ジャーナル: EMBO J / 年: 2006 タイトル: Conformational changes in the AAA ATPase p97-p47 adaptor complex. 著者: Fabienne Beuron / Ingrid Dreveny / Xuemei Yuan / Valerie E Pye / Ciaran McKeown / Louise C Briggs / Matthew J Cliff / Yayoi Kaneko / Russell Wallis / Rivka L Isaacson / John E Ladbury / Steve ...著者: Fabienne Beuron / Ingrid Dreveny / Xuemei Yuan / Valerie E Pye / Ciaran McKeown / Louise C Briggs / Matthew J Cliff / Yayoi Kaneko / Russell Wallis / Rivka L Isaacson / John E Ladbury / Steve J Matthews / Hisao Kondo / Xiaodong Zhang / Paul S Freemont / 要旨: The AAA+ATPase p97/VCP, helped by adaptor proteins, exerts its essential role in cellular events such as endoplasmic reticulum-associated protein degradation or the reassembly of Golgi, ER and the ...The AAA+ATPase p97/VCP, helped by adaptor proteins, exerts its essential role in cellular events such as endoplasmic reticulum-associated protein degradation or the reassembly of Golgi, ER and the nuclear envelope after mitosis. Here, we report the three-dimensional cryo-electron microscopy structures at approximately 20 Angstroms resolution in two nucleotide states of the endogenous hexameric p97 in complex with a recombinant p47 trimer, one of the major p97 adaptor proteins involved in membrane fusion. Depending on the nucleotide state, we observe the p47 trimer to be in two distinct arrangements on top of the p97 hexamer. By combining the EM data with NMR and other biophysical measurements, we propose a model of ATP-dependent p97(N) domain motions that lead to a rearrangement of p47 domains, which could result in the disassembly of target protein complexes.
全体 : Rat endogenous AAA ATPase p97 bound to p47, 'ADP' form
全体
名称: Rat endogenous AAA ATPase p97 bound to p47, 'ADP' form
要素
試料: Rat endogenous AAA ATPase p97 bound to p47, 'ADP' form
タンパク質・ペプチド: p97
タンパク質・ペプチド: p47
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超分子 #1000: Rat endogenous AAA ATPase p97 bound to p47, 'ADP' form
超分子
名称: Rat endogenous AAA ATPase p97 bound to p47, 'ADP' form タイプ: sample / ID: 1000 集合状態: one homohexamer of p97 bound to one trimer of p47 Number unique components: 2