5g2c: Difference between revisions
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==The crystal structure of light-driven chloride pump ClR (T102D) mutant at pH 4.5.== | ==The crystal structure of light-driven chloride pump ClR (T102D) mutant at pH 4.5.== | ||
<StructureSection load='5g2c' size='340' side='right' caption='[[5g2c]], [[Resolution|resolution]] 2.31Å' scene=''> | <StructureSection load='5g2c' size='340' side='right'caption='[[5g2c]], [[Resolution|resolution]] 2.31Å' scene=''> | ||
== Structural highlights == | == Structural highlights == | ||
<table><tr><td colspan='2'>[[5g2c]] is a 1 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5G2C OCA]. For a <b>guided tour on the structure components</b> use [http:// | <table><tr><td colspan='2'>[[5g2c]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Flavobacteria_bacterium_s1-08 Flavobacteria bacterium s1-08]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5G2C OCA]. For a <b>guided tour on the structure components</b> use [http://proteopedia.org/fgij/fg.htm?mol=5G2C FirstGlance]. <br> | ||
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=CL:CHLORIDE+ION'>CL</scene>, <scene name='pdbligand=OLA:OLEIC+ACID'>OLA</scene>, <scene name='pdbligand=PEG:DI(HYDROXYETHYL)ETHER'>PEG</scene>, <scene name='pdbligand=RET:RETINAL'>RET</scene></td></tr> | </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=OLA:OLEIC+ACID'>OLA</scene>, <scene name='pdbligand=PEG:DI(HYDROXYETHYL)ETHER'>PEG</scene>, <scene name='pdbligand=RET:RETINAL'>RET</scene></td></tr> | ||
<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[5g28|5g28]], [[5g29|5g29]], [[5g2a|5g2a]], [[5g2d|5g2d]]</td></tr> | <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[5g28|5g28]], [[5g29|5g29]], [[5g2a|5g2a]], [[5g2d|5g2d]]</td></tr> | ||
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http:// | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://proteopedia.org/fgij/fg.htm?mol=5g2c FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5g2c OCA], [http://pdbe.org/5g2c PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=5g2c RCSB], [http://www.ebi.ac.uk/pdbsum/5g2c PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=5g2c ProSAT]</span></td></tr> | ||
</table> | </table> | ||
<div style="background-color:#fffaf0;"> | <div style="background-color:#fffaf0;"> | ||
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</div> | </div> | ||
<div class="pdbe-citations 5g2c" style="background-color:#fffaf0;"></div> | <div class="pdbe-citations 5g2c" style="background-color:#fffaf0;"></div> | ||
==See Also== | |||
*[[Rhodopsin 3D structures|Rhodopsin 3D structures]] | |||
== References == | == References == | ||
<references/> | <references/> | ||
__TOC__ | __TOC__ | ||
</StructureSection> | </StructureSection> | ||
[[Category: Flavobacteria bacterium s1-08]] | |||
[[Category: Large Structures]] | |||
[[Category: Cha, J S]] | [[Category: Cha, J S]] | ||
[[Category: Cho, H S]] | [[Category: Cho, H S]] | ||
Revision as of 09:36, 13 May 2020
The crystal structure of light-driven chloride pump ClR (T102D) mutant at pH 4.5.The crystal structure of light-driven chloride pump ClR (T102D) mutant at pH 4.5.
Structural highlights
Publication Abstract from PubMedA novel light-driven chloride-pumping rhodopsin (ClR) containing an 'NTQ motif' in its putative ion conduction pathway has been discovered and functionally characterized in a genomic analysis study of a marine bacterium. Here we report the crystal structure of ClR from the flavobacterium Nonlabens marinus S1-08(T) determined under two conditions at 2.0 and 1.56 A resolutions. The structures reveal two chloride-binding sites, one around the protonated Schiff base and the other on a cytoplasmic loop. We identify a '3 omega motif' formed by three non-consecutive aromatic amino acids that is correlated with the B-C loop orientation. Detailed ClR structural analyses with functional studies in E. coli reveal the chloride ion transduction pathway. Our results help understand the molecular mechanism and physiological role of ClR and provide a structural basis for optogenetic applications. Crystal structure and functional characterization of a light-driven chloride pump having an NTQ motif.,Kim K, Kwon SK, Jun SH, Cha JS, Kim H, Lee W, Kim JF, Cho HS Nat Commun. 2016 Aug 24;7:12677. doi: 10.1038/ncomms12677. PMID:27554809[1] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See AlsoReferences
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