Crystal structures of human MGST2 reveal synchronized conformational changes regulating catalysis.
Crystal structures of human MGST2 reveal synchronized conformational changes regulating catalysis.
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DOI:
10.1038/s41467-021-21924-8
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发表时间:
2021-03-19
影响因子:
16.6
通讯作者:
Haeggström JZ
中科院分区:
文献类型:
--
作者:
Thulasingam M;Orellana L;Nji E;Ahmad S;Rinaldo-Matthis A;Haeggström JZ
Microsomal glutathione S-transferase 2 (MGST2) produces leukotriene C4, key for intracrine signaling of endoplasmic reticulum (ER) stress, oxidative DNA damage and cell death. MGST2 trimer restricts catalysis to only one out of three active sites at a time, but the molecular basis is unknown. Here, we present crystal structures of human MGST2 combined with biochemical and computational evidence for a concerted mechanism, involving local unfolding coupled to global conformational changes that regulate catalysis. Furthermore, synchronized changes in the biconical central pore modulate the hydrophobicity and control solvent influx to optimize reaction conditions at the active site. These unique mechanistic insights pertain to other, structurally related, drug targets. Microsomal glutathione S-transferase 2 (MGST2) produces leukotriene C4, an intracrine mediator of cell death. Structural, biochemical and computational analyses of human MGST2 suggest a mechanism employed by the enzyme to restrict catalysis to only one active site within the MGST2 trimer.
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影响因子:
16.6
作者:
Dvash E;Har-Tal M;Barak S;Meir O;Rubinstein M
通讯作者:
Rubinstein M
DOI:
10.1107/s0907444904019158
发表时间:
2004-12-01
影响因子:
2.2
作者:
Emsley, P;Cowtan, K
通讯作者:
Cowtan, K
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
DOI:
10.1073/pnas.1522891113
发表时间:
2016-01-26
影响因子:
11.1
作者:
Brock, Joseph S.;Hamberg, Mats;Haeggstrom, Jesper Z.
通讯作者:
Haeggstrom, Jesper Z.
影响因子:
2.9
作者:
Ahmad, Shabbir;Niegowski, Damian;Rinaldo-Matthis, Agnes
通讯作者:
Rinaldo-Matthis, Agnes