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| | ==Adhesin domain of PrgB from Enterococcus faecalis== | | ==Adhesin domain of PrgB from Enterococcus faecalis== |
| - | <StructureSection load='6evu' size='340' side='right' caption='[[6evu]], [[Resolution|resolution]] 1.60Å' scene=''> | + | <StructureSection load='6evu' size='340' side='right'caption='[[6evu]], [[Resolution|resolution]] 1.60Å' scene=''> |
| | == Structural highlights == | | == Structural highlights == |
| - | <table><tr><td colspan='2'>[[6evu]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/"enterococcus_proteiformis"_thiercelin_and_jouhaud_1903 "enterococcus proteiformis" thiercelin and jouhaud 1903]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6EVU OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=6EVU FirstGlance]. <br> | + | <table><tr><td colspan='2'>[[6evu]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Enterococcus_faecalis Enterococcus faecalis]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6EVU OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=6EVU FirstGlance]. <br> |
| - | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=PO4:PHOSPHATE+ION'>PO4</scene>, <scene name='pdbligand=TRS:2-AMINO-2-HYDROXYMETHYL-PROPANE-1,3-DIOL'>TRS</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]] 1.598Å</td></tr> |
| - | <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">prgB ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=1351 "Enterococcus proteiformis" Thiercelin and Jouhaud 1903])</td></tr> | + | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=PO4:PHOSPHATE+ION'>PO4</scene>, <scene name='pdbligand=TRS:2-AMINO-2-HYDROXYMETHYL-PROPANE-1,3-DIOL'>TRS</scene></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=6evu FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6evu OCA], [http://pdbe.org/6evu PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=6evu RCSB], [http://www.ebi.ac.uk/pdbsum/6evu PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=6evu 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=6evu FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6evu OCA], [https://pdbe.org/6evu PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=6evu RCSB], [https://www.ebi.ac.uk/pdbsum/6evu PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=6evu ProSAT]</span></td></tr> |
| | </table> | | </table> |
| | + | == Function == |
| | + | [https://www.uniprot.org/uniprot/Q04112_ENTFL Q04112_ENTFL] |
| | <div style="background-color:#fffaf0;"> | | <div style="background-color:#fffaf0;"> |
| | == Publication Abstract from PubMed == | | == Publication Abstract from PubMed == |
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| | __TOC__ | | __TOC__ |
| | </StructureSection> | | </StructureSection> |
| - | [[Category: Enterococcus proteiformis thiercelin and jouhaud 1903]] | + | [[Category: Enterococcus faecalis]] |
| - | [[Category: Berntsson, R P.A]] | + | [[Category: Large Structures]] |
| - | [[Category: Schmitt, A]] | + | [[Category: Berntsson RPA]] |
| - | [[Category: Adhesin]] | + | [[Category: Schmitt A]] |
| - | [[Category: Biofilm formation]]
| + | |
| - | [[Category: Cell adhesion]]
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| Structural highlights
Function
Q04112_ENTFL
Publication Abstract from PubMed
Gram-positive bacteria deploy type IV secretion systems (T4SSs) to facilitate horizontal gene transfer. The T4SSs of Gram-positive bacteria rely on surface adhesins as opposed to conjugative pili to facilitate mating. Enterococcus faecalis PrgB is a surface adhesin that promotes mating pair formation and robust biofilm development in an extracellular DNA (eDNA) dependent manner. Here we report the structure of the adhesin domain of PrgB. The adhesin domain binds and compacts DNA in vitro. In vivo PrgB deleted of its adhesin domain does not support cellular aggregation, biofilm development and conjugative DNA transfer. PrgB also binds lipoteichoic acid (LTA), which competes with DNA binding. We propose that PrgB binding and compaction of eDNA facilitates cell aggregation and plays an important role in establishment of early biofilms in mono- or polyspecies settings. Within these biofilms, PrgB mediates formation and stabilization of direct cell-cell contacts through alternative binding of cell-bound LTA, which in turn promotes establishment of productive mating junctions and efficient intra- or interspecies T4SS-mediated gene transfer. This article is protected by copyright. All rights reserved.
PrgB Promotes Aggregation, Biofilm Formation, and Conjugation through DNA Binding and Compaction.,Schmitt A, Jiang K, Camacho MI, Jonna VR, Hofer A, Westerlund F, Christie PJ, Berntsson RP Mol Microbiol. 2018 May 3. doi: 10.1111/mmi.13980. PMID:29723434[1]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
References
- ↑ Schmitt A, Jiang K, Camacho MI, Jonna VR, Hofer A, Westerlund F, Christie PJ, Berntsson RP. PrgB Promotes Aggregation, Biofilm Formation, and Conjugation through DNA Binding and Compaction. Mol Microbiol. 2018 May 3. doi: 10.1111/mmi.13980. PMID:29723434 doi:http://dx.doi.org/10.1111/mmi.13980
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