2gx0: Difference between revisions

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'''Crystal structural and functional analysis of GFP-like fluorescent protein'''<br />


==About this Structure==
==Crystal structural and functional analysis of GFP-like fluorescent protein==
2GX0 is a [http://en.wikipedia.org/wiki/Single_protein Single protein] structure of sequence from [http://en.wikipedia.org/wiki/Echinophyllia_sp._sc22 Echinophyllia sp. sc22]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2GX0 OCA].  
<StructureSection load='2gx0' size='340' side='right'caption='[[2gx0]], [[Resolution|resolution]] 1.90&Aring;' scene=''>
[[Category: Echinophyllia sp. sc22]]
== Structural highlights ==
[[Category: Single protein]]
<table><tr><td colspan='2'>[[2gx0]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Echinophyllia_sp._SC22 Echinophyllia sp. SC22]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2GX0 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2GX0 FirstGlance]. <br>
[[Category: Hwang, K.Y.]]
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.9&#8491;</td></tr>
[[Category: Nam, K.H.]]
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=GYC:[(4Z)-2-[(1R)-1-AMINO-2-MERCAPTOETHYL]-4-(4-HYDROXYBENZYLIDENE)-5-OXO-4,5-DIHYDRO-1H-IMIDAZOL-1-YL]ACETIC+ACID'>GYC</scene></td></tr>
[[Category: Park, S.Y.]]
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=2gx0 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2gx0 OCA], [https://pdbe.org/2gx0 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2gx0 RCSB], [https://www.ebi.ac.uk/pdbsum/2gx0 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2gx0 ProSAT]</span></td></tr>
[[Category: Sugiyama, K.]]
</table>
[[Category: b-can]]
== Function ==
[[Category: fluorescence]]
[https://www.uniprot.org/uniprot/Q5TLG6_9CNID Q5TLG6_9CNID]  
[[Category: photoswitching]]
== 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/gx/2gx0_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=2gx0 ConSurf].
<div style="clear:both"></div>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
The photoswitching behavior of green fluorescent proteins (GFPs) or GFP-like proteins is increasingly recognized as a new technique for optical marking. Recently, Ando and his colleagues developed a new green fluorescent protein Dronpa, which possesses the unique photochromic property of being photoswitchable in a non-destructive manner. To better understand this mechanism, we determined the crystal structures of a new GFP Dronpa and its mutant C62S, at 1.9 Angstroms and 1.8 Angstroms, respectively. Determination of the structures demonstrates that a unique hydrogen-bonding network and the sulfur atom of the chromophore are critical to the photoswitching property of Dronpa. Reversible photoswitching was lost in cells expressing the Dronpa-C62S upon repetitive irradiation compared to the native protein. Structural and mutational analyses reveal the chemical basis for the functional properties of photoswitchable fluorescent proteins and provide the basis for subsequent coherent engineering of this subfamily of Dronpa homologs.


''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Wed Jan 23 15:20:26 2008''
Structural characterization of the photoswitchable fluorescent protein Dronpa-C62S.,Nam KH, Kwon OY, Sugiyama K, Lee WH, Kim YK, Song HK, Kim EE, Park SY, Jeon H, Hwang KY Biochem Biophys Res Commun. 2007 Mar 23;354(4):962-7. Epub 2007 Jan 24. PMID:17276392<ref>PMID:17276392</ref>
 
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 2gx0" style="background-color:#fffaf0;"></div>
 
==See Also==
*[[Dronpa|Dronpa]]
*[[Green Fluorescent Protein 3D structures|Green Fluorescent Protein 3D structures]]
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Echinophyllia sp. SC22]]
[[Category: Large Structures]]
[[Category: Hwang KY]]
[[Category: Nam K-H]]
[[Category: Park S-Y]]
[[Category: Sugiyama K]]

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