Intracellular complexes of the early-onset torsion dystonia-associated AAA+ ATPase TorsinA.
Intracellular complexes of the early-onset torsion dystonia-associated AAA+ ATPase TorsinA.
复制标题
DOI:
10.1186/2193-1801-3-743
复制
发表时间:
2014
期刊:
影响因子:
--
通讯作者:
Zolkiewski M
中科院分区:
文献类型:
--
作者:
Li H;Wu HC;Liu Z;Zacchi LF;Brodsky JL;Zolkiewski M
A single GAG codon deletion in the gene encoding torsinA is linked to most cases of early-onset torsion dystonia. TorsinA is an ER-localized membrane-associated ATPase from the AAA+ superfamily with an unknown biological function. We investigated the formation of oligomeric complexes of torsinA in cultured mammalian cells and found that wild type torsinA associates into a complex with a molecular weight consistent with that of a homohexamer. Interestingly, the dystonia-linked variant torsinAΔE displayed a reduced propensity to form the oligomers compared to the wild type protein. We also discovered that the deletion of the N-terminal membrane-associating region of torsinA abolished oligomer formation. Our results demonstrate that the dystonia-linked mutation in the torsinA gene produces a protein variant that is deficient in maintaining its oligomeric state and suggest that ER membrane association is required to stabilize the torsinA complex. The online version of this article (doi:10.1186/2193-1801-3-743) contains supplementary material, which is available to authorized users.
登录
查看更多内容
DOI:
10.1073/pnas.0304375101
发表时间:
2004-01-20
影响因子:
11.1
作者:
Goodchild, RE;Dauer, WT
通讯作者:
Dauer, WT
影响因子:
2.9
作者:
Kustedjo, K;Deechongkit, S;Cravatt, BF
通讯作者:
Cravatt, BF
影响因子:
3.3
作者:
Gordon, K. L.;Gonzalez-Alegre, P.
通讯作者:
Gonzalez-Alegre, P.
影响因子:
4
作者:
Nery FC;Zeng J;Niland BP;Hewett J;Farley J;Irimia D;Li Y;Wiche G;Sonnenberg A;Breakefield XO
通讯作者:
Breakefield XO
影响因子:
38.1
作者:
Tanabe, Lauren M.;Kim, Connie E.;Alagem, Noga;Dauer, William T.
通讯作者:
Dauer, William T.