filament / AAA-ATPase / mitochondria / transmembrane / PROTEIN TRANSPORT
機能・相同性
機能・相同性情報
Class I peroxisomal membrane protein import / extraction of mislocalized protein from mitochondrial outer membrane / membrane protein dislocase activity / Translocases; Catalysing the translocation of amino acids and peptides; Linked to the hydrolysis of a nucleoside triphosphate / negative regulation of synaptic transmission, glutamatergic / peroxisomal membrane / regulation of postsynaptic neurotransmitter receptor internalization / positive regulation of receptor internalization / learning / memory ...Class I peroxisomal membrane protein import / extraction of mislocalized protein from mitochondrial outer membrane / membrane protein dislocase activity / Translocases; Catalysing the translocation of amino acids and peptides; Linked to the hydrolysis of a nucleoside triphosphate / negative regulation of synaptic transmission, glutamatergic / peroxisomal membrane / regulation of postsynaptic neurotransmitter receptor internalization / positive regulation of receptor internalization / learning / memory / mitochondrial outer membrane / postsynaptic membrane / postsynapse / glutamatergic synapse / ATP hydrolysis activity / mitochondrion / ATP binding 類似検索 - 分子機能
: / AAA ATPase, AAA+ lid domain / AAA+ lid domain / ATPase, AAA-type, conserved site / AAA-protein family signature. / ATPase family associated with various cellular activities (AAA) / ATPase, AAA-type, core / ATPases associated with a variety of cellular activities / AAA+ ATPase domain / P-loop containing nucleoside triphosphate hydrolase 類似検索 - ドメイン・相同性
National Institutes of Health/National Institute on Drug Abuse (NIH/NIDA)
DA000266
米国
National Institutes of Health/National Institute on Drug Abuse (NIH/NIDA)
DA044123
米国
National Institutes of Health/National Institute of Neurological Disorders and Stroke (NIH/NINDS)
NS099362
米国
引用
ジャーナル: bioRxiv / 年: 2024 タイトル: Cryo-EM Structure of AAA + ATPase Thorase Reveals Novel Helical Filament Formation. 著者: Mohamad Aasif Dar / Robert Louder / Marisol Cortes / Rong Chen / Qianqian Ma / Mayukh Chakrabarti / George K E Umanah / Ted M Dawson / Valina L Dawson / 要旨: The AAA+ (ATPases associated with a variety of cellular activities) ATPase, Thorase, also known as ATAD1, plays multiple roles in synaptic plasticity, mitochondrial quality control and mTOR signaling ...The AAA+ (ATPases associated with a variety of cellular activities) ATPase, Thorase, also known as ATAD1, plays multiple roles in synaptic plasticity, mitochondrial quality control and mTOR signaling through disassembling protein complexes like AMPAR and mTORC1 in an ATP-dependent manner. The Oligomerization of Thorase is crucial for its disassembly and remodeling functions. We show that wild-type Thorase forms long helical filaments , dependent on ATP binding but not hydrolysis. We report the Cryogenic Electron Microscopy (cryo-EM) structure of the Thorase filament at a resolution of 4 Å, revealing the dimeric arrangement of the basic repeating unit that is formed through a distinct interface compared to the hexameric MSP1/ATAD1E193Q assembly. Structure-guided mutagenesis confirms the role of critical amino acid residues required for filament formation, oligomerization and disassembly of mTORC1 protein complex. Together, our data reveals a novel filament structure of Thorase and provides critical information that elucidates the mechanism underlying Thorase filament formation and Thorase-mediated disassembly of the mTORC1 complex.
名称: Outer mitochondrial transmembrane helix translocase / タイプ: protein_or_peptide / ID: 1 / 光学異性体: LEVO EC番号: Translocases; Catalysing the translocation of amino acids and peptides; Linked to the hydrolysis of a nucleoside triphosphate
フィルム・検出器のモデル: GATAN K3 BIOQUANTUM (6k x 4k) 撮影したグリッド数: 4 / 実像数: 28295 / 平均露光時間: 4.0 sec. / 平均電子線量: 50.0 e/Å2 詳細: Images were collected in counting mode, with 40 frames per 4 second movie.
Chain - Residue range: 66-355 / Chain - Source name: AlphaFold / Chain - Initial model type: in silico model 詳細: Regions with pLDDT below 30 were trimmed from the initial model.