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| <StructureSection load='7ljm' size='340' side='right'caption='[[7ljm]], [[Resolution|resolution]] 2.60Å' scene=''> | | <StructureSection load='7ljm' size='340' side='right'caption='[[7ljm]], [[Resolution|resolution]] 2.60Å' scene=''> |
| == Structural highlights == | | == Structural highlights == |
| <table><tr><td colspan='2'>[[7ljm]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/"bacillus_cholerae-suis"_smith_1894 "bacillus cholerae-suis" smith 1894]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=7LJM OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=7LJM FirstGlance]. <br> | | <table><tr><td colspan='2'>Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=7LJM OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=7LJM FirstGlance]. <br> |
| </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=GTP:GUANOSINE-5-TRIPHOSPHATE'>GTP</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene></td></tr> | | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.6Å</td></tr> |
| <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">GNB57_001779 ([https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=28901 "Bacillus cholerae-suis" Smith 1894])</td></tr> | | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=GTP:GUANOSINE-5-TRIPHOSPHATE'>GTP</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene></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=7ljm FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=7ljm OCA], [https://pdbe.org/7ljm PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=7ljm RCSB], [https://www.ebi.ac.uk/pdbsum/7ljm PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=7ljm ProSAT]</span></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=7ljm FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=7ljm OCA], [https://pdbe.org/7ljm PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=7ljm RCSB], [https://www.ebi.ac.uk/pdbsum/7ljm PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=7ljm ProSAT]</span></td></tr> |
| </table> | | </table> |
| <div style="background-color:#fffaf0;">
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| == Publication Abstract from PubMed ==
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| cGAS/DncV-like nucleotidyltransferase (CD-NTase) enzymes are signaling proteins that initiate antiviral immunity in animal cells and cyclic-oligonucleotide-based anti-phage signaling system (CBASS) phage defense in bacteria. Upon phage recognition, bacterial CD-NTases catalyze synthesis of cyclic-oligonucleotide signals, which activate downstream effectors and execute cell death. How CD-NTases control nucleotide selection to specifically induce defense remains poorly defined. Here, we combine structural and nucleotide-analog interference-mapping approaches to identify molecular rules controlling CD-NTase specificity. Structures of the cyclic trinucleotide synthase Enterobacter cloacae CdnD reveal coordinating nucleotide interactions and a possible role for inverted nucleobase positioning during product synthesis. We demonstrate that correct nucleotide selection in the CD-NTase donor pocket results in the formation of a thermostable-protein-nucleotide complex, and we extend our analysis to establish specific patterns governing selectivity for each of the major bacterial CD-NTase clades A-H. Our results explain CD-NTase specificity and enable predictions of nucleotide second-messenger signals within diverse antiviral systems.
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| Molecular basis of CD-NTase nucleotide selection in CBASS anti-phage defense.,Govande AA, Duncan-Lowey B, Eaglesham JB, Whiteley AT, Kranzusch PJ Cell Rep. 2021 Jun 1;35(9):109206. doi: 10.1016/j.celrep.2021.109206. PMID:34077735<ref>PMID:34077735</ref>
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| From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br>
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| </div>
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| <div class="pdbe-citations 7ljm" style="background-color:#fffaf0;"></div>
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| == References ==
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| <references/>
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| __TOC__ | | __TOC__ |
| </StructureSection> | | </StructureSection> |
| [[Category: Bacillus cholerae-suis smith 1894]]
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| [[Category: Large Structures]] | | [[Category: Large Structures]] |
| [[Category: Eaglesham, J B]] | | [[Category: Eaglesham JB]] |
| [[Category: Govande, A]] | | [[Category: Govande A]] |
| [[Category: Kranzsuch, P J]] | | [[Category: Kranzsuch PJ]] |
| [[Category: Lowey, B]] | | [[Category: Lowey B]] |
| [[Category: Whiteley, A W]] | | [[Category: Whiteley AW]] |
| [[Category: Cbass]]
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| [[Category: Cd-ntase]]
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| [[Category: Transferase]]
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| [[Category: Trinucleotide]]
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