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==Crystal structure of a Ca2+-discharged photoprotein: Implications for the mechanisms of the calcium trigger and the bioluminescence==
==Crystal structure of a Ca2+-discharged photoprotein: Implications for the mechanisms of the calcium trigger and the bioluminescence==
<StructureSection load='1s36' size='340' side='right' caption='[[1s36]], [[Resolution|resolution]] 1.96&Aring;' scene=''>
<StructureSection load='1s36' size='340' side='right'caption='[[1s36]], [[Resolution|resolution]] 1.96&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
<table><tr><td colspan='2'>[[1s36]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Black_sea_hydrozoan Black sea hydrozoan]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1S36 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1S36 FirstGlance]. <br>
<table><tr><td colspan='2'>[[1s36]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Obelia_longissima Obelia longissima]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1S36 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1S36 FirstGlance]. <br>
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=CEI:N-[3-BENZYL-5-(4-HYDROXYPHENYL)PYRAZIN-2-YL]-2-(4-HYDROXYPHENYL)ACETAMIDE'>CEI</scene>, <scene name='pdbligand=CL:CHLORIDE+ION'>CL</scene>, <scene name='pdbligand=GOL:GLYCEROL'>GOL</scene>, <scene name='pdbligand=NA:SODIUM+ION'>NA</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]] 1.96&#8491;</td></tr>
<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1el4|1el4]], [[1ej3|1ej3]], [[1jf0|1jf0]], [[1jf2|1jf2]], [[1qv0|1qv0]], [[1qv1|1qv1]]</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=CEI:N-[3-BENZYL-5-(4-HYDROXYPHENYL)PYRAZIN-2-YL]-2-(4-HYDROXYPHENYL)ACETAMIDE'>CEI</scene>, <scene name='pdbligand=CL:CHLORIDE+ION'>CL</scene>, <scene name='pdbligand=GOL:GLYCEROL'>GOL</scene>, <scene name='pdbligand=NA:SODIUM+ION'>NA</scene></td></tr>
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1s36 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1s36 OCA], [http://pdbe.org/1s36 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1s36 RCSB], [http://www.ebi.ac.uk/pdbsum/1s36 PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=1s36 ProSAT], [http://www.topsan.org/Proteins/SECSG/1s36 TOPSAN]</span></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=1s36 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1s36 OCA], [https://pdbe.org/1s36 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1s36 RCSB], [https://www.ebi.ac.uk/pdbsum/1s36 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1s36 ProSAT], [https://www.topsan.org/Proteins/SECSG/1s36 TOPSAN]</span></td></tr>
</table>
</table>
== Function ==
== Function ==
[[http://www.uniprot.org/uniprot/OBL_OBELO OBL_OBELO]] Ca(2+)-dependent bioluminescence photoprotein. Displays an emission peak at 470 nm (blue light). Trace amounts of calcium ion trigger the intramolecular oxidation of the chromophore, coelenterazine into coelenteramide and CO(2) with the concomitant emission of light.  
[https://www.uniprot.org/uniprot/OBL_OBELO OBL_OBELO] Ca(2+)-dependent bioluminescence photoprotein. Displays an emission peak at 470 nm (blue light). Trace amounts of calcium ion trigger the intramolecular oxidation of the chromophore, coelenterazine into coelenteramide and CO(2) with the concomitant emission of light.
== Evolutionary Conservation ==
== Evolutionary Conservation ==
[[Image:Consurf_key_small.gif|200px|right]]
[[Image:Consurf_key_small.gif|200px|right]]
Check<jmol>
Check<jmol>
   <jmolCheckbox>
   <jmolCheckbox>
     <scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/s3/1s36_consurf.spt"</scriptWhenChecked>
     <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/s3/1s36_consurf.spt"</scriptWhenChecked>
     <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
     <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
     <text>to colour the structure by Evolutionary Conservation</text>
     <text>to colour the structure by Evolutionary Conservation</text>
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__TOC__
__TOC__
</StructureSection>
</StructureSection>
[[Category: Black sea hydrozoan]]
[[Category: Large Structures]]
[[Category: Deng, L]]
[[Category: Obelia longissima]]
[[Category: Lee, J]]
[[Category: Deng L]]
[[Category: Liu, Z J]]
[[Category: Lee J]]
[[Category: Markova, S V]]
[[Category: Liu Z-J]]
[[Category: Rose, J]]
[[Category: Markova SV]]
[[Category: Structural genomic]]
[[Category: Rose J]]
[[Category: Vysotski, E S]]
[[Category: Vysotski ES]]
[[Category: Wang, B C]]
[[Category: Wang B-C]]
[[Category: Aequorin]]
[[Category: Bioluminescence]]
[[Category: Calcium binding]]
[[Category: Ef-hand]]
[[Category: Luminescent protein]]
[[Category: Obelin]]
[[Category: Photoprotein]]
[[Category: PSI, Protein structure initiative]]
[[Category: Secsg]]
Retrieved from "https://proteopedia.org/1s36"