3hcq
From Proteopedia
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| - | '''Unreleased structure''' | ||
| - | + | ==Structural analysis of the choline binding protein ChoX in a semi-closed and ligand-free conformation== | |
| + | <StructureSection load='3hcq' size='340' side='right'caption='[[3hcq]], [[Resolution|resolution]] 2.89Å' scene=''> | ||
| + | == Structural highlights == | ||
| + | <table><tr><td colspan='2'>[[3hcq]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Sinorhizobium_meliloti Sinorhizobium meliloti]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3HCQ OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3HCQ FirstGlance]. <br> | ||
| + | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.89Å</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=3hcq FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3hcq OCA], [https://pdbe.org/3hcq PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3hcq RCSB], [https://www.ebi.ac.uk/pdbsum/3hcq PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3hcq ProSAT]</span></td></tr> | ||
| + | </table> | ||
| + | == Function == | ||
| + | [https://www.uniprot.org/uniprot/Q92N37_RHIME Q92N37_RHIME] | ||
| + | == Evolutionary Conservation == | ||
| + | [[Image:Consurf_key_small.gif|200px|right]] | ||
| + | Check<jmol> | ||
| + | <jmolCheckbox> | ||
| + | <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/hc/3hcq_consurf.spt"</scriptWhenChecked> | ||
| + | <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview03.spt</scriptWhenUnchecked> | ||
| + | <text>to colour the structure by Evolutionary Conservation</text> | ||
| + | </jmolCheckbox> | ||
| + | </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=3hcq ConSurf]. | ||
| + | <div style="clear:both"></div> | ||
| + | <div style="background-color:#fffaf0;"> | ||
| + | == Publication Abstract from PubMed == | ||
| + | The periplasmic ligand-binding protein ChoX is part of the ABC transport system ChoVWX that imports choline as a nutrient into the soil bacterium Sinorhizobium meliloti. We have recently reported the crystal structures of ChoX in complex with its ligands choline and acetylcholine and the structure of a fully closed but substrate-free state of ChoX. This latter structure revealed an architecture of the ligand-binding site that is superimposable to the closed, ligand-bound form of ChoX. We report here the crystal structure of ChoX in an unusual, ligand-free conformation that represents a semi-closed form of ChoX. The analysis revealed a subdomain movement in the N-lobe of ChoX. Comparison with the two well-characterized substrate binding proteins, MBP and HisJ, suggests the presence of a similar subdomain in these proteins. | ||
| - | + | Structural analysis of the choline-binding protein ChoX in a semi-closed and ligand-free conformation.,Oswald C, Smits SH, Hoing M, Bremer E, Schmitt L Biol Chem. 2009 Nov;390(11):1163-70. PMID:19642870<ref>PMID:19642870</ref> | |
| - | + | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |
| + | </div> | ||
| + | <div class="pdbe-citations 3hcq" style="background-color:#fffaf0;"></div> | ||
| - | + | ==See Also== | |
| + | *[[ABC transporter 3D structures|ABC transporter 3D structures]] | ||
| + | == References == | ||
| + | <references/> | ||
| + | __TOC__ | ||
| + | </StructureSection> | ||
| + | [[Category: Large Structures]] | ||
| + | [[Category: Sinorhizobium meliloti]] | ||
| + | [[Category: Bremer E]] | ||
| + | [[Category: Hoeing M]] | ||
| + | [[Category: Oswald C]] | ||
| + | [[Category: Schmitt L]] | ||
| + | [[Category: Smits SHJ]] | ||
Current revision
Structural analysis of the choline binding protein ChoX in a semi-closed and ligand-free conformation
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