1eso: Difference between revisions
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New page: left|200px<br /> <applet load="1eso" size="450" color="white" frame="true" align="right" spinBox="true" caption="1eso, resolution 2.0Å" /> '''MONOMERIC CU,ZN SUPE... |
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== | ==MONOMERIC CU,ZN SUPEROXIDE DISMUTASE FROM ESCHERICHIA COLI== | ||
The first three-dimensional structure of a functional monomeric Cu, Zn | <StructureSection load='1eso' size='340' side='right'caption='[[1eso]], [[Resolution|resolution]] 2.00Å' scene=''> | ||
== Structural highlights == | |||
<table><tr><td colspan='2'>[[1eso]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Escherichia_coli Escherichia coli]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1ESO OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1ESO 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]] 2Å</td></tr> | |||
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=CU:COPPER+(II)+ION'>CU</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</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=1eso FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1eso OCA], [https://pdbe.org/1eso PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1eso RCSB], [https://www.ebi.ac.uk/pdbsum/1eso PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1eso ProSAT]</span></td></tr> | |||
</table> | |||
== Function == | |||
[https://www.uniprot.org/uniprot/SODC_ECOLI SODC_ECOLI] Destroys radicals which are normally produced within the cells and which are toxic to biological systems. | |||
== 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/es/1eso_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=1eso ConSurf]. | |||
<div style="clear:both"></div> | |||
<div style="background-color:#fffaf0;"> | |||
== Publication Abstract from PubMed == | |||
The first three-dimensional structure of a functional monomeric Cu, Zn superoxide dismutase (from Escherichia coli, E_SOD) is reported at 2.0 A resolution (R-factor=16.8%). Compared to the homologous eukaryotic enzymes, E_SOD displays a perturbed antiparallel beta-barrel structure. The most striking structural features observed include extended amino acid insertions in the surface 1, 2-loop and S-S subloop, modification of the disulfide bridge connection, and loss of functional electrostatic residues, suggesting a modified control of substrate steering toward the catalytic center. The active site Cu2+ displays a distorted coordination sphere due to an unusually long bond to the metal-bridging residue His61. Inspection of the crystal packing does not show regions of extended contact indicative of a dimeric assembly. The molecular surface region involved in subunit dimerization in eukaryotic superoxide dismutases is structurally altered in E_SOD and displays a net polar nature. | |||
Unique structural features of the monomeric Cu,Zn superoxide dismutase from Escherichia coli, revealed by X-ray crystallography.,Pesce A, Capasso C, Battistoni A, Folcarelli S, Rotilio G, Desideri A, Bolognesi M J Mol Biol. 1997 Dec 5;274(3):408-20. PMID:9405149<ref>PMID:9405149</ref> | |||
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |||
</div> | |||
<div class="pdbe-citations 1eso" style="background-color:#fffaf0;"></div> | |||
==See Also== | |||
*[[Superoxide dismutase 3D structures|Superoxide dismutase 3D structures]] | |||
== References == | |||
<references/> | |||
__TOC__ | |||
</StructureSection> | |||
[[Category: Escherichia coli]] | [[Category: Escherichia coli]] | ||
[[Category: | [[Category: Large Structures]] | ||
[[Category: Battistoni | [[Category: Battistoni A]] | ||
[[Category: Bolognesi | [[Category: Bolognesi M]] | ||
[[Category: Capasso | [[Category: Capasso C]] | ||
[[Category: Desideri | [[Category: Desideri A]] | ||
[[Category: Folcarelli | [[Category: Folcarelli S]] | ||
[[Category: Pesce | [[Category: Pesce A]] | ||
[[Category: Rotilio | [[Category: Rotilio G]] | ||
