2ji2: Difference between revisions
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<StructureSection load='2ji2' size='340' side='right'caption='[[2ji2]], [[Resolution|resolution]] 1.70Å' scene=''> | <StructureSection load='2ji2' size='340' side='right'caption='[[2ji2]], [[Resolution|resolution]] 1.70Å' scene=''> | ||
== Structural highlights == | == Structural highlights == | ||
<table><tr><td colspan='2'>[[2ji2]] is a 4 chain structure with sequence from [ | <table><tr><td colspan='2'>[[2ji2]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Atcc_33931 Atcc 33931]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2JI2 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2JI2 FirstGlance]. <br> | ||
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=CA:CALCIUM+ION'>CA</scene>, <scene name='pdbligand=FE:FE+(III)+ION'>FE</scene>, <scene name='pdbligand=FE2:FE+(II)+ION'>FE2</scene>, <scene name='pdbligand=NO3:NITRATE+ION'>NO3</scene></td></tr> | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=CA:CALCIUM+ION'>CA</scene>, <scene name='pdbligand=FE:FE+(III)+ION'>FE</scene>, <scene name='pdbligand=FE2:FE+(II)+ION'>FE2</scene>, <scene name='pdbligand=NO3:NITRATE+ION'>NO3</scene></td></tr> | ||
<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1vzg|1vzg]], [[1vzh|1vzh]], [[1vzi|1vzi]], [[2ji1|2ji1]], [[2ji3|2ji3]]</td></tr> | <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat"><div style='overflow: auto; max-height: 3em;'>[[1vzg|1vzg]], [[1vzh|1vzh]], [[1vzi|1vzi]], [[2ji1|2ji1]], [[2ji3|2ji3]]</div></td></tr> | ||
<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">dfx, rbo, Deba_2050 ([ | <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">dfx, rbo, Deba_2050 ([https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=453230 ATCC 33931])</td></tr> | ||
<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[ | <tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[https://en.wikipedia.org/wiki/Superoxide_reductase Superoxide reductase], with EC number [https://www.brenda-enzymes.info/php/result_flat.php4?ecno=1.15.1.2 1.15.1.2] </span></td></tr> | ||
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[ | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=2ji2 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2ji2 OCA], [https://pdbe.org/2ji2 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2ji2 RCSB], [https://www.ebi.ac.uk/pdbsum/2ji2 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2ji2 ProSAT]</span></td></tr> | ||
</table> | </table> | ||
== Function == | == Function == | ||
[[ | [[https://www.uniprot.org/uniprot/DFX_DESB2 DFX_DESB2]] Catalyzes the one-electron reduction of superoxide anion radical to hydrogen peroxide at a nonheme ferrous iron center. Plays a fundamental role in case of oxidative stress via its superoxide detoxification activity.<ref>PMID:10617593</ref> | ||
== Evolutionary Conservation == | == Evolutionary Conservation == | ||
[[Image:Consurf_key_small.gif|200px|right]] | [[Image:Consurf_key_small.gif|200px|right]] | ||
Revision as of 14:27, 31 March 2021
X-ray structure of E114A mutant of superoxide reductase from Desulfoarculus baarsii in the native, reduced formX-ray structure of E114A mutant of superoxide reductase from Desulfoarculus baarsii in the native, reduced form
Structural highlights
Function[DFX_DESB2] Catalyzes the one-electron reduction of superoxide anion radical to hydrogen peroxide at a nonheme ferrous iron center. Plays a fundamental role in case of oxidative stress via its superoxide detoxification activity.[1] Evolutionary Conservation Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf. Publication Abstract from PubMedIron-peroxide intermediates are central in the reaction cycle of many iron-containing biomolecules. We trapped iron(III)-(hydro)peroxo species in crystals of superoxide reductase (SOR), a nonheme mononuclear iron enzyme that scavenges superoxide radicals. X-ray diffraction data at 1.95 angstrom resolution and Raman spectra recorded in crystallo revealed iron-(hydro)peroxo intermediates with the (hydro)peroxo group bound end-on. The dynamic SOR active site promotes the formation of transient hydrogen bond networks, which presumably assist the cleavage of the iron-oxygen bond in order to release the reaction product, hydrogen peroxide. Raman-assisted crystallography reveals end-on peroxide intermediates in a nonheme iron enzyme.,Katona G, Carpentier P, Niviere V, Amara P, Adam V, Ohana J, Tsanov N, Bourgeois D Science. 2007 Apr 20;316(5823):449-53. PMID:17446401[2] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See AlsoReferences
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