2x79
From Proteopedia
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| - | [[Image:2x79.png|left|200px]] | ||
| - | + | ==Inward facing conformation of Mhp1== | |
| + | <StructureSection load='2x79' size='340' side='right'caption='[[2x79]], [[Resolution|resolution]] 3.80Å' scene=''> | ||
| + | == Structural highlights == | ||
| + | <table><tr><td colspan='2'>[[2x79]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Microbacterium_liquefaciens Microbacterium liquefaciens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2X79 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2X79 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]] 3.8Å</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=2x79 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2x79 OCA], [https://pdbe.org/2x79 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2x79 RCSB], [https://www.ebi.ac.uk/pdbsum/2x79 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2x79 ProSAT]</span></td></tr> | ||
| + | </table> | ||
| + | == Function == | ||
| + | [https://www.uniprot.org/uniprot/HYUP_MICLQ HYUP_MICLQ] Nucleobase-proton symporter that mediates the sodium-dependent binding and uptake of 5-aryl-substituted hydantoin compounds (PubMed:16621827, PubMed:24952894). 5-indolyl methyl hydantoin and 5-benzyl hydantoin are the preferred substrates, with selectivity for a hydrophobic substituent in position 5 of hydantoin and for the L isomer over the D isomer (PubMed:16621827, PubMed:24952894).<ref>PMID:16621827</ref> <ref>PMID:24952894</ref> <ref>PMID:16116274</ref> | ||
| + | == 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/x7/2x79_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=2x79 ConSurf]. | ||
| + | <div style="clear:both"></div> | ||
| + | <div style="background-color:#fffaf0;"> | ||
| + | == Publication Abstract from PubMed == | ||
| + | The structure of the sodium-benzylhydantoin transport protein Mhp1 from Microbacterium liquefaciens comprises a five-helix inverted repeat, which is widespread among secondary transporters. Here, we report the crystal structure of an inward-facing conformation of Mhp1 at 3.8 angstroms resolution, complementing its previously described structures in outward-facing and occluded states. From analyses of the three structures and molecular dynamics simulations, we propose a mechanism for the transport cycle in Mhp1. Switching from the outward- to the inward-facing state, to effect the inward release of sodium and benzylhydantoin, is primarily achieved by a rigid body movement of transmembrane helices 3, 4, 8, and 9 relative to the rest of the protein. This forms the basis of an alternating access mechanism applicable to many transporters of this emerging superfamily. | ||
| - | + | Molecular basis of alternating access membrane transport by the sodium-hydantoin transporter Mhp1.,Shimamura T, Weyand S, Beckstein O, Rutherford NG, Hadden JM, Sharples D, Sansom MS, Iwata S, Henderson PJ, Cameron AD Science. 2010 Apr 23;328(5977):470-3. PMID:20413494<ref>PMID:20413494</ref> | |
| - | + | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |
| - | + | </div> | |
| - | + | <div class="pdbe-citations 2x79" style="background-color:#fffaf0;"></div> | |
| - | + | == References == | |
| - | + | <references/> | |
| - | == | + | __TOC__ |
| - | < | + | </StructureSection> |
| + | [[Category: Large Structures]] | ||
[[Category: Microbacterium liquefaciens]] | [[Category: Microbacterium liquefaciens]] | ||
| - | [[Category: Beckstein | + | [[Category: Beckstein O]] |
| - | [[Category: Cameron | + | [[Category: Cameron AD]] |
| - | [[Category: Hadden | + | [[Category: Hadden JM]] |
| - | [[Category: Henderson | + | [[Category: Henderson PJF]] |
| - | [[Category: Iwata | + | [[Category: Iwata S]] |
| - | [[Category: Rutherford | + | [[Category: Rutherford NG]] |
| - | [[Category: Sansom | + | [[Category: Sansom MSP]] |
| - | [[Category: Sharples | + | [[Category: Sharples D]] |
| - | [[Category: Shimamura | + | [[Category: Shimamura T]] |
| - | [[Category: Weyand | + | [[Category: Weyand S]] |
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| - | + | ||
Current revision
Inward facing conformation of Mhp1
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