Quantitative interaction mapping reveals an extended UBX domain in ASPL that disrupts functional p97 hexamers.
Quantitative interaction mapping reveals an extended UBX domain in ASPL that disrupts functional p97 hexamers.
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定量相互作用映射显示ASPL中的扩展UBX结构域破坏了功能性p97六聚体。
DOI:
10.1038/ncomms13047
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发表时间:
2016-10-20
影响因子:
16.6
通讯作者:
Wanker, Erich E.
中科院分区:
文献类型:
--
作者:
Arumughan, Anup;Roske, Yvette;Barth, Carolin;Forero, Laura Lleras;Bravo-Rodriguez, Kenny;Redel, Alexandra;Kostova, Simona;McShane, Erik;Opitz, Robert;Faelber, Katja;Rau, Kirstin;Mielke, Thorsten;Daumke, Oliver;Selbach, Matthias;Sanchez-Garcia, Elsa;Rocks, Oliver;Panakova, Daniela;Heinemann, Udo;Wanker, Erich E.
Interaction mapping is a powerful strategy to elucidate the biological function of protein assemblies and their regulators. Here, we report the generation of a quantitative interaction network, directly linking 14 human proteins to the AAA+ ATPase p97, an essential hexameric protein with multiple cellular functions. We show that the high-affinity interacting protein ASPL efficiently promotes p97 hexamer disassembly, resulting in the formation of stable p97:ASPL heterotetramers. High-resolution structural and biochemical studies indicate that an extended UBX domain (eUBX) in ASPL is critical for p97 hexamer disassembly and facilitates the assembly of p97:ASPL heterotetramers. This spontaneous process is accompanied by a reorientation of the D2 ATPase domain in p97 and a loss of its activity. Finally, we demonstrate that overproduction of ASPL disrupts p97 hexamer function in ERAD and that engineered eUBX polypeptides can induce cell death, providing a rationale for developing anti-cancer polypeptide inhibitors that may target p97 activity. The AAA+ ATPase p97 is an essential hexameric protein with multiple protein interaction partners and cellular functions. Here, the authors use interaction mapping to examine partner proteins of this large complex, and assess the effects of these proteins on the disassembly of the p97 complex.
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DOI:
10.3390/molecules20023027
发表时间:
2015-02-12
期刊:
Molecules (Basel, Switzerland)
影响因子:
--
作者:
Chapman E;Maksim N;de la Cruz F;La Clair JJ
通讯作者:
La Clair JJ
DOI:
10.1038/nsb972
发表时间:
2003-10-01
期刊:
NATURE STRUCTURAL BIOLOGY
影响因子:
--
作者:
DeLaBarre, B;Brunger, AT
通讯作者:
Brunger, AT
影响因子:
64.8
作者:
Gavin, AC;Bösche, M;Superti-Furga, G
通讯作者:
Superti-Furga, G
DOI:
10.2174/138620709789104915
发表时间:
2009-09-01
影响因子:
1.8
作者:
Concepcion, Joy;Witte, Krista;Tan, Hong
通讯作者:
Tan, Hong
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