Structural plasticity of D3-D14 ubiquitin ligase in strigolactone signalling.
Structural plasticity of D3-D14 ubiquitin ligase in strigolactone signalling.
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DOI:
10.1038/s41586-018-0743-5
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发表时间:
2018-11
期刊:
影响因子:
64.8
通讯作者:
Zheng N
中科院分区:
文献类型:
--
作者:
Shabek N;Ticchiarelli F;Mao H;Hinds TR;Leyser O;Zheng N
The plant hormone strigolactones (SLs) regulate many aspects of plant physiology. In shoot branching inhibition, the SL-metabolizing α/β hydrolase D14 interacts with the F-box protein D3 to ubiquitinate and degrade the transcription repressor D53. Despite multiple modes of D14-SL interactions determined recently, how the hydrolase functions with D3 to mediate hormone-dependent D53 ubiquitination remains elusive. Here we show that D3 features a C-terminal α-helix (CTH), which can switch between two conformational states. Distinct from its engaged form, which facilitate the binding of D3 and D14 with a hydrolyzed SL intermediate, the dislodged D3 CTH can recognize unmodified D14 in an open conformation and inhibits its enzymatic activity. In an SL-dependent manner, the D3 CTH enables D14 to recruit D53, which in turn activates the hydrolase. By unraveling an unexpected structural plasticity in SCFD3-D14 ubiquitin ligase, our results suggest an intricate mechanism by which the E3 coordinates SL signaling and metabolism.
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影响因子:
9.2
作者:
Hamiaux, Cyril;Drummond, Revel S. M.;Snowden, Kimberley C.
通讯作者:
Snowden, Kimberley C.
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:
13.6
作者:
Ma H;Duan J;Ke J;He Y;Gu X;Xu TH;Yu H;Wang Y;Brunzelle JS;Jiang Y;Rothbart SB;Xu HE;Li J;Melcher K
通讯作者:
Melcher K
影响因子:
44.1
作者:
Song X;Lu Z;Yu H;Shao G;Xiong J;Meng X;Jing Y;Liu G;Xiong G;Duan J;Yao XF;Liu CM;Li H;Wang Y;Li J
通讯作者:
Li J
影响因子:
--
作者:
Lumba S;Bunsick M;McCourt P
通讯作者:
McCourt P