2n01: Difference between revisions
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==NMR structure of VirB9 C-terminal domain in complex with VirB7 N-terminal domain from Xanthomonas citri's T4SS== | ==NMR structure of VirB9 C-terminal domain in complex with VirB7 N-terminal domain from Xanthomonas citri's T4SS== | ||
<StructureSection load='2n01' size='340' side='right' caption='[[2n01]], [[NMR_Ensembles_of_Models | 20 NMR models]]' scene=''> | <StructureSection load='2n01' size='340' side='right' caption='[[2n01]], [[NMR_Ensembles_of_Models | 20 NMR models]]' scene=''> | ||
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</td></tr><tr id='NonStdRes'><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=ACE:ACETYL+GROUP'>ACE</scene>, <scene name='pdbligand=NH2:AMINO+GROUP'>NH2</scene></td></tr> | </td></tr><tr id='NonStdRes'><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=ACE:ACETYL+GROUP'>ACE</scene>, <scene name='pdbligand=NH2:AMINO+GROUP'>NH2</scene></td></tr> | ||
<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[2l4w|2l4w]]</td></tr> | <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[2l4w|2l4w]]</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=2n01 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2n01 OCA], [http://www.rcsb.org/pdb/explore.do?structureId=2n01 RCSB], [http://www.ebi.ac.uk/pdbsum/2n01 PDBsum]</span></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=2n01 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2n01 OCA], [http://pdbe.org/2n01 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=2n01 RCSB], [http://www.ebi.ac.uk/pdbsum/2n01 PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=2n01 ProSAT]</span></td></tr> | ||
</table> | </table> | ||
<div style="background-color:#fffaf0;"> | |||
== Publication Abstract from PubMed == | |||
The type IV secretion system (T4SS) from the phytopathogen Xanthomonas citri (Xac) is a bactericidal nanomachine. The T4SS core complex is a ring composed of multiple copies of VirB7-VirB9-VirB10 subunits. Xac-VirB7 contains a disordered N-terminal tail (VirB7NT) that recognizes VirB9, and a C-terminal domain (VirB7CT) involved in VirB7 self-association. Here, we show that VirB7NT forms a short beta strand upon binding to VirB9 and stabilizes it. A tight interaction between them is essential for T4SS assembly and antibacterial activity. Abolishing VirB7 self-association or deletion of the VirB7 C-terminal domain impairs this antibacterial activity without disturbing T4SS assembly. These findings reveal protein interactions within the core complex that are critical for the stability and activity of a T4SS. | |||
VirB7 and VirB9 Interactions Are Required for the Assembly and Antibacterial Activity of a Type IV Secretion System.,Oliveira LC, Souza DP, Oka GU, Lima FD, Oliveira RJ, Favaro DC, Wienk H, Boelens R, Farah CS, Salinas RK Structure. 2016 Oct 4;24(10):1707-1718. doi: 10.1016/j.str.2016.07.015. Epub 2016, Sep 1. PMID:27594685<ref>PMID:27594685</ref> | |||
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |||
</div> | |||
<div class="pdbe-citations 2n01" style="background-color:#fffaf0;"></div> | |||
== References == | |||
<references/> | |||
__TOC__ | __TOC__ | ||
</StructureSection> | </StructureSection> | ||
Revision as of 13:11, 19 October 2016
NMR structure of VirB9 C-terminal domain in complex with VirB7 N-terminal domain from Xanthomonas citri's T4SSNMR structure of VirB9 C-terminal domain in complex with VirB7 N-terminal domain from Xanthomonas citri's T4SS
Structural highlights
Publication Abstract from PubMedThe type IV secretion system (T4SS) from the phytopathogen Xanthomonas citri (Xac) is a bactericidal nanomachine. The T4SS core complex is a ring composed of multiple copies of VirB7-VirB9-VirB10 subunits. Xac-VirB7 contains a disordered N-terminal tail (VirB7NT) that recognizes VirB9, and a C-terminal domain (VirB7CT) involved in VirB7 self-association. Here, we show that VirB7NT forms a short beta strand upon binding to VirB9 and stabilizes it. A tight interaction between them is essential for T4SS assembly and antibacterial activity. Abolishing VirB7 self-association or deletion of the VirB7 C-terminal domain impairs this antibacterial activity without disturbing T4SS assembly. These findings reveal protein interactions within the core complex that are critical for the stability and activity of a T4SS. VirB7 and VirB9 Interactions Are Required for the Assembly and Antibacterial Activity of a Type IV Secretion System.,Oliveira LC, Souza DP, Oka GU, Lima FD, Oliveira RJ, Favaro DC, Wienk H, Boelens R, Farah CS, Salinas RK Structure. 2016 Oct 4;24(10):1707-1718. doi: 10.1016/j.str.2016.07.015. Epub 2016, Sep 1. PMID:27594685[1] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. References
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