3ztl: Difference between revisions

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[[Image:3ztl.jpg|left|200px]]
==Crystal structure of decameric form of Peroxiredoxin I from Schistosoma mansoni==
<StructureSection load='3ztl' size='340' side='right' caption='[[3ztl]], [[Resolution|resolution]] 3.00&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[3ztl]] is a 10 chain structure with sequence from [http://en.wikipedia.org/wiki/Schistosoma_mansoni Schistosoma mansoni]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3ZTL OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3ZTL FirstGlance]. <br>
</td></tr><tr><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Peroxiredoxin Peroxiredoxin], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=1.11.1.15 1.11.1.15] </span></td></tr>
<tr><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3ztl FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3ztl OCA], [http://www.rcsb.org/pdb/explore.do?structureId=3ztl RCSB], [http://www.ebi.ac.uk/pdbsum/3ztl PDBsum]</span></td></tr>
<table>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
2-Cys peroxiredoxins (Prxs) play two different roles depending on the physiological status of the cell. They are thioredoxin-dependent peroxidases under low oxidative stress and ATP-independent chaperones upon exposure to high peroxide concentrations. These alternative functions have been associated with changes in the oligomerization state from low-(LMW) to high-molecular-weight (HMW) species. Here we present the structures of Schistosoma mansoni PrxI in both states: the LMW decamer and the HMW 20-mer formed by two stacked decamers. The latter is the structure of a 2-Cys Prx chaperonic form. Comparison of the structures sheds light on the mechanism by which chemical stressors, such as high H(2)O(2) concentration and acidic pH, are sensed and translated into a functional switch in this protein family. We also propose a model to account for the in vivo formation of long filaments of stacked Prx rings.


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Moonlighting by different stressors: crystal structure of the chaperone species of a 2-cys peroxiredoxin.,Saccoccia F, Di Micco P, Boumis G, Brunori M, Koutris I, Miele AE, Morea V, Sriratana P, Williams DL, Bellelli A, Angelucci F Structure. 2012 Mar 7;20(3):429-39. PMID:22405002<ref>PMID:22405002</ref>
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===Crystal structure of decameric form of Peroxiredoxin I from Schistosoma mansoni===
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
 
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== References ==
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==About this Structure==
[[3ztl]] is a 10 chain structure with sequence from [http://en.wikipedia.org/wiki/Schistosoma_mansoni Schistosoma mansoni]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3ZTL OCA].
 
==Reference==
<ref group="xtra">PMID:022405002</ref><references group="xtra"/>
[[Category: Peroxiredoxin]]
[[Category: Peroxiredoxin]]
[[Category: Schistosoma mansoni]]
[[Category: Schistosoma mansoni]]