018), Reactant(s) Mouse, Abstract — Full Text
- The linear ubiquitin chain assembly complex regulates TRAIL-induced gene activation and cell death: E. Lafont, et al.; EMBO J. 36, 1147 (2017), Abstract — Full Text
- When PERK inhibitors turn out to be new potent RIPK1 inhibitors: critical issues on the specificity and use of GSK2606414 and GSK2656157: D. Rojas-Rivera, et al.; Cell Death Differ. 24, 1100 (2017), Abstract — Full Text
- MK2 phosphorylation of RIPK1 regulates TNF-mediated cell death: Y. Dondelinger, et al.; Nat. Cell Biol. 19, 1237 (2017), Abstract
- γ-Secretase Activity Is Required for Regulated Intramembrane Proteolysis of Tumor Necrosis Factor (TNF) Receptor 1 and TNF-mediated Pro-apoptotic Signaling: J. Chhibber-Goel, et al.; J. Biol. Chem. 291, 5971 (2016), Abstract — Full Text
- SPATA2 promotes CYLD activity and regulates TNF-induced NF-κB signaling and cell death: L. Schlicher, et al.; EMBO Rep. 17, 1485 (2016), Abstract — Full Text
- TRAIL-R2-specific antibodies and recombinant TRAIL can synergise to kill cancer cells: Tuthill, M. H., Montinaro, A., et al.; Oncogene 34, 2138 (2015), Abstract
- CYLD and the NEMO Zinc Finger Regulate Tumor Necrosis Factor Signaling and Early Embryogenesis: Y. Zhao, et al.; J. Biol. Chem. 90, 22076 (2015), Application(s): Western Blot, Abstract
- In mouse embryonic fibroblasts, neither caspase-8 nor cellular FLICE-inhibitory protein (FLIP) is necessary for TNF to activate NF-κB, but caspase-8 is required for TNF to cause cell death, and induction of FLIP by NF-κB is required to prevent it: D.M. Moujalled, et al.; Cell Death Dis. 19, 808 (2012), Abstract — Full Text
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