2na7

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==Transmembrane domain of human Fas/CD95 death receptor==
==Transmembrane domain of human Fas/CD95 death receptor==
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<StructureSection load='2na7' size='340' side='right' caption='[[2na7]], [[NMR_Ensembles_of_Models | 15 NMR models]]' scene=''>
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<StructureSection load='2na7' size='340' side='right'caption='[[2na7]]' scene=''>
== Structural highlights ==
== Structural highlights ==
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<table><tr><td colspan='2'>[[2na7]] is a 3 chain structure. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2NA7 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2NA7 FirstGlance]. <br>
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<table><tr><td colspan='2'>[[2na7]] is a 3 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2NA7 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2NA7 FirstGlance]. <br>
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</td></tr><tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[2na6|2na6]]</td></tr>
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</td></tr><tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=2na7 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2na7 OCA], [https://pdbe.org/2na7 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2na7 RCSB], [https://www.ebi.ac.uk/pdbsum/2na7 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2na7 ProSAT]</span></td></tr>
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<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2na7 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2na7 OCA], [http://pdbe.org/2na7 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=2na7 RCSB], [http://www.ebi.ac.uk/pdbsum/2na7 PDBsum]</span></td></tr>
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</table>
</table>
== Disease ==
== Disease ==
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[[http://www.uniprot.org/uniprot/TNR6_HUMAN TNR6_HUMAN]] Defects in FAS are the cause of autoimmune lymphoproliferative syndrome type 1A (ALPS1A) [MIM:[http://omim.org/entry/601859 601859]]; also known as Canale-Smith syndrome (CSS). ALPS is a childhood syndrome involving hemolytic anemia and thrombocytopenia with massive lymphadenopathy and splenomegaly.<ref>PMID:17336828</ref> <ref>PMID:7540117</ref> <ref>PMID:8929361</ref> <ref>PMID:9028321</ref> <ref>PMID:9028957</ref> <ref>PMID:9322534</ref> <ref>PMID:9821419</ref> <ref>PMID:10090885</ref> <ref>PMID:10515860</ref> <ref>PMID:10340403</ref> <ref>PMID:9927496</ref> <ref>PMID:11418480</ref> <ref>PMID:20935634</ref>
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[https://www.uniprot.org/uniprot/TNR6_HUMAN TNR6_HUMAN] Defects in FAS are the cause of autoimmune lymphoproliferative syndrome type 1A (ALPS1A) [MIM:[https://omim.org/entry/601859 601859]; also known as Canale-Smith syndrome (CSS). ALPS is a childhood syndrome involving hemolytic anemia and thrombocytopenia with massive lymphadenopathy and splenomegaly.<ref>PMID:17336828</ref> <ref>PMID:7540117</ref> <ref>PMID:8929361</ref> <ref>PMID:9028321</ref> <ref>PMID:9028957</ref> <ref>PMID:9322534</ref> <ref>PMID:9821419</ref> <ref>PMID:10090885</ref> <ref>PMID:10515860</ref> <ref>PMID:10340403</ref> <ref>PMID:9927496</ref> <ref>PMID:11418480</ref> <ref>PMID:20935634</ref>
== Function ==
== Function ==
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[[http://www.uniprot.org/uniprot/TNR6_HUMAN TNR6_HUMAN]] Receptor for TNFSF6/FASLG. The adapter molecule FADD recruits caspase-8 to the activated receptor. The resulting death-inducing signaling complex (DISC) performs caspase-8 proteolytic activation which initiates the subsequent cascade of caspases (aspartate-specific cysteine proteases) mediating apoptosis. FAS-mediated apoptosis may have a role in the induction of peripheral tolerance, in the antigen-stimulated suicide of mature T-cells, or both. The secreted isoforms 2 to 6 block apoptosis (in vitro).<ref>PMID:7533181</ref> <ref>PMID:19118384</ref>
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[https://www.uniprot.org/uniprot/TNR6_HUMAN TNR6_HUMAN] Receptor for TNFSF6/FASLG. The adapter molecule FADD recruits caspase-8 to the activated receptor. The resulting death-inducing signaling complex (DISC) performs caspase-8 proteolytic activation which initiates the subsequent cascade of caspases (aspartate-specific cysteine proteases) mediating apoptosis. FAS-mediated apoptosis may have a role in the induction of peripheral tolerance, in the antigen-stimulated suicide of mature T-cells, or both. The secreted isoforms 2 to 6 block apoptosis (in vitro).<ref>PMID:7533181</ref> <ref>PMID:19118384</ref>
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<div style="background-color:#fffaf0;">
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== Publication Abstract from PubMed ==
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Fas (CD95, Apo-1, or TNFRSF6) is a prototypical apoptosis-inducing death receptor in the tumor necrosis factor receptor (TNFR) superfamily. While the extracellular domains of TNFRs form trimeric complexes with their ligands and the intracellular domains engage in higher-order oligomerization, the role of the transmembrane (TM) domains is unknown. We determined the NMR structures of mouse and human Fas TM domains in bicelles that mimic lipid bilayers. Surprisingly, these domains use proline motifs to create optimal packing in homotrimer assembly distinct from classical trimeric coiled-coils in solution. Cancer-associated and structure-based mutations in Fas TM disrupt trimerization in vitro and reduce apoptosis induction in vivo, indicating the essential role of intramembrane trimerization in receptor activity. Our data suggest that the structures represent the signaling-active conformation of Fas TM, which appears to be different from the pre-ligand conformation. Analysis of other TNFR sequences suggests proline-containing sequences as common motifs for receptor TM trimerization.
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Structural Basis and Functional Role of Intramembrane Trimerization of the Fas/CD95 Death Receptor.,Fu Q, Fu TM, Cruz AC, Sengupta P, Thomas SK, Wang S, Siegel RM, Wu H, Chou JJ Mol Cell. 2016 Feb 18;61(4):602-13. doi: 10.1016/j.molcel.2016.01.009. Epub 2016 , Feb 4. PMID:26853147<ref>PMID:26853147</ref>
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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</div>
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<div class="pdbe-citations 2na7" style="background-color:#fffaf0;"></div>
== References ==
== References ==
<references/>
<references/>
__TOC__
__TOC__
</StructureSection>
</StructureSection>
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[[Category: Chou, J J]]
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[[Category: Homo sapiens]]
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[[Category: Fu, Q]]
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[[Category: Large Structures]]
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[[Category: MPSbyNMR, Membrane Protein Structures by Solution NMR]]
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[[Category: Chou JJ]]
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[[Category: Apoptosis]]
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[[Category: Fu Q]]
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[[Category: Proline-containing motif]]
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[[Category: Transmembrane domain]]
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[[Category: Transmembrane helix trimer]]
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Current revision

Transmembrane domain of human Fas/CD95 death receptor

PDB ID 2na7

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