1p9r: Difference between revisions

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<StructureSection load='1p9r' size='340' side='right'caption='[[1p9r]], [[Resolution|resolution]] 2.50&Aring;' scene=''>
<StructureSection load='1p9r' size='340' side='right'caption='[[1p9r]], [[Resolution|resolution]] 2.50&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
<table><tr><td colspan='2'>[[1p9r]] 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=1P9R OCA]. For a <b>guided tour on the structure components</b> use [http://proteopedia.org/fgij/fg.htm?mol=1P9R FirstGlance]. <br>
<table><tr><td colspan='2'>[[1p9r]] 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=1P9R OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1P9R FirstGlance]. <br>
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=CL:CHLORIDE+ION'>CL</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</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]] 2.5&#8491;</td></tr>
<tr id='NonStdRes'><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=MSE:SELENOMETHIONINE'>MSE</scene></td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=CL:CHLORIDE+ION'>CL</scene>, <scene name='pdbligand=MSE:SELENOMETHIONINE'>MSE</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></td></tr>
<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">EPSE OR VC2732 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=666 "Bacillo virgola del Koch" Trevisan 1884])</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=1p9r FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1p9r OCA], [https://pdbe.org/1p9r PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1p9r RCSB], [https://www.ebi.ac.uk/pdbsum/1p9r PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1p9r ProSAT]</span></td></tr>
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://proteopedia.org/fgij/fg.htm?mol=1p9r FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1p9r OCA], [http://pdbe.org/1p9r PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1p9r RCSB], [http://www.ebi.ac.uk/pdbsum/1p9r PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=1p9r ProSAT]</span></td></tr>
</table>
</table>
== Function ==
== Function ==
[[http://www.uniprot.org/uniprot/GSPE_VIBCH GSPE_VIBCH]] Involved in a type II secretion system (T2SS, formerly general secretion pathway, GSP) for the export of proteins. Required for secretion of cholera toxin through the outer membrane.  
[https://www.uniprot.org/uniprot/GSPE_VIBCH GSPE_VIBCH] Involved in a type II secretion system (T2SS, formerly general secretion pathway, GSP) for the export of proteins. Required for secretion of cholera toxin through the outer membrane.
== Evolutionary Conservation ==
== Evolutionary Conservation ==
[[Image:Consurf_key_small.gif|200px|right]]
[[Image:Consurf_key_small.gif|200px|right]]
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</jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/main_output.php?pdb_ID=1p9r ConSurf].
</jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/main_output.php?pdb_ID=1p9r ConSurf].
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<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
Type II secretion systems consist of an assembly of 12-15 Gsp proteins responsible for transporting a variety of virulence factors across the outer membrane in several pathogenic bacteria. In Vibrio cholerae, the major virulence factor cholera toxin is secreted by the Eps Type II secretion apparatus consisting of 14 Eps proteins. One of these, EpsE, is a cytoplasmic putative NTPase essential for the functioning of the Eps system and member of the GspE subfamily of Type II secretion ATPases. The crystal structure of a truncated form of EpsE in nucleotide-liganded and unliganded state has been determined, and reveals a two-domain architecture with the four characteristic sequence "boxes" of the GspE subfamily clustering around the nucleotide-binding site of the C-domain. This domain contains two C-terminal subdomains not reported before in this superfamily of NTPases. One of these subdomains contains a four-cysteine motif that appears to be involved in metal binding as revealed by anomalous difference density. The EpsE subunits form a right-handed helical arrangement in the crystal with extensive and conserved contacts between the C and N domains of neighboring subunits. Combining the most conserved interface with the quaternary structure of the C domain in a distant homolog, a hexameric model for EpsE is proposed which may reflect the assembly of this critical protein in the Type II secretion system. The nucleotide ligand contacts both domains in this model. The N2-domain-containing surface of the hexamer appears to be highly conserved in the GspE family and most likely faces the inner membrane interacting with other members of the Eps system.
Crystal structure of the extracellular protein secretion NTPase EpsE of Vibrio cholerae.,Robien MA, Krumm BE, Sandkvist M, Hol WG J Mol Biol. 2003 Oct 24;333(3):657-74. PMID:14556751<ref>PMID:14556751</ref>
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 1p9r" style="background-color:#fffaf0;"></div>


==See Also==
==See Also==
*[[General secretion pathway protein 3D structures|General secretion pathway protein 3D structures]]
*[[General secretion pathway protein 3D structures|General secretion pathway protein 3D structures]]
== References ==
<references/>
__TOC__
__TOC__
</StructureSection>
</StructureSection>
[[Category: Bacillo virgola del koch trevisan 1884]]
[[Category: Large Structures]]
[[Category: Large Structures]]
[[Category: Hol, W G.J]]
[[Category: Vibrio cholerae]]
[[Category: Krumm, B E]]
[[Category: Hol WGJ]]
[[Category: Robien, M A]]
[[Category: Krumm BE]]
[[Category: Sandkvist, M]]
[[Category: Robien MA]]
[[Category: Bacterial type ii secretion system cytoplasmic protein - gspe]]
[[Category: Sandkvist M]]
[[Category: Protein transport]]
[[Category: Putative atpase/ atp binding protein]]

Latest revision as of 08:53, 17 April 2024

Crystal Structure of Vibrio cholerae putative NTPase EpsECrystal Structure of Vibrio cholerae putative NTPase EpsE

Structural highlights

1p9r is a 1 chain structure with sequence from Vibrio cholerae. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:X-ray diffraction, Resolution 2.5Å
Ligands:, ,
Resources:FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

GSPE_VIBCH Involved in a type II secretion system (T2SS, formerly general secretion pathway, GSP) for the export of proteins. Required for secretion of cholera toxin through the outer membrane.

Evolutionary Conservation

Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.

See Also

1p9r, resolution 2.50Å

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