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| | ==Crystal structure of the periplasmic domain of XcpY, tI crystal form.== | | ==Crystal structure of the periplasmic domain of XcpY, tI crystal form.== |
| - | <StructureSection load='5n7l' size='340' side='right' caption='[[5n7l]], [[Resolution|resolution]] 2.50Å' scene=''> | + | <StructureSection load='5n7l' size='340' side='right'caption='[[5n7l]], [[Resolution|resolution]] 2.50Å' scene=''> |
| | == Structural highlights == | | == Structural highlights == |
| - | <table><tr><td colspan='2'>[[5n7l]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Pseae Pseae]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5N7L OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=5N7L FirstGlance]. <br> | + | <table><tr><td colspan='2'>[[5n7l]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Pseudomonas_aeruginosa_PAO1 Pseudomonas aeruginosa PAO1]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5N7L OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=5N7L FirstGlance]. <br> |
| - | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=BR:BROMIDE+ION'>BR</scene>, <scene name='pdbligand=GLU:GLUTAMIC+ACID'>GLU</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]] 2.501Å</td></tr> |
| - | <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">xcpY, PA3096 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=208964 PSEAE])</td></tr> | + | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=BR:BROMIDE+ION'>BR</scene>, <scene name='pdbligand=GLU:GLUTAMIC+ACID'>GLU</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=5n7l FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5n7l OCA], [http://pdbe.org/5n7l PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=5n7l RCSB], [http://www.ebi.ac.uk/pdbsum/5n7l PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=5n7l 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=5n7l FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5n7l OCA], [https://pdbe.org/5n7l PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=5n7l RCSB], [https://www.ebi.ac.uk/pdbsum/5n7l PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=5n7l ProSAT]</span></td></tr> |
| | </table> | | </table> |
| | == Function == | | == Function == |
| - | [[http://www.uniprot.org/uniprot/GSPL_PSEAE GSPL_PSEAE]] Involved in a type II secretion system (T2SS, formerly general secretion pathway, GSP) for the export of proteins. | + | [https://www.uniprot.org/uniprot/GSPL_PSEAE GSPL_PSEAE] Involved in a type II secretion system (T2SS, formerly general secretion pathway, GSP) for the export of proteins. |
| | <div style="background-color:#fffaf0;"> | | <div style="background-color:#fffaf0;"> |
| | == Publication Abstract from PubMed == | | == Publication Abstract from PubMed == |
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| | </div> | | </div> |
| | <div class="pdbe-citations 5n7l" style="background-color:#fffaf0;"></div> | | <div class="pdbe-citations 5n7l" style="background-color:#fffaf0;"></div> |
| | + | |
| | + | ==See Also== |
| | + | *[[General secretion pathway protein 3D structures|General secretion pathway protein 3D structures]] |
| | == References == | | == References == |
| | <references/> | | <references/> |
| | __TOC__ | | __TOC__ |
| | </StructureSection> | | </StructureSection> |
| - | [[Category: Pseae]] | + | [[Category: Large Structures]] |
| - | [[Category: Fulara, A]] | + | [[Category: Pseudomonas aeruginosa PAO1]] |
| - | [[Category: Savvides, S N]] | + | [[Category: Fulara A]] |
| - | [[Category: Ferrodoxin fold]] | + | [[Category: Savvides SN]] |
| - | [[Category: Gspl protein]]
| + | |
| - | [[Category: Periplasm]]
| + | |
| - | [[Category: Protein transport]]
| + | |
| Structural highlights
Function
GSPL_PSEAE Involved in a type II secretion system (T2SS, formerly general secretion pathway, GSP) for the export of proteins.
Publication Abstract from PubMed
The ability of bacteria to infect a host relies in part on the secretion of molecular virulence factors across the cell envelope. Pseudomonas aeruginosa, a ubiquitous environmental bacterium causing opportunistic infections in humans, employs the type II secretion system (T2SS) to transport effector proteins across its cellular envelope as part of a diverse array of virulence strategies. General secretory pathway protein L (GspL) is an essential inner-membrane component of the T2SS apparatus, and is thought to facilitate transduction of the energy from ATP hydrolysis in the cytoplasm to the periplasmic components of the system. However, our incomplete understanding of the assembly principles of the T2SS machinery prevents the mechanistic deconvolution of T2SS-mediated protein secretion. Here we show via two crystal structures that the periplasmic ferredoxin-like domain of GspL (GspL(fld)) is a dimer stabilized by hydrophobic interactions, and that this interface may allow significant interdomain plasticity. The general dimerization mode of GspL(fld) is shared with GspL from Vibrio parahaemolyticus suggesting a conserved oligomerization mode across the GspL family. Furthermore, we identified a tetrameric form of the complete periplasmic segment of GspL (GspL(peri)) which indicates that GspL may be able to adopt multiple oligomeric states as part of its dynamic role in the T2SS apparatus.
Structure and oligomerization of the periplasmic domain of GspL from the type II secretion system of Pseudomonas aeruginosa.,Fulara A, Vandenberghe I, Read RJ, Devreese B, Savvides SN Sci Rep. 2018 Nov 13;8(1):16760. doi: 10.1038/s41598-018-34956-w. PMID:30425318[1]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
See Also
References
- ↑ Fulara A, Vandenberghe I, Read RJ, Devreese B, Savvides SN. Structure and oligomerization of the periplasmic domain of GspL from the type II secretion system of Pseudomonas aeruginosa. Sci Rep. 2018 Nov 13;8(1):16760. doi: 10.1038/s41598-018-34956-w. PMID:30425318 doi:http://dx.doi.org/10.1038/s41598-018-34956-w
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