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基本情報
登録情報 | ![]() | |||||||||
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タイトル | Cryo-EM structure of CRL2-FEM1B bound with TOM20(tetramer) | |||||||||
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![]() | ubiquitination E3 ligase / Cryo-EM / PROTEIN BINDING | |||||||||
機能・相同性 | ![]() tRNA import into mitochondrion / TOM complex / regulation of ubiquitin-protein transferase activity / mitochondrion targeting sequence binding / epithelial cell maturation involved in prostate gland development / mitochondrial outer membrane translocase complex / response to 3,3',5-triiodo-L-thyronine / mitochondria-associated endoplasmic reticulum membrane contact site / migrasome / protein import into mitochondrial matrix ...tRNA import into mitochondrion / TOM complex / regulation of ubiquitin-protein transferase activity / mitochondrion targeting sequence binding / epithelial cell maturation involved in prostate gland development / mitochondrial outer membrane translocase complex / response to 3,3',5-triiodo-L-thyronine / mitochondria-associated endoplasmic reticulum membrane contact site / migrasome / protein import into mitochondrial matrix / protein-transporting ATPase activity / branching involved in prostate gland morphogenesis / cullin-RING-type E3 NEDD8 transferase / NEDD8 transferase activity / cullin-RING ubiquitin ligase complex / Mitochondrial protein import / cellular response to chemical stress / regulation of DNA damage checkpoint / Cul7-RING ubiquitin ligase complex / ubiquitin-dependent protein catabolic process via the C-end degron rule pathway / target-directed miRNA degradation / VCB complex / Loss of Function of FBXW7 in Cancer and NOTCH1 Signaling / elongin complex / positive regulation of protein autoubiquitination / death receptor binding / protein neddylation / regulation of extrinsic apoptotic signaling pathway via death domain receptors / NEDD8 ligase activity / negative regulation of response to oxidative stress / Cul5-RING ubiquitin ligase complex / protein targeting to mitochondrion / SCF ubiquitin ligase complex / Cul2-RING ubiquitin ligase complex / ubiquitin-ubiquitin ligase activity / Cul4A-RING E3 ubiquitin ligase complex / negative regulation of type I interferon production / SCF-dependent proteasomal ubiquitin-dependent protein catabolic process / Cul3-RING ubiquitin ligase complex / Cul4B-RING E3 ubiquitin ligase complex / ubiquitin ligase complex scaffold activity / response to muscle activity / negative regulation of mitophagy / Prolactin receptor signaling / protein insertion into mitochondrial outer membrane / cullin family protein binding / Pausing and recovery of Tat-mediated HIV elongation / Tat-mediated HIV elongation arrest and recovery / HIV elongation arrest and recovery / Pausing and recovery of HIV elongation / protein monoubiquitination / ubiquitin ligase complex / Tat-mediated elongation of the HIV-1 transcript / ubiquitin-like ligase-substrate adaptor activity / Formation of HIV-1 elongation complex containing HIV-1 Tat / Formation of HIV elongation complex in the absence of HIV Tat / protein K48-linked ubiquitination / RNA Polymerase II Transcription Elongation / Nuclear events stimulated by ALK signaling in cancer / Formation of RNA Pol II elongation complex / RNA Polymerase II Pre-transcription Events / sperm midpiece / regulation of cellular response to insulin stimulus / positive regulation of TORC1 signaling / negative regulation of insulin receptor signaling pathway / post-translational protein modification / intrinsic apoptotic signaling pathway / T cell activation / Regulation of BACH1 activity / transcription corepressor binding / PINK1-PRKN Mediated Mitophagy / cell periphery / transcription initiation at RNA polymerase II promoter / TP53 Regulates Transcription of DNA Repair Genes / Degradation of DVL / cellular response to amino acid stimulus / transcription elongation by RNA polymerase II / Degradation of GLI1 by the proteasome / Recognition of DNA damage by PCNA-containing replication complex / GSK3B and BTRC:CUL1-mediated-degradation of NFE2L2 / negative regulation of canonical Wnt signaling pathway / Negative regulation of NOTCH4 signaling / Vif-mediated degradation of APOBEC3G / Hedgehog 'on' state / Degradation of GLI2 by the proteasome / GLI3 is processed to GLI3R by the proteasome / FBXL7 down-regulates AURKA during mitotic entry and in early mitosis / Inactivation of CSF3 (G-CSF) signaling / DNA Damage Recognition in GG-NER / RING-type E3 ubiquitin transferase / Degradation of beta-catenin by the destruction complex / Evasion by RSV of host interferon responses / Oxygen-dependent proline hydroxylation of Hypoxia-inducible Factor Alpha / NOTCH1 Intracellular Domain Regulates Transcription / Dual Incision in GG-NER / Transcription-Coupled Nucleotide Excision Repair (TC-NER) / Formation of TC-NER Pre-Incision Complex / G1/S transition of mitotic cell cycle / Constitutive Signaling by NOTCH1 PEST Domain Mutants / Constitutive Signaling by NOTCH1 HD+PEST Domain Mutants 類似検索 - 分子機能 | |||||||||
生物種 | ![]() | |||||||||
手法 | 単粒子再構成法 / クライオ電子顕微鏡法 / 解像度: 4.08 Å | |||||||||
![]() | Zhao S / Xu C | |||||||||
資金援助 | ![]()
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![]() | ![]() タイトル: TOM20-driven E3 ligase recruitment regulates mitochondrial dynamics through PLD6. 著者: Anat Raiff / Shidong Zhao / Aizat Bekturova / Colin Zenge / Shir Mazor / Xinyan Chen / Wenwen Ru / Yaara Makaros / Tslil Ast / Alban Ordureau / Chao Xu / Itay Koren / ![]() ![]() ![]() 要旨: Mitochondrial homeostasis is maintained through complex regulatory mechanisms, including the balance of mitochondrial dynamics involving fusion and fission processes. A central player in this ...Mitochondrial homeostasis is maintained through complex regulatory mechanisms, including the balance of mitochondrial dynamics involving fusion and fission processes. A central player in this regulation is the ubiquitin-proteasome system (UPS), which controls the degradation of pivotal mitochondrial proteins. In this study, we identified cullin-RING E3 ligase 2 (CRL2) and its substrate receptor, FEM1B, as critical regulators of mitochondrial dynamics. Through proteomic analysis, we demonstrate here that FEM1B controls the turnover of PLD6, a key regulator of mitochondrial dynamics. Using structural and biochemical approaches, we show that FEM1B physically interacts with PLD6 and that this interaction is facilitated by the direct association of FEM1B with the mitochondrial import receptor TOM20. Ablation of FEM1B or disruption of the FEM1B-TOM20 interaction impairs PLD6 degradation and induces mitochondrial defects, phenocopying PLD6 overexpression. These findings underscore the importance of FEM1B in maintaining mitochondrial morphology and provide further mechanistic insights into how the UPS regulates mitochondrial homeostasis. | |||||||||
履歴 |
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構造の表示
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マップデータ | ![]() | 945.6 MB | ![]() | |
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ヘッダ (付随情報) | ![]() ![]() | 24.9 KB 24.9 KB | 表示 表示 | ![]() |
画像 | ![]() | 137.1 KB | ||
Filedesc metadata | ![]() | 7.5 KB | ||
その他 | ![]() ![]() | 928.8 MB 928.8 MB | ||
アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
-検証レポート
文書・要旨 | ![]() | 1.1 MB | 表示 | ![]() |
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文書・詳細版 | ![]() | 1.1 MB | 表示 | |
XML形式データ | ![]() | 21.7 KB | 表示 | |
CIF形式データ | ![]() | 26 KB | 表示 | |
アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
-関連構造データ
関連構造データ | ![]() 9j79MC ![]() 9j77C ![]() 9j78C ![]() 9j7aC ![]() 9j7bC ![]() 9jceC ![]() 9lkxC ![]() 9lkyC M: このマップから作成された原子モデル C: 同じ文献を引用 ( |
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類似構造データ | 類似検索 - 機能・相同性 ![]() |
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リンク
EMDBのページ | ![]() ![]() |
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「今月の分子」の関連する項目 |
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マップ
ファイル | ![]() | ||||||||||||||||||||||||||||||||||||
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投影像・断面図 | 画像のコントロール
画像は Spider により作成 | ||||||||||||||||||||||||||||||||||||
ボクセルのサイズ | X=Y=Z: 0.82 Å | ||||||||||||||||||||||||||||||||||||
密度 |
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対称性 | 空間群: 1 | ||||||||||||||||||||||||||||||||||||
詳細 | EMDB XML:
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-添付データ
-ハーフマップ: #2
ファイル | emd_61198_half_map_1.map | ||||||||||||
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投影像・断面図 |
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密度ヒストグラム |
-ハーフマップ: #1
ファイル | emd_61198_half_map_2.map | ||||||||||||
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投影像・断面図 |
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密度ヒストグラム |
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試料の構成要素
+全体 : Cryo-EM structure of CRL2-FEM1B bound with TOM20(tetramer)
+超分子 #1: Cryo-EM structure of CRL2-FEM1B bound with TOM20(tetramer)
+分子 #1: Cullin-2
+分子 #2: Elongin-C
+分子 #3: Elongin-B
+分子 #4: E3 ubiquitin-protein ligase RBX1, N-terminally processed
+分子 #5: Protein fem-1 homolog B
+分子 #6: Mitochondrial import receptor subunit TOM20 homolog
+分子 #7: Poly-UNK
+分子 #8: Poly-UNK
+分子 #9: ZINC ION
-実験情報
-構造解析
手法 | クライオ電子顕微鏡法 |
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![]() | 単粒子再構成法 |
試料の集合状態 | particle |
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試料調製
緩衝液 | pH: 7.5 |
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グリッド | モデル: Quantifoil R2/1 / 材質: COPPER / メッシュ: 200 / 前処理 - タイプ: GLOW DISCHARGE / 前処理 - 時間: 20 sec. |
凍結 | 凍結剤: ETHANE / チャンバー内湿度: 100 % / チャンバー内温度: 277.15 K |
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電子顕微鏡法
顕微鏡 | FEI TITAN KRIOS |
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特殊光学系 | エネルギーフィルター - 名称: GIF Bioquantum / エネルギーフィルター - スリット幅: 20 eV |
撮影 | フィルム・検出器のモデル: GATAN K3 (6k x 4k) / 検出モード: SUPER-RESOLUTION / 平均電子線量: 55.8 e/Å2 |
電子線 | 加速電圧: 300 kV / 電子線源: ![]() |
電子光学系 | 照射モード: FLOOD BEAM / 撮影モード: BRIGHT FIELD / 最大 デフォーカス(公称値): 2.9 µm / 最小 デフォーカス(公称値): 1.8 µm |
試料ステージ | ホルダー冷却材: NITROGEN |
実験機器 | ![]() モデル: Titan Krios / 画像提供: FEI Company |
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画像解析
初期モデル | モデルのタイプ: NONE |
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最終 再構成 | 想定した対称性 - 点群: C1 (非対称) / 解像度のタイプ: BY AUTHOR / 解像度: 4.08 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 使用した粒子像数: 92948 |
初期 角度割当 | タイプ: MAXIMUM LIKELIHOOD |
最終 角度割当 | タイプ: MAXIMUM LIKELIHOOD |