1h32: Difference between revisions
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==Reduced SoxAX complex from Rhodovulum sulfidophilum== | |||
<StructureSection load='1h32' size='340' side='right'caption='[[1h32]], [[Resolution|resolution]] 1.50Å' scene=''> | |||
== Structural highlights == | |||
<table><tr><td colspan='2'>[[1h32]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Rhodovulum_sulfidophilum Rhodovulum sulfidophilum]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1H32 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1H32 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]] 1.5Å</td></tr> | |||
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=CSS:S-MERCAPTOCYSTEINE'>CSS</scene>, <scene name='pdbligand=EDO:1,2-ETHANEDIOL'>EDO</scene>, <scene name='pdbligand=HEC:HEME+C'>HEC</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=1h32 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1h32 OCA], [https://pdbe.org/1h32 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1h32 RCSB], [https://www.ebi.ac.uk/pdbsum/1h32 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1h32 ProSAT]</span></td></tr> | |||
</table> | |||
== Function == | |||
[https://www.uniprot.org/uniprot/Q939U4_RHOSU Q939U4_RHOSU] | |||
== 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/h3/1h32_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=1h32 ConSurf]. | |||
<div style="clear:both"></div> | |||
<div style="background-color:#fffaf0;"> | |||
== Publication Abstract from PubMed == | |||
Reduced inorganic sulfur compounds are utilized by many bacteria as electron donors to photosynthetic or respiratory electron transport chains. This metabolism is a key component of the biogeochemical sulfur cycle. The SoxAX protein is a heterodimeric c-type cytochrome involved in thiosulfate oxidation. The crystal structures of SoxAX from the photosynthetic bacterium Rhodovulum sulfidophilum have been solved at 1.75 A resolution in the oxidized state and at 1.5 A resolution in the dithionite-reduced state, providing the first structural insights into the enzymatic oxidation of thiosulfate. The SoxAX active site contains a haem with unprecedented cysteine persulfide (cysteine sulfane) coordination. This unusual post-translational modification is also seen in sulfurtransferases such as rhodanese. Intriguingly, this enzyme shares further active site characteristics with SoxAX such as an adjacent conserved arginine residue and a strongly positive electrostatic potential. These similarities have allowed us to suggest a catalytic mechanism for enzymatic thiosulfate oxidation. The atomic coordinates and experimental structure factors have been deposited in the PDB with the accession codes 1H31, 1H32 and 1H33. | |||
Structural basis for the oxidation of thiosulfate by a sulfur cycle enzyme.,Bamford VA, Bruno S, Rasmussen T, Appia-Ayme C, Cheesman MR, Berks BC, Hemmings AM EMBO J. 2002 Nov 1;21(21):5599-610. PMID:12411478<ref>PMID:12411478</ref> | |||
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |||
</div> | |||
<div class="pdbe-citations 1h32" style="background-color:#fffaf0;"></div> | |||
== | ==See Also== | ||
*[[Cytochrome C 3D structures|Cytochrome C 3D structures]] | |||
== References == | |||
<references/> | |||
__TOC__ | |||
</StructureSection> | |||
== | [[Category: Large Structures]] | ||
[[Category: | |||
[[Category: Rhodovulum sulfidophilum]] | [[Category: Rhodovulum sulfidophilum]] | ||
[[Category: Appia-Ayme | [[Category: Appia-Ayme C]] | ||
[[Category: Bamford | [[Category: Bamford VA]] | ||
[[Category: Berks | [[Category: Berks BC]] | ||
[[Category: Bruno | [[Category: Bruno S]] | ||
[[Category: Cheesman | [[Category: Cheesman MR]] | ||
[[Category: Hemmings | [[Category: Hemmings AM]] | ||
[[Category: Rasmussen | [[Category: Rasmussen T]] | ||