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[[Image:1uis.gif|left|200px]]


{{Structure
==The 2.0 crystal structure of eqFP611, a far-red fluorescent protein from the sea anemone Entacmaea quadricolor==
|PDB= 1uis |SIZE=350|CAPTION= <scene name='initialview01'>1uis</scene>, resolution 2.0&Aring;
<StructureSection load='1uis' size='340' side='right'caption='[[1uis]], [[Resolution|resolution]] 2.00&Aring;' scene=''>
|SITE=  
== Structural highlights ==
|LIGAND= <scene name='pdbligand=ACY:ACETIC+ACID'>ACY</scene>, <scene name='pdbligand=CA:CALCIUM+ION'>CA</scene>, <scene name='pdbligand=NRQ:[(4R,5R)-2-[(1S)-1-AMINO-3-(METHYLSULFANYL)PROPYL]-5-HYDROXY-4-(4-HYDROXYBENZYL)-4,5-DIHYDRO-1H-IMIDAZOL-1-YL]ACETALDEHYDE'>NRQ</scene>
<table><tr><td colspan='2'>[[1uis]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Entacmaea_quadricolor Entacmaea quadricolor]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1UIS OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1UIS FirstGlance]. <br>
|ACTIVITY=  
</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&#8491;</td></tr>
|GENE=  
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=ACY:ACETIC+ACID'>ACY</scene>, <scene name='pdbligand=CA:CALCIUM+ION'>CA</scene>, <scene name='pdbligand=NRQ:{(4Z)-4-(4-HYDROXYBENZYLIDENE)-2-[3-(METHYLTHIO)PROPANIMIDOYL]-5-OXO-4,5-DIHYDRO-1H-IMIDAZOL-1-YL}ACETIC+ACID'>NRQ</scene></td></tr>
|DOMAIN=
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1uis FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1uis OCA], [https://pdbe.org/1uis PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1uis RCSB], [https://www.ebi.ac.uk/pdbsum/1uis PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1uis ProSAT]</span></td></tr>
|RELATEDENTRY=[[1ggx|1GGX]], [[1mou|1MOU]], [[1mov|1MOV]]
</table>
|RESOURCES=<span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1uis FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1uis OCA], [http://www.ebi.ac.uk/pdbsum/1uis PDBsum], [http://www.rcsb.org/pdb/explore.do?structureId=1uis RCSB]</span>
== Function ==
}}
[https://www.uniprot.org/uniprot/RFP_ENTQU RFP_ENTQU] Pigment protein.<ref>PMID:12185250</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/ui/1uis_consurf.spt"</scriptWhenChecked>
    <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.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=1uis ConSurf].
<div style="clear:both"></div>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
We have crystallized and subsequently determined to 2.0-A resolution the crystal structure of eqFP611, a far red fluorescent protein from the sea anemone Entacmaea quadricolor. The structure of the protomer, which adopts a beta-can topology, is similar to that of the related monomeric green fluorescent protein (GFP). The quaternary structure of eqFP611, a tetramer exhibiting 222 symmetry, is similar to that observed for the more closely related red fluorescent protein DsRed and the chromoprotein Rtms5. The unique chromophore sequence (Met63-Tyr64-Gly65) of eqFP611, adopts a coplanar and trans conformation within the interior of the beta-can fold. Accordingly, the eqFP611 chromophore adopts a significantly different conformation in comparison to the chromophore conformation observed in GFP, DsRed, and Rtms5. The coplanar chromophore conformation and its immediate environment provide a structural basis for the far red, highly fluorescent nature of eqFP611. The eqFP611 structure extends our knowledge on the range of conformations a chromophore can adopt within closely related members of the green fluorescent protein family.


'''The 2.0 crystal structure of eqFP611, a far-red fluorescent protein from the sea anemone Entacmaea quadricolor'''
The 2.0-A crystal structure of eqFP611, a far red fluorescent protein from the sea anemone Entacmaea quadricolor.,Petersen J, Wilmann PG, Beddoe T, Oakley AJ, Devenish RJ, Prescott M, Rossjohn J J Biol Chem. 2003 Nov 7;278(45):44626-31. Epub 2003 Aug 8. PMID:12909624<ref>PMID:12909624</ref>


From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 1uis" style="background-color:#fffaf0;"></div>


==Overview==
==See Also==
We have crystallized and subsequently determined to 2.0-A resolution the crystal structure of eqFP611, a far red fluorescent protein from the sea anemone Entacmaea quadricolor. The structure of the protomer, which adopts a beta-can topology, is similar to that of the related monomeric green fluorescent protein (GFP). The quaternary structure of eqFP611, a tetramer exhibiting 222 symmetry, is similar to that observed for the more closely related red fluorescent protein DsRed and the chromoprotein Rtms5. The unique chromophore sequence (Met63-Tyr64-Gly65) of eqFP611, adopts a coplanar and trans conformation within the interior of the beta-can fold. Accordingly, the eqFP611 chromophore adopts a significantly different conformation in comparison to the chromophore conformation observed in GFP, DsRed, and Rtms5. The coplanar chromophore conformation and its immediate environment provide a structural basis for the far red, highly fluorescent nature of eqFP611. The eqFP611 structure extends our knowledge on the range of conformations a chromophore can adopt within closely related members of the green fluorescent protein family.
*[[Green Fluorescent Protein 3D structures|Green Fluorescent Protein 3D structures]]
 
== References ==
==About this Structure==
<references/>
1UIS is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Entacmaea_quadricolor Entacmaea quadricolor]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1UIS OCA].
__TOC__
 
</StructureSection>
==Reference==
The 2.0-A crystal structure of eqFP611, a far red fluorescent protein from the sea anemone Entacmaea quadricolor., Petersen J, Wilmann PG, Beddoe T, Oakley AJ, Devenish RJ, Prescott M, Rossjohn J, J Biol Chem. 2003 Nov 7;278(45):44626-31. Epub 2003 Aug 8. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/12909624 12909624]
[[Category: Entacmaea quadricolor]]
[[Category: Entacmaea quadricolor]]
[[Category: Single protein]]
[[Category: Large Structures]]
[[Category: Beddoe, T.]]
[[Category: Beddoe T]]
[[Category: Devenish, R J.]]
[[Category: Devenish RJ]]
[[Category: Oakley, A J.]]
[[Category: Oakley AJ]]
[[Category: Petersen, J.]]
[[Category: Petersen J]]
[[Category: Prescott, M.]]
[[Category: Prescott M]]
[[Category: Rossjohn, J.]]
[[Category: Rossjohn J]]
[[Category: Wilmann, P G.]]
[[Category: Wilmann PG]]
[[Category: luminescent protein]]
 
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