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==Structure of Chloride ion pumping rhodopsin (ClR) with NTQ motif 100 ps after light activation (0.90mJ/mm2)== | ==Structure of Chloride ion pumping rhodopsin (ClR) with NTQ motif 100 ps after light activation (0.90mJ/mm2)== | ||
<StructureSection load='7crs' size='340' side='right'caption='[[7crs]]' scene=''> | <StructureSection load='7crs' size='340' side='right'caption='[[7crs]], [[Resolution|resolution]] 1.85Å' scene=''> | ||
== Structural highlights == | == Structural highlights == | ||
<table><tr><td colspan='2'>Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=7CRS OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=7CRS FirstGlance]. <br> | <table><tr><td colspan='2'>[[7crs]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Nonlabens_marinus_S1-08 Nonlabens marinus S1-08]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=7CRS OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=7CRS FirstGlance]. <br> | ||
</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=7crs FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=7crs OCA], [https://pdbe.org/7crs PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=7crs RCSB], [https://www.ebi.ac.uk/pdbsum/7crs PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=7crs ProSAT]</span></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]] 1.85Å</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=RET:RETINAL'>RET</scene></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=7crs FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=7crs OCA], [https://pdbe.org/7crs PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=7crs RCSB], [https://www.ebi.ac.uk/pdbsum/7crs PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=7crs ProSAT]</span></td></tr> | |||
</table> | </table> | ||
== Function == | |||
[https://www.uniprot.org/uniprot/W8VZW3_9FLAO W8VZW3_9FLAO] | |||
<div style="background-color:#fffaf0;"> | |||
== Publication Abstract from PubMed == | |||
Chloride ion-pumping rhodopsin (ClR) in some marine bacteria utilizes light energy to actively transport Cl(-) into cells. How the ClR initiates the transport is elusive. Here, we show the dynamics of ion transport observed with time-resolved serial femtosecond (fs) crystallography using the Linac Coherent Light Source. X-ray pulses captured structural changes in ClR upon flash illumination with a 550 nm fs-pumping laser. High-resolution structures for five time points (dark to 100 ps after flashing) reveal complex and coordinated dynamics comprising retinal isomerization, water molecule rearrangement, and conformational changes of various residues. Combining data from time-resolved spectroscopy experiments and molecular dynamics simulations, this study reveals that the chloride ion close to the Schiff base undergoes a dissociation-diffusion process upon light-triggered retinal isomerization. | |||
Early-stage dynamics of chloride ion-pumping rhodopsin revealed by a femtosecond X-ray laser.,Yun JH, Li X, Yue J, Park JH, Jin Z, Li C, Hu H, Shi Y, Pandey S, Carbajo S, Boutet S, Hunter MS, Liang M, Sierra RG, Lane TJ, Zhou L, Weierstall U, Zatsepin NA, Ohki M, Tame JRH, Park SY, Spence JCH, Zhang W, Schmidt M, Lee W, Liu H Proc Natl Acad Sci U S A. 2021 Mar 30;118(13). pii: 2020486118. doi:, 10.1073/pnas.2020486118. PMID:33753488<ref>PMID:33753488</ref> | |||
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |||
</div> | |||
<div class="pdbe-citations 7crs" style="background-color:#fffaf0;"></div> | |||
==See Also== | |||
*[[Rhodopsin 3D structures|Rhodopsin 3D structures]] | |||
== References == | |||
<references/> | |||
__TOC__ | __TOC__ | ||
</StructureSection> | </StructureSection> | ||
[[Category: Large Structures]] | [[Category: Large Structures]] | ||
[[Category: Nonlabens marinus S1-08]] | |||
[[Category: Lee WT]] | [[Category: Lee WT]] | ||
[[Category: Liu H]] | [[Category: Liu H]] | ||
[[Category: Schmidt M]] | [[Category: Schmidt M]] | ||
[[Category: Yun JH]] | [[Category: Yun JH]] | ||
Latest revision as of 19:14, 29 November 2023
Structure of Chloride ion pumping rhodopsin (ClR) with NTQ motif 100 ps after light activation (0.90mJ/mm2)Structure of Chloride ion pumping rhodopsin (ClR) with NTQ motif 100 ps after light activation (0.90mJ/mm2)
Structural highlights
FunctionPublication Abstract from PubMedChloride ion-pumping rhodopsin (ClR) in some marine bacteria utilizes light energy to actively transport Cl(-) into cells. How the ClR initiates the transport is elusive. Here, we show the dynamics of ion transport observed with time-resolved serial femtosecond (fs) crystallography using the Linac Coherent Light Source. X-ray pulses captured structural changes in ClR upon flash illumination with a 550 nm fs-pumping laser. High-resolution structures for five time points (dark to 100 ps after flashing) reveal complex and coordinated dynamics comprising retinal isomerization, water molecule rearrangement, and conformational changes of various residues. Combining data from time-resolved spectroscopy experiments and molecular dynamics simulations, this study reveals that the chloride ion close to the Schiff base undergoes a dissociation-diffusion process upon light-triggered retinal isomerization. Early-stage dynamics of chloride ion-pumping rhodopsin revealed by a femtosecond X-ray laser.,Yun JH, Li X, Yue J, Park JH, Jin Z, Li C, Hu H, Shi Y, Pandey S, Carbajo S, Boutet S, Hunter MS, Liang M, Sierra RG, Lane TJ, Zhou L, Weierstall U, Zatsepin NA, Ohki M, Tame JRH, Park SY, Spence JCH, Zhang W, Schmidt M, Lee W, Liu H Proc Natl Acad Sci U S A. 2021 Mar 30;118(13). pii: 2020486118. doi:, 10.1073/pnas.2020486118. PMID:33753488[1] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See AlsoReferences
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