4dtf

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==Structure of a VgrG Vibrio cholerae toxin ACD domain in complex with AMP-PNP and Mg++==
==Structure of a VgrG Vibrio cholerae toxin ACD domain in complex with AMP-PNP and Mg++==
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<StructureSection load='4dtf' size='340' side='right' caption='[[4dtf]], [[Resolution|resolution]] 2.12&Aring;' scene=''>
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<StructureSection load='4dtf' size='340' side='right'caption='[[4dtf]], [[Resolution|resolution]] 2.12&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
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<table><tr><td colspan='2'>[[4dtf]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/"bacillo_virgola_del_koch"_trevisan_1884 "bacillo virgola del koch" trevisan 1884]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4DTF OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4DTF FirstGlance]. <br>
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<table><tr><td colspan='2'>[[4dtf]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Vibrio_cholerae Vibrio cholerae]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4DTF OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=4DTF FirstGlance]. <br>
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</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=ANP:PHOSPHOAMINOPHOSPHONIC+ACID-ADENYLATE+ESTER'>ANP</scene>, <scene name='pdbligand=GOL:GLYCEROL'>GOL</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene></td></tr>
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</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=ANP:PHOSPHOAMINOPHOSPHONIC+ACID-ADENYLATE+ESTER'>ANP</scene>, <scene name='pdbligand=GOL:GLYCEROL'>GOL</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene></td></tr>
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<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[4dtd|4dtd]], [[4dth|4dth]], [[4dtl|4dtl]], [[4dtq|4dtq]]</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=4dtf FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4dtf OCA], [https://pdbe.org/4dtf PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=4dtf RCSB], [https://www.ebi.ac.uk/pdbsum/4dtf PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=4dtf ProSAT]</span></td></tr>
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<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">VC_1416, VgrG1 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=666 "Bacillo virgola del Koch" Trevisan 1884])</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=4dtf FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4dtf OCA], [http://pdbe.org/4dtf PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=4dtf RCSB], [http://www.ebi.ac.uk/pdbsum/4dtf PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=4dtf ProSAT]</span></td></tr>
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</table>
</table>
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== Function ==
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[[https://www.uniprot.org/uniprot/VGRG1_VIBC3 VGRG1_VIBC3]] Part of the type VI secretion system (T6SS) specialized secretion system, which delivers several virulence factors in both prokaryotic and eukaryotic cells during infection (By similarity). Forms the spike at the tip of the elongating tube probably formed by hemolysin co-regulated protein/Hcp. Allows the delivery of the TseL antibacterial toxin to target cells where it exerts its toxicity (By similarity). Acts also directly as an actin-directed toxin that catalyzes the covalent cross-linking of host cytoplasmic monomeric actin. Mediates the cross-link between 'Lys-50' of one monomer and 'Glu-270' of another actin monomer, resulting in formation of highly toxic actin oligomers that cause cell rounding (PubMed:22898822). The toxin can be highly efficient at very low concentrations by acting on formin homology family proteins: toxic actin oligomers bind with high affinity to formins and adversely affect both nucleation and elongation abilities of formins, causing their potent inhibition in both profilin-dependent and independent manners (PubMed:22898822). Acts as an acid--amino-acid ligase that transfers the gamma-phosphoryl group of ATP to the 'Glu-270' actin residue, resulting in the formation of an activated acyl phosphate intermediate. This intermediate is further hydrolyzed and the energy of hydrolysis is utilized for the formation of the amide bond between actin subunits (PubMed:22898822).[UniProtKB:Q9KS45]<ref>PMID:22898822</ref>
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== References ==
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<references/>
__TOC__
__TOC__
</StructureSection>
</StructureSection>
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[[Category: Bacillo virgola del koch trevisan 1884]]
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[[Category: Large Structures]]
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[[Category: Audoly, G]]
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[[Category: Vibrio cholerae]]
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[[Category: Cambillau, C]]
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[[Category: Audoly G]]
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[[Category: Cascales, E]]
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[[Category: Cambillau C]]
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[[Category: Derrez, E]]
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[[Category: Cascales E]]
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[[Category: Durand, E]]
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[[Category: Derrez E]]
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[[Category: Ortiz-Lombardia, M]]
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[[Category: Durand E]]
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[[Category: Raoult, D]]
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[[Category: Ortiz-Lombardia M]]
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[[Category: Spinelli, S]]
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[[Category: Raoult D]]
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[[Category: Alpha/beta protein]]
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[[Category: Spinelli S]]
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[[Category: Toxin]]
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Revision as of 08:37, 21 September 2022

Structure of a VgrG Vibrio cholerae toxin ACD domain in complex with AMP-PNP and Mg++

PDB ID 4dtf

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