Moonlighting by different stressors: crystal structure of the chaperone species of a 2-Cys peroxiredoxin.
Moonlighting by different stressors: crystal structure of the chaperone species of a 2-Cys peroxiredoxin.
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DOI:
10.1016/j.str.2012.01.004
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发表时间:
2012-03-07
期刊:
影响因子:
5.7
通讯作者:
Angelucci, Francesco
中科院分区:
文献类型:
--
作者:
Saccoccia, Fulvio;Di Micco, Patrizio;Boumis, Giovanna;Brunori, Maurizio;Koutris, Ilias;Miele, Adriana E.;Morea, Veronica;Sriratana, Palita;Williams, David L.;Bellelli, Andrea;Angelucci, Francesco
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 peroxides concentrations. These alternative functions have been associated with changes in the oligomerization state from low (LMW) to high (HMW) molecular weight 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 first structure of a 2-Cys Prx chaperonic form. Comparison of the structures sheds light on the mechanism by which chemical stressors, such as high H2O2 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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DOI:
10.1107/s090744491003982x
发表时间:
2011-04
期刊:
Acta crystallographica. Section D, Biological crystallography
影响因子:
--
作者:
Evans PR
通讯作者:
Evans PR
DOI:
10.1111/j.1742-4658.2009.06985.x
发表时间:
2009-05
期刊:
The FEBS journal
影响因子:
--
作者:
Hall A;Karplus PA;Poole LB
通讯作者:
Poole LB
影响因子:
4.8
作者:
Moon, JC;Hah, YS;Lee, SY
通讯作者:
Lee, SY
DOI:
10.1107/s0907444909052925
发表时间:
2010-02
期刊:
Acta crystallographica. Section D, Biological crystallography
影响因子:
--
作者:
Adams PD;Afonine PV;Bunkóczi G;Chen VB;Davis IW;Echols N;Headd JJ;Hung LW;Kapral GJ;Grosse-Kunstleve RW;McCoy AJ;Moriarty NW;Oeffner R;Read RJ;Richardson DC;Richardson JS;Terwilliger TC;Zwart PH
通讯作者:
Zwart PH
影响因子:
2.9
作者:
Kumsta, Caroline;Jakob, Ursula
通讯作者:
Jakob, Ursula