- PDB-7ngf: P2c-state of wild type human mitochondrial LONP1 protease with bo... -
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基本情報
登録情報
データベース: PDB / ID: 7ngf
タイトル
P2c-state of wild type human mitochondrial LONP1 protease with bound endogenous substrate protein and in presence of ATP/ADP mix
要素
Lon protease homolog, mitochondrial
substrate protein chain:G
キーワード
MOTOR PROTEIN / human mitochondrial AAA+ protease
機能・相同性
機能・相同性情報
oxidation-dependent protein catabolic process / response to aluminum ion / PH domain binding / mitochondrial protein catabolic process / endopeptidase La / G-quadruplex DNA binding / mitochondrial DNA metabolic process / : / ATP-dependent peptidase activity / protein quality control for misfolded or incompletely synthesized proteins ...oxidation-dependent protein catabolic process / response to aluminum ion / PH domain binding / mitochondrial protein catabolic process / endopeptidase La / G-quadruplex DNA binding / mitochondrial DNA metabolic process / : / ATP-dependent peptidase activity / protein quality control for misfolded or incompletely synthesized proteins / mitochondrial nucleoid / insulin receptor substrate binding / Mitochondrial unfolded protein response (UPRmt) / chaperone-mediated protein complex assembly / response to hormone / DNA polymerase binding / Mitochondrial protein degradation / negative regulation of insulin receptor signaling pathway / proteolysis involved in protein catabolic process / mitochondrion organization / protein catabolic process / ADP binding / single-stranded DNA binding / cellular response to oxidative stress / sequence-specific DNA binding / response to hypoxia / single-stranded RNA binding / mitochondrial matrix / serine-type endopeptidase activity / ATP hydrolysis activity / mitochondrion / nucleoplasm / ATP binding / identical protein binding / membrane / cytosol 類似検索 - 分子機能
Lon protease homologue, chloroplastic/mitochondrial / : / 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 protease homologue, chloroplastic/mitochondrial / : / 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: Structure / 年: 2022 タイトル: Catalytic cycling of human mitochondrial Lon protease. 著者: Inayathulla Mohammed / Kai A Schmitz / Niko Schenck / Dimitrios Balasopoulos / Annika Topitsch / Timm Maier / Jan Pieter Abrahams / 要旨: The mitochondrial Lon protease (LonP1) regulates mitochondrial health by removing redundant proteins from the mitochondrial matrix. We determined LonP1 in eight nucleotide-dependent conformational ...The mitochondrial Lon protease (LonP1) regulates mitochondrial health by removing redundant proteins from the mitochondrial matrix. We determined LonP1 in eight nucleotide-dependent conformational states by cryoelectron microscopy (cryo-EM). The flexible assembly of N-terminal domains had 3-fold symmetry, and its orientation depended on the conformational state. We show that a conserved structural motif around T803 with a high similarity to the trypsin catalytic triad is essential for proteolysis. We show that LonP1 is not regulated by redox potential, despite the presence of two conserved cysteines at disulfide-bonding distance in its unfoldase core. Our data indicate how sequential ATP hydrolysis controls substrate protein translocation in a 6-fold binding change mechanism. Substrate protein translocation, rather than ATP hydrolysis, is a rate-limiting step, suggesting that LonP1 is a Brownian ratchet with ATP hydrolysis preventing translocation reversal. 3-fold rocking motions of the flexible N-domain assembly may assist thermal unfolding of the substrate protein.
履歴
登録
2021年2月9日
登録サイト: PDBE / 処理サイト: PDBE
改定 1.0
2021年4月28日
Provider: repository / タイプ: Initial release
改定 1.0
2021年4月28日
Data content type: EM metadata / Data content type: EM metadata / Provider: repository / タイプ: Initial release
改定 1.0
2021年4月28日
Data content type: FSC / Data content type: FSC / Provider: repository / タイプ: Initial release
改定 1.0
2021年4月28日
Data content type: Image / Data content type: Image / Provider: repository / タイプ: Initial release
改定 1.0
2021年4月28日
Data content type: Primary map / Data content type: Primary map / Provider: repository / タイプ: Initial release
改定 1.0
2021年4月28日
Data content type: FSC / Data content type: FSC / Provider: repository / タイプ: Initial release
改定 1.0
2021年4月28日
Data content type: Image / Data content type: Image / Provider: repository / タイプ: Initial release
改定 1.0
2021年4月28日
Data content type: Primary map / Data content type: Primary map / Provider: repository / タイプ: Initial release
改定 1.0
2021年4月28日
Data content type: FSC / Data content type: FSC / Provider: repository / タイプ: Initial release
改定 1.0
2021年4月28日
Data content type: Image / Data content type: Image / Provider: repository / タイプ: Initial release
改定 1.0
2021年4月28日
Data content type: Primary map / Data content type: Primary map / Provider: repository / タイプ: Initial release
改定 1.0
2021年4月28日
Data content type: FSC / Data content type: FSC / Provider: repository / タイプ: Initial release
改定 1.0
2021年4月28日
Data content type: Image / Data content type: Image / Provider: repository / タイプ: Initial release
改定 1.0
2021年4月28日
Data content type: Primary map / Data content type: Primary map / Provider: repository / タイプ: Initial release
改定 2.0
2021年7月7日
Group: Advisory / Atomic model ...Advisory / Atomic model / Data collection / Database references / Derived calculations / Structure summary カテゴリ: atom_site / em_entity_assembly ...atom_site / em_entity_assembly / pdbx_database_related / pdbx_poly_seq_scheme / pdbx_struct_assembly_prop / pdbx_struct_conn_angle / pdbx_struct_sheet_hbond / pdbx_unobs_or_zero_occ_residues / pdbx_validate_close_contact / pdbx_validate_main_chain_plane / pdbx_validate_rmsd_angle / pdbx_validate_torsion / struct_conf / struct_conn / struct_ref_seq / struct_sheet / struct_sheet_order / struct_sheet_range Item: _em_entity_assembly.entity_id_list / _pdbx_poly_seq_scheme.auth_mon_id ..._em_entity_assembly.entity_id_list / _pdbx_poly_seq_scheme.auth_mon_id / _pdbx_poly_seq_scheme.auth_seq_num / _pdbx_poly_seq_scheme.pdb_mon_id / _pdbx_poly_seq_scheme.pdb_seq_num / _pdbx_struct_assembly_prop.value / _struct_conf.beg_auth_asym_id / _struct_conf.beg_auth_comp_id / _struct_conf.beg_auth_seq_id / _struct_conf.beg_label_asym_id / _struct_conf.beg_label_comp_id / _struct_conf.beg_label_seq_id / _struct_conf.end_auth_asym_id / _struct_conf.end_auth_comp_id / _struct_conf.end_auth_seq_id / _struct_conf.end_label_asym_id / _struct_conf.end_label_comp_id / _struct_conf.end_label_seq_id / _struct_conf.pdbx_PDB_helix_class / _struct_conf.pdbx_PDB_helix_length / _struct_ref_seq.db_align_beg / _struct_ref_seq.db_align_end / _struct_ref_seq.pdbx_auth_seq_align_beg / _struct_ref_seq.pdbx_auth_seq_align_end / _struct_sheet.number_strands 解説: Atomic clashes 詳細: We now only included segments of the substrate protein in the deposited models where the N-and C-terminal ends had a density above 4.5 RMSD in the final maps and the density between these ...詳細: We now only included segments of the substrate protein in the deposited models where the N-and C-terminal ends had a density above 4.5 RMSD in the final maps and the density between these termini did not drop below 3.5 RMSD. A final round of refinement improved the clash score. Provider: author / タイプ: Coordinate replacement
Data content type: EM metadata / Data content type: EM metadata / EM metadata / Group: Data processing / Experimental summary / Data content type: EM metadata / EM metadata / カテゴリ: em_admin / em_software / Data content type: EM metadata / EM metadata / Item: _em_admin.last_update / _em_software.name
名称: P2c-state of LonP1 hexameric complex in presence of ATP/ADP and bound endogenous substrate protein タイプ: COMPLEX / Entity ID: #1-#2 / 由来: RECOMBINANT
分子量
値: 0.6 MDa / 実験値: YES
由来(天然)
生物種: Homo sapiens (ヒト)
由来(組換発現)
生物種: Escherichia coli BL21(DE3) (大腸菌)
緩衝液
pH: 7.4
試料
濃度: 0.45 mg/ml / 包埋: NO / シャドウイング: NO / 染色: NO / 凍結: YES
急速凍結
凍結剤: ETHANE
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電子顕微鏡撮影
実験機器
モデル: Titan Krios / 画像提供: FEI Company
顕微鏡
モデル: FEI TITAN KRIOS
電子銃
電子線源: FIELD EMISSION GUN / 加速電圧: 300 kV / 照射モード: OTHER
電子レンズ
モード: BRIGHT FIELD
撮影
電子線照射量: 64 e/Å2 フィルム・検出器のモデル: GATAN K2 SUMMIT (4k x 4k)
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解析
ソフトウェア
名称: PHENIX / バージョン: 1.18.2_3874: / 分類: 精密化
EMソフトウェア
ID
名称
カテゴリ
12
RELION
3次元再構成
13
cryoSPARC
3次元再構成
14
PHENIX
モデル精密化
CTF補正
タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION
3次元再構成
解像度: 5.6 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 30708 / 対称性のタイプ: POINT