1mou: Difference between revisions
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==Crystal structure of Coral pigment== | |||
<StructureSection load='1mou' size='340' side='right'caption='[[1mou]], [[Resolution|resolution]] 2.20Å' scene=''> | |||
| | == Structural highlights == | ||
<table><tr><td colspan='2'>[[1mou]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Montipora_efflorescens Montipora efflorescens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1MOU OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1MOU 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]] 2.2Å</td></tr> | |||
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=CRQ:[2-(3-CARBAMOYL-1-IMINO-PROPYL)-4-(4-HYDROXY-BENZYLIDENE)-5-OXO-4,5-DIHYDRO-IMIDAZOL-1-YL]-ACETIC+ACID'>CRQ</scene>, <scene name='pdbligand=IOD:IODIDE+ION'>IOD</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=1mou FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1mou OCA], [https://pdbe.org/1mou PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1mou RCSB], [https://www.ebi.ac.uk/pdbsum/1mou PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1mou ProSAT]</span></td></tr> | |||
</table> | |||
'' | == Function == | ||
[https://www.uniprot.org/uniprot/NFCP_MONEF NFCP_MONEF] Thought to play a role in photoprotection of the coral's resident symbiont microalgae's photosystems from photoinhibition caused by high light levels found near the surface of coral reefs.<ref>PMID:12595737</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/mo/1mou_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=1mou ConSurf]. | |||
<div style="clear:both"></div> | |||
<div style="background-color:#fffaf0;"> | |||
== Publication Abstract from PubMed == | |||
Reef-building corals contain host pigments, termed pocilloporins, that function to regulate the light environment of their resident microalgae by acting as a photoprotectant in excessive sunlight. We have determined the crystal structure of an intensely blue, nonfluorescent pocilloporin to 2.2 A resolution and a genetically engineered fluorescent variant to 2.4 A resolution. The pocilloporin chromophore structure adopts a markedly different conformation in comparison with the DsRed chromophore, despite the chromophore sequences (Gln-Tyr-Gly) being identical; the tyrosine ring of the pocilloporin chromophore is noncoplanar and in the trans configuration. Furthermore, the fluorescent variant adopted a noncoplanar chromophore conformation. The data presented here demonstrates that the conformation of the chromophore is highly dependent on its immediate environment. | Reef-building corals contain host pigments, termed pocilloporins, that function to regulate the light environment of their resident microalgae by acting as a photoprotectant in excessive sunlight. We have determined the crystal structure of an intensely blue, nonfluorescent pocilloporin to 2.2 A resolution and a genetically engineered fluorescent variant to 2.4 A resolution. The pocilloporin chromophore structure adopts a markedly different conformation in comparison with the DsRed chromophore, despite the chromophore sequences (Gln-Tyr-Gly) being identical; the tyrosine ring of the pocilloporin chromophore is noncoplanar and in the trans configuration. Furthermore, the fluorescent variant adopted a noncoplanar chromophore conformation. The data presented here demonstrates that the conformation of the chromophore is highly dependent on its immediate environment. | ||
The 2.2 A crystal structure of a pocilloporin pigment reveals a nonplanar chromophore conformation.,Prescott M, Ling M, Beddoe T, Oakley AJ, Dove S, Hoegh-Guldberg O, Devenish RJ, Rossjohn J Structure. 2003 Mar;11(3):275-84. PMID:12623015<ref>PMID:12623015</ref> | |||
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |||
</div> | |||
<div class="pdbe-citations 1mou" style="background-color:#fffaf0;"></div> | |||
== References == | |||
<references/> | |||
__TOC__ | |||
</StructureSection> | |||
[[Category: Large Structures]] | |||
[[Category: Montipora efflorescens]] | [[Category: Montipora efflorescens]] | ||
[[Category: Beddoe T]] | |||
[[Category: Beddoe | [[Category: Devenish RJ]] | ||
[[Category: Devenish | [[Category: Dove S]] | ||
[[Category: Dove | [[Category: Hoegh-Guldberg O]] | ||
[[Category: Hoegh-Guldberg | [[Category: Ling M]] | ||
[[Category: Ling | [[Category: Oakley AJ]] | ||
[[Category: Oakley | [[Category: Prescott M]] | ||
[[Category: Prescott | [[Category: Rossjohn J]] | ||
[[Category: Rossjohn | |||
Latest revision as of 07:30, 23 October 2024
Crystal structure of Coral pigment
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