6n9n

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'''Unreleased structure'''
 
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The entry 6n9n is ON HOLD until Paper Publication
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==Crystal structure of murine GSDMD==
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<StructureSection load='6n9n' size='340' side='right'caption='[[6n9n]], [[Resolution|resolution]] 3.30&Aring;' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[6n9n]] is a 2 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6N9N OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=6N9N FirstGlance]. <br>
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</td></tr><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=6n9n FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6n9n OCA], [http://pdbe.org/6n9n PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=6n9n RCSB], [http://www.ebi.ac.uk/pdbsum/6n9n PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=6n9n ProSAT]</span></td></tr>
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</table>
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== Function ==
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[[http://www.uniprot.org/uniprot/GSDMD_MOUSE GSDMD_MOUSE]] Gasdermin-D, N-terminal: Promotes pyroptosis in response to microbial infection and danger signals. Produced by the cleavage of gasdermin-D by inflammatory caspases CASP1 or CASP4 in response to canonical, as well as non-canonical (such as cytosolic LPS) inflammasome activators (PubMed:26611636, PubMed:26375259, PubMed:26375003, PubMed:27418190, PubMed:27385778, PubMed:27383986). After cleavage, moves to the plasma membrane where it strongly binds to membrane inner leaflet lipids, including monophosphorylated phosphatidylinositols, such as phosphatidylinositol 4-phosphate, bisphosphorylated phosphatidylinositols, such as phosphatidylinositol (4,5)-bisphosphate, as well as phosphatidylinositol (3,4,5)-trisphosphate, and more weakly to phosphatidic acid and phosphatidylserine. Homooligomerizes within the membrane and forms pores of 10 - 15 nanometers (nm) of inner diameter, allowing the release of mature IL1B and triggering pyroptosis. Exhibits bactericidal activity. Gasdermin-D, N-terminal released from pyroptotic cells into the extracellular milieu rapidly binds to and kills both Gram-negative and Gram-positive bacteria, without harming neighboring mammalian cells, as it does not disrupt the plasma membrane from the outside due to lipid-binding specificity. Under cell culture conditions, also active against intracellular bacteria, such as Listeria monocytogenes. Strongly binds to bacterial and mitochondrial lipids, including cardiolipin. Does not bind to phosphatidylethanolamine or phosphatidylcholine (PubMed:27383986).<ref>PMID:26375003</ref> <ref>PMID:26375259</ref> <ref>PMID:26611636</ref> <ref>PMID:27383986</ref> <ref>PMID:27385778</ref> <ref>PMID:27418190</ref>
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<div style="background-color:#fffaf0;">
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== Publication Abstract from PubMed ==
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Gasdermin D (GSDMD) is an effector molecule for pyroptosis downstream of canonical and noncanonical inflammasome signaling pathways. Cleavage of GSDMD by inflammatory caspases triggers the oligomerization and lipid binding by its N-terminal domain, which assembles membrane pores, whereas its C-terminal domain binds the N-terminal domain to inhibit pyroptosis. Despite recent progress in our understanding of the structure and function of the murine gasdermin A3 (mGSDMA3), the molecular mechanisms of GSDMD activation and regulation remain poorly characterized. Here, we report the crystal structures of the full-length murine and human GSDMDs, which reveal the architecture of the GSDMD N-terminal domains and demonstrate distinct and common features of autoinhibition among gasdermin family members utilizing their beta1-beta2 loops. Disruption of the intramolecular domain interface enhanced pyroptosis, whereas mutations at the predicted lipid-binding or oligomerization surface reduced cytolysis. Our study provides a framework for understanding the autoinhibition, lipid binding, and oligomerization of GSDMD by using overlapping interfaces.
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Authors:
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Crystal Structures of the Full-Length Murine and Human Gasdermin D Reveal Mechanisms of Autoinhibition, Lipid Binding, and Oligomerization.,Liu Z, Wang C, Yang J, Zhou B, Yang R, Ramachandran R, Abbott DW, Xiao TS Immunity. 2019 May 8. pii: S1074-7613(19)30197-9. doi:, 10.1016/j.immuni.2019.04.017. PMID:31097341<ref>PMID:31097341</ref>
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Description:
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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[[Category: Unreleased Structures]]
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</div>
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<div class="pdbe-citations 6n9n" style="background-color:#fffaf0;"></div>
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== References ==
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<references/>
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__TOC__
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</StructureSection>
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[[Category: Large Structures]]
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[[Category: Liu, Z]]
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[[Category: Wang, C]]
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[[Category: Xiao, T S]]
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[[Category: Yang, J]]
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[[Category: Autoinhibition]]
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[[Category: Gasdermin d]]
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[[Category: Immune system]]
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[[Category: Inflammasome]]
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[[Category: Pyroptosis]]

Revision as of 22:49, 5 June 2019

Crystal structure of murine GSDMD

PDB ID 6n9n

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