3t5w

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{{STRUCTURE_3t5w| PDB=3t5w | SCENE= }}
 
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===2ME modified human SOD1===
 
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{{ABSTRACT_PUBMED_22804629}}
 
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==Disease==
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==2ME modified human SOD1==
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[[http://www.uniprot.org/uniprot/SODC_HUMAN SODC_HUMAN]] Defects in SOD1 are the cause of amyotrophic lateral sclerosis type 1 (ALS1) [MIM:[http://omim.org/entry/105400 105400]]. ALS1 is a familial form of amyotrophic lateral sclerosis, a neurodegenerative disorder affecting upper and lower motor neurons and resulting in fatal paralysis. Sensory abnormalities are absent. Death usually occurs within 2 to 5 years. The etiology of amyotrophic lateral sclerosis is likely to be multifactorial, involving both genetic and environmental factors. The disease is inherited in 5-10% of cases leading to familial forms.<ref>PMID:12963370</ref><ref>PMID:19741096</ref><ref>PMID:8528216</ref><ref>PMID:8682505</ref><ref>PMID:9541385</ref><ref>PMID:12754496</ref><ref>PMID:15056757</ref><ref>PMID:18378676</ref>[:]<ref>PMID:8446170</ref><ref>PMID:8351519</ref><ref>PMID:8179602</ref><ref>PMID:7980516</ref><ref>PMID:8069312</ref><ref>PMID:7951252</ref><ref>PMID:7881433</ref><ref>PMID:7836951</ref><ref>PMID:7997024</ref><ref>PMID:7870076</ref><ref>PMID:7887412</ref><ref>PMID:7795609</ref><ref>PMID:7655468</ref><ref>PMID:7655469</ref><ref>PMID:7655471</ref><ref>PMID:7700376</ref><ref>PMID:7647793</ref><ref>PMID:7501156</ref><ref>PMID:7496169</ref><ref>PMID:8938700</ref><ref>PMID:8907321</ref><ref>PMID:8990014</ref><ref>PMID:9101297</ref><ref>PMID:9455977</ref><ref>PMID:10732812</ref><ref>PMID:9131652</ref><ref>PMID:10400992</ref><ref>PMID:10430435</ref><ref>PMID:11535232</ref><ref>PMID:11369193</ref><ref>PMID:12402272</ref><ref>PMID:12145308</ref><ref>PMID:14506936</ref><ref>PMID:18552350</ref><ref>PMID:18301754</ref><ref>PMID:21247266</ref><ref>PMID:21220647</ref>
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<StructureSection load='3t5w' size='340' side='right'caption='[[3t5w]], [[Resolution|resolution]] 1.80&Aring;' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[3t5w]] is a 12 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3T5W OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3T5W FirstGlance]. <br>
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</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.8&#8491;</td></tr>
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<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=CME:S,S-(2-HYDROXYETHYL)THIOCYSTEINE'>CME</scene>, <scene name='pdbligand=CU1:COPPER+(I)+ION'>CU1</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></td></tr>
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<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=3t5w FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3t5w OCA], [https://pdbe.org/3t5w PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3t5w RCSB], [https://www.ebi.ac.uk/pdbsum/3t5w PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3t5w ProSAT]</span></td></tr>
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</table>
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== Disease ==
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[https://www.uniprot.org/uniprot/SODC_HUMAN SODC_HUMAN] Defects in SOD1 are the cause of amyotrophic lateral sclerosis type 1 (ALS1) [MIM:[https://omim.org/entry/105400 105400]. ALS1 is a familial form of amyotrophic lateral sclerosis, a neurodegenerative disorder affecting upper and lower motor neurons and resulting in fatal paralysis. Sensory abnormalities are absent. Death usually occurs within 2 to 5 years. The etiology of amyotrophic lateral sclerosis is likely to be multifactorial, involving both genetic and environmental factors. The disease is inherited in 5-10% of cases leading to familial forms.<ref>PMID:12963370</ref> <ref>PMID:19741096</ref> <ref>PMID:8528216</ref> <ref>PMID:8682505</ref> <ref>PMID:9541385</ref> <ref>PMID:12754496</ref> <ref>PMID:15056757</ref> <ref>PMID:18378676</ref> [:]<ref>PMID:8446170</ref> <ref>PMID:8351519</ref> <ref>PMID:8179602</ref> <ref>PMID:7980516</ref> <ref>PMID:8069312</ref> <ref>PMID:7951252</ref> <ref>PMID:7881433</ref> <ref>PMID:7836951</ref> <ref>PMID:7997024</ref> <ref>PMID:7870076</ref> <ref>PMID:7887412</ref> <ref>PMID:7795609</ref> <ref>PMID:7655468</ref> <ref>PMID:7655469</ref> <ref>PMID:7655471</ref> <ref>PMID:7700376</ref> <ref>PMID:7647793</ref> <ref>PMID:7501156</ref> <ref>PMID:7496169</ref> <ref>PMID:8938700</ref> <ref>PMID:8907321</ref> <ref>PMID:8990014</ref> <ref>PMID:9101297</ref> <ref>PMID:9455977</ref> <ref>PMID:10732812</ref> <ref>PMID:9131652</ref> <ref>PMID:10400992</ref> <ref>PMID:10430435</ref> <ref>PMID:11535232</ref> <ref>PMID:11369193</ref> <ref>PMID:12402272</ref> <ref>PMID:12145308</ref> <ref>PMID:14506936</ref> <ref>PMID:18552350</ref> <ref>PMID:18301754</ref> <ref>PMID:21247266</ref> <ref>PMID:21220647</ref>
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== Function ==
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[https://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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Cu,Zn superoxide dismutase (SOD1) is implicated in familial amylotrophic lateral sclerosis through the accumulation of misfolded proteins that are toxic to neuronal cells. Loop VI (residues 102-115) of the protein is at the dimer interface and could play a critical role in stability. The free cysteine residue, Cys111 in the loop, is readily oxidized and alkylated. We have found that modification of this Cys111 with beta-mercaptoethanol (2-ME; 2-ME-SOD1) stabilizes the protein and the mechanism may provide insights into destabilization and the formation of aggregated proteins. Here we determined the crystal structure of 2-ME-SOD1 and find that the 2-ME moieties in both subunits interact asymmetrically at the dimer interface and that there is an asymmetric configuration of segment Gly108 to Cys111 in loop VI. One loop VI of the dimer forms a 310-helix (Gly108 to His110) within a unique beta-bridge stabilized by a hydrogen bond between Ser105-NH and His110-CO, while the other forms a beta-turn without the H-bond. The H-bond (H-type) and H-bond free (F-type) configurations are also seen in some wild-type and mutant human SOD1s in the Protein Data Bank suggesting that they are interconvertible and an intrinsic property of SOD1s. The two structures serve as a basis for classification of these proteins and hopefully a guide to their stability and role in pathophysiology.
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==Function==
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Structural switching of Cu,Zn-superoxide dismutases at loop VI: Insights from the crystal structure of beta-mercaptoethanol modified enzyme.,Ihara K, Fujiwara N, Yamaguchi Y, Torigoe H, Wakatsuki S, Taniguchi N, Suzuki K Biosci Rep. 2012 Jul 18. PMID:22804629<ref>PMID:22804629</ref>
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[[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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==About this Structure==
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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[[3t5w]] is a 12 chain structure with sequence from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3T5W OCA].
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</div>
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<div class="pdbe-citations 3t5w" style="background-color:#fffaf0;"></div>
==See Also==
==See Also==
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*[[Superoxide Dismutase|Superoxide Dismutase]]
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*[[Superoxide dismutase 3D structures|Superoxide dismutase 3D structures]]
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== References ==
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==Reference==
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<references/>
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<ref group="xtra">PMID:022804629</ref><references group="xtra"/><references/>
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__TOC__
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</StructureSection>
[[Category: Homo sapiens]]
[[Category: Homo sapiens]]
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[[Category: Superoxide dismutase]]
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[[Category: Large Structures]]
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[[Category: Fujiwara, N.]]
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[[Category: Fujiwara N]]
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[[Category: Ihara, K.]]
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[[Category: Ihara K]]
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[[Category: Suzuki, K.]]
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[[Category: Suzuki K]]
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[[Category: Taniguchi, N.]]
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[[Category: Taniguchi N]]
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[[Category: Torigoe, H.]]
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[[Category: Torigoe H]]
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[[Category: Wakatsuki, S.]]
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[[Category: Wakatsuki S]]
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[[Category: Yamaguchi, Y.]]
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[[Category: Yamaguchi Y]]
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[[Category: 2me modification at cys111]]
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[[Category: Oxidoreductase]]
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Current revision

2ME modified human SOD1

PDB ID 3t5w

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