Structure of the HECT:ubiquitin complex and its role in ubiquitin chain elongation.
Structure of the HECT:ubiquitin complex and its role in ubiquitin chain elongation.
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DOI:
10.1038/embor.2011.21
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发表时间:
2011-04
期刊:
影响因子:
7.7
通讯作者:
Polo, Simona
中科院分区:
文献类型:
--
作者:
Maspero, Elena;Mari, Sara;Valentini, Eleonora;Musacchio, Andrea;Fish, Alexander;Pasqualato, Sebastiano;Polo, Simona
Several mechanisms have been proposed for the synthesis of substrate-linked ubiquitin chains. HECT ligases directly catalyse protein ubiquitination and have been found to non-covalently interact with ubiquitin. We report crystal structures of the Nedd4 HECT domain, alone and in complex with ubiquitin, which show a new binding mode involving two surfaces on ubiquitin and both subdomains of the HECT N-lobe. The structures suggest a model for HECT-to-substrate ubiquitin transfer, in which the growing chain on the substrate is kept close to the catalytic cysteine to promote processivity. Mutational analysis highlights differences between the processes of substrate polyubiquitination and self-ubiquitination.
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影响因子:
4.8
作者:
Ogunjimi, Abiodun A.;Wiesner, Silke;Wrana, Jeffrey L.
通讯作者:
Wrana, Jeffrey L.
影响因子:
11.4
作者:
Wang, Min;Cheng, Dongmei;Pickart, Cecile M.
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Pickart, Cecile M.
DOI:
10.1107/s0907444909052925
发表时间:
2010-02
期刊:
Acta crystallographica. Section D, Biological crystallography
影响因子:
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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:
16
作者:
Kamadurai, Hari B.;Souphron, Judith;Scott, Daniel C.;Duda, David M.;Miller, Darcie J.;Stringer, Daniel;Piper, Robert C.;Schulman, Brenda A.
通讯作者:
Schulman, Brenda A.
影响因子:
4.8
作者:
Kim, Hyoung Tae;Kim, Kwang Pyo;Goldberg, Alfred L.
通讯作者:
Goldberg, Alfred L.