6foi

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Current revision (06:25, 19 June 2019) (edit) (undo)
 
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==Human Cys57/156Ala superoxide dismutase-1 (SOD1), as isolated.==
==Human Cys57/156Ala superoxide dismutase-1 (SOD1), as isolated.==
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<StructureSection load='6foi' size='340' side='right' caption='[[6foi]], [[Resolution|resolution]] 2.00&Aring;' scene=''>
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<StructureSection load='6foi' size='340' side='right'caption='[[6foi]], [[Resolution|resolution]] 2.00&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
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<table><tr><td colspan='2'>[[6foi]] is a 12 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6FOI OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=6FOI FirstGlance]. <br>
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<table><tr><td colspan='2'>[[6foi]] is a 12 chain structure with sequence from [http://en.wikipedia.org/wiki/Human Human]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6FOI OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=6FOI FirstGlance]. <br>
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></td></tr>
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></td></tr>
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<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">SOD1 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 HUMAN])</td></tr>
<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Superoxide_dismutase Superoxide dismutase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=1.15.1.1 1.15.1.1] </span></td></tr>
<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Superoxide_dismutase Superoxide dismutase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=1.15.1.1 1.15.1.1] </span></td></tr>
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=6foi FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6foi OCA], [http://pdbe.org/6foi PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=6foi RCSB], [http://www.ebi.ac.uk/pdbsum/6foi PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=6foi ProSAT]</span></td></tr>
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=6foi FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6foi OCA], [http://pdbe.org/6foi PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=6foi RCSB], [http://www.ebi.ac.uk/pdbsum/6foi PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=6foi ProSAT]</span></td></tr>
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== Function ==
== Function ==
[[http://www.uniprot.org/uniprot/SODC_HUMAN SODC_HUMAN]] Destroys radicals which are normally produced within the cells and which are toxic to biological systems.
[[http://www.uniprot.org/uniprot/SODC_HUMAN SODC_HUMAN]] Destroys radicals which are normally produced within the cells and which are toxic to biological systems.
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<div style="background-color:#fffaf0;">
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== Publication Abstract from PubMed ==
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Superoxide dismutase-1 (SOD1) maturation comprises a string of posttranslational modifications which transform the nascent peptide into a stable and active enzyme. The successive folding, metal ion binding, and disulphide acquisition steps in this pathway can be catalysed through a direct interaction with the copper chaperone for SOD1 (CCS). This process confers enzymatic activity and reduces access to noncanonical, aggregation-prone states. Here, we present the functional mechanisms of human copper chaperone for SOD1 (hCCS)-catalysed SOD1 activation based on crystal structures of reaction precursors, intermediates, and products. Molecular recognition of immature SOD1 by hCCS is driven by several interface interactions, which provide an extended surface upon which SOD1 folds. Induced-fit complexation is reliant on the structural plasticity of the immature SOD1 disulphide sub-loop, a characteristic which contributes to misfolding and aggregation in neurodegenerative disease. Complexation specifically stabilises the SOD1 disulphide sub-loop, priming it and the active site for copper transfer, while delaying disulphide formation and complex dissociation. Critically, a single destabilising amino acid substitution within the hCCS interface reduces hCCS homodimer affinity, creating a pool of hCCS available to interact with immature SOD1. hCCS substrate specificity, segregation between solvent and biological membranes, and interaction transience are direct results of this substitution. In this way, hCCS-catalysed SOD1 maturation is finessed to minimise copper wastage and reduce production of potentially toxic SOD1 species.
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Molecular recognition and maturation of SOD1 by its evolutionarily destabilised cognate chaperone hCCS.,Sala FA, Wright GSA, Antonyuk SV, Garratt RC, Hasnain SS PLoS Biol. 2019 Feb 8;17(2):e3000141. doi: 10.1371/journal.pbio.3000141., eCollection 2019 Feb. PMID:30735496<ref>PMID:30735496</ref>
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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</div>
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<div class="pdbe-citations 6foi" style="background-color:#fffaf0;"></div>
== References ==
== References ==
<references/>
<references/>
__TOC__
__TOC__
</StructureSection>
</StructureSection>
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[[Category: Human]]
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[[Category: Large Structures]]
[[Category: Superoxide dismutase]]
[[Category: Superoxide dismutase]]
[[Category: Antonyuk, S V]]
[[Category: Antonyuk, S V]]

Current revision

Human Cys57/156Ala superoxide dismutase-1 (SOD1), as isolated.

PDB ID 6foi

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