View source for 8a9s


==Crystal structure of Ca2+-discharged obelin in complex with coelenteramine-v==
<StructureSection load='8a9s' size='340' side='right'caption='[[8a9s]], [[Resolution|resolution]] 2.10&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[8a9s]] is a 2 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=8A9S OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=8A9S 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]] 2.1&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=DMS:DIMETHYL+SULFOXIDE'>DMS</scene>, <scene name='pdbligand=LK9:3-azanyl-2-(phenylmethyl)benzo[f]quinoxalin-8-ol'>LK9</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'>[https://proteopedia.org/fgij/fg.htm?mol=8a9s FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=8a9s OCA], [https://pdbe.org/8a9s PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=8a9s RCSB], [https://www.ebi.ac.uk/pdbsum/8a9s PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=8a9s ProSAT]</span></td></tr>
</table>
== Function ==
[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.
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</StructureSection>
[[Category: Large Structures]]
[[Category: Obelia longissima]]
[[Category: Borshchevskiy VI]]
[[Category: Bukhdrucker SS]]
[[Category: Dmitrieva DA]]
[[Category: Eremeeva EV]]
[[Category: Kovaleva MI]]
[[Category: Mishin AV]]
[[Category: Natashin PV]]
[[Category: Schevtsov MB]]
[[Category: Vysotski ES]]