- EMDB-13232: Lon protease from Thermus Thermophilus -
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基本情報
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データベース: EMDB / ID: EMD-13232
タイトル
Lon protease from Thermus Thermophilus
マップデータ
試料
複合体: Lon protease from Thermus thermophilus
タンパク質・ペプチド: Lon protease
タンパク質・ペプチド: (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)
リガンド: PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER
機能・相同性
機能・相同性情報
endopeptidase La / ATP-dependent peptidase activity / protein quality control for misfolded or incompletely synthesized proteins / cellular response to heat / sequence-specific DNA binding / serine-type endopeptidase activity / ATP hydrolysis activity / ATP binding / cytoplasm 類似検索 - 分子機能
Lon protease, bacterial / Lon protease, bacterial/eukaryotic-type / Lon protease AAA+ ATPase lid domain / Peptidase S16, active site / ATP-dependent serine proteases, lon family, serine active site. / Lon proteolytic domain profile. / Peptidase S16, Lon proteolytic domain / Lon protease / Lon protease (S16) C-terminal proteolytic domain / Lon N-terminal domain profile. ...Lon protease, bacterial / Lon protease, bacterial/eukaryotic-type / Lon protease AAA+ ATPase lid domain / Peptidase S16, active site / ATP-dependent serine proteases, lon family, serine active site. / Lon proteolytic domain profile. / Peptidase S16, Lon proteolytic domain / Lon protease / Lon protease (S16) C-terminal proteolytic domain / Lon N-terminal domain profile. / Lon protease, N-terminal domain / Lon protease, N-terminal domain superfamily / ATP-dependent protease La (LON) substrate-binding domain / Found in ATP-dependent protease La (LON) / PUA-like superfamily / ATPase family associated with various cellular activities (AAA) / ATPase, AAA-type, core / Ribosomal protein S5 domain 2-type fold, subgroup / Ribosomal protein S5 domain 2-type fold / 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
ジャーナル: FEBS Lett / 年: 2021 タイトル: Cryo-EM structure of the full-length Lon protease from Thermus thermophilus. 著者: Francesca Coscia / Jan Löwe / 要旨: In bacteria, Lon is a large hexameric ATP-dependent protease that targets misfolded and also folded substrates, some of which are involved in cell division and survival of cellular stress. The N- ...In bacteria, Lon is a large hexameric ATP-dependent protease that targets misfolded and also folded substrates, some of which are involved in cell division and survival of cellular stress. The N-terminal domain of Lon facilitates substrate recognition, but how the domains confer such activity has remained unclear. Here, we report the full-length structure of Lon protease from Thermus thermophilus at 3.9 Å resolution in a substrate-engaged state. The six N-terminal domains are arranged in three pairs, stabilized by coiled-coil segments and forming an additional channel for substrate sensing and entry into the AAA+ ring. Sequence conservation analysis and proteolysis assays confirm that this architecture is required for the degradation of both folded and unfolded substrates in bacteria.
名称: (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) / タイプ: protein_or_peptide / ID: 2 詳細: Substrate trapped in the Lon protease chamber: it was impossible to define the sequence from the side chains density, therefore it was indicated as a poly-UNK chain コピー数: 1 / 光学異性体: LEVO