7wr5

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'''Unreleased structure'''
 
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The entry 7wr5 is ON HOLD until Paper Publication
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==Crystal structure of OspC3-calmodulin-caspase-4 complex binding with 2'-aF-NAD+==
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<StructureSection load='7wr5' size='340' side='right'caption='[[7wr5]], [[Resolution|resolution]] 3.10&Aring;' scene=''>
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Authors:
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== Structural highlights ==
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<table><tr><td colspan='2'>[[7wr5]] is a 3 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens] and [https://en.wikipedia.org/wiki/Shigella_flexneri Shigella flexneri]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=7WR5 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=7WR5 FirstGlance]. <br>
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Description:
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</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 3.1&#8491;</td></tr>
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[[Category: Unreleased Structures]]
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<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=5ZV:[[(2~{R},3~{R},4~{S},5~{R})-5-(3-aminocarbonylpyridin-1-yl)-4-fluoranyl-3-oxidanyl-oxolan-2-yl]methoxy-oxidanyl-phosphoryl]+[(2~{R},3~{S},4~{R},5~{R})-5-(6-aminopurin-9-yl)-3,4-bis(oxidanyl)oxolan-2-yl]methyl+hydrogen+phosphate'>5ZV</scene></td></tr>
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<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=7wr5 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=7wr5 OCA], [https://pdbe.org/7wr5 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=7wr5 RCSB], [https://www.ebi.ac.uk/pdbsum/7wr5 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=7wr5 ProSAT]</span></td></tr>
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/OSPC3_SHIFL OSPC3_SHIFL] ADP-riboxanase effector that inhibits host cell pyroptosis (PubMed:23684308, PubMed:34409271, PubMed:34671164). Acts by mediating arginine ADP-riboxanation of host CASP4/CASP11, blocking CASP4/CASP11 autoprocessing (PubMed:34671164, PubMed:35338844, PubMed:35568036). This prevents CASP4 activation and ability to recognize and cleave GSDMD, thereby inhibiting LPS-induced pyroptosis (PubMed:34671164). ADP-riboxanation takes place in two steps: OspC3 first catalyzes ADP-ribosylation of target Arg, and then initiates a deamination to remove one N-omega group (PubMed:34671164). Independently of its ADP-riboxanase activity, acts as an inhibitor of calcium signaling by inhibiting host calmodulin, preventing activation of the JAK-STAT signaling pathway in response to interferon-beta (PubMed:35568036). Mechanistically, acts by binding to the apo form of calmodulin, preventing calcium-binding and ability to activate host CaMK2 (CAMKII), which is required to stimulate the JAK-STAT signaling pathway in response to interferon-beta (PubMed:35568036).<ref>PMID:23684308</ref> <ref>PMID:34409271</ref> <ref>PMID:34671164</ref> <ref>PMID:35338844</ref> <ref>PMID:35568036</ref>
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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: Homo sapiens]]
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[[Category: Large Structures]]
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[[Category: Shigella flexneri]]
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[[Category: Ding J]]
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[[Category: Hou YJ]]
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[[Category: Shao F]]
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[[Category: Zeng H]]

Current revision

Crystal structure of OspC3-calmodulin-caspase-4 complex binding with 2'-aF-NAD+

PDB ID 7wr5

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