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基本情報
登録情報 | データベース: PDB / ID: 8wqf | ||||||
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タイトル | cryo-EM structure of CUL2-RBX1-ELOB-ELOC-FEM1B bound with the C-degron of CUX1 (conformation 2) | ||||||
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![]() | LIGASE / E3 ubiquitin ligase / Pro/C-degron | ||||||
機能・相同性 | ![]() regulation of ubiquitin-protein transferase activity / epithelial cell maturation involved in prostate gland development / Intra-Golgi traffic / branching involved in prostate gland morphogenesis / cullin-RING-type E3 NEDD8 transferase / cellular response to chemical stress / NEDD8 transferase activity / intra-Golgi vesicle-mediated transport / cullin-RING ubiquitin ligase complex / regulation of DNA damage checkpoint ...regulation of ubiquitin-protein transferase activity / epithelial cell maturation involved in prostate gland development / Intra-Golgi traffic / branching involved in prostate gland morphogenesis / cullin-RING-type E3 NEDD8 transferase / cellular response to chemical stress / NEDD8 transferase activity / intra-Golgi vesicle-mediated transport / cullin-RING ubiquitin ligase complex / regulation of DNA damage checkpoint / Cul7-RING ubiquitin ligase complex / ubiquitin-dependent protein catabolic process via the C-end degron rule pathway / Loss of Function of FBXW7 in Cancer and NOTCH1 Signaling / target-directed miRNA degradation / elongin complex / VCB complex / positive regulation of protein autoubiquitination / death receptor binding / protein neddylation / regulation of extrinsic apoptotic signaling pathway via death domain receptors / negative regulation of non-canonical NF-kappaB signal transduction / NEDD8 ligase activity / Cul5-RING ubiquitin ligase complex / negative regulation of response to oxidative stress / ubiquitin-ubiquitin ligase activity / Cul4A-RING E3 ubiquitin ligase complex / SCF ubiquitin ligase complex / Cul2-RING ubiquitin ligase complex / negative regulation of type I interferon production / Cul4B-RING E3 ubiquitin ligase complex / ubiquitin ligase complex scaffold activity / SCF-dependent proteasomal ubiquitin-dependent protein catabolic process / Cul3-RING ubiquitin ligase complex / Prolactin receptor signaling / protein monoubiquitination / Pausing and recovery of Tat-mediated HIV elongation / Tat-mediated HIV elongation arrest and recovery / cullin family protein binding / HIV elongation arrest and recovery / Pausing and recovery of HIV elongation / ubiquitin-like ligase-substrate adaptor activity / Tat-mediated elongation of the HIV-1 transcript / Formation of HIV-1 elongation complex containing HIV-1 Tat / protein K48-linked ubiquitination / Formation of HIV elongation complex in the absence of HIV Tat / Nuclear events stimulated by ALK signaling in cancer / RNA Polymerase II Transcription Elongation / Formation of RNA Pol II elongation complex / positive regulation of TORC1 signaling / RNA Polymerase II Pre-transcription Events / T cell activation / Regulation of BACH1 activity / intrinsic apoptotic signaling pathway / post-translational protein modification / transcription corepressor binding / Degradation of DVL / transcription elongation by RNA polymerase II / TP53 Regulates Transcription of DNA Repair Genes / transcription initiation at RNA polymerase II promoter / Recognition of DNA damage by PCNA-containing replication complex / Degradation of GLI1 by the proteasome / Negative regulation of NOTCH4 signaling / RNA polymerase II transcription regulatory region sequence-specific DNA binding / cellular response to amino acid stimulus / GSK3B and BTRC:CUL1-mediated-degradation of NFE2L2 / Vif-mediated degradation of APOBEC3G / Hedgehog 'on' state / DNA Damage Recognition in GG-NER / 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 / RING-type E3 ubiquitin transferase / Degradation of beta-catenin by the destruction complex / negative regulation of canonical Wnt signaling pathway / Oxygen-dependent proline hydroxylation of Hypoxia-inducible Factor Alpha / Inactivation of CSF3 (G-CSF) signaling / Dual Incision in GG-NER / Evasion by RSV of host interferon responses / NOTCH1 Intracellular Domain Regulates Transcription / Transcription-Coupled Nucleotide Excision Repair (TC-NER) / Formation of TC-NER Pre-Incision Complex / Regulation of expression of SLITs and ROBOs / Constitutive Signaling by NOTCH1 PEST Domain Mutants / Constitutive Signaling by NOTCH1 HD+PEST Domain Mutants / Formation of Incision Complex in GG-NER / Interleukin-1 signaling / Orc1 removal from chromatin / Dual incision in TC-NER / G1/S transition of mitotic cell cycle / Gap-filling DNA repair synthesis and ligation in TC-NER / Regulation of RAS by GAPs / protein polyubiquitination / positive regulation of protein catabolic process / ubiquitin-protein transferase activity / Regulation of RUNX2 expression and activity / cellular response to UV / KEAP1-NFE2L2 pathway / MAPK cascade / ubiquitin protein ligase activity / Antigen processing: Ubiquitination & Proteasome degradation 類似検索 - 分子機能 | ||||||
生物種 | ![]() | ||||||
手法 | 電子顕微鏡法 / 単粒子再構成法 / クライオ電子顕微鏡法 / 解像度: 3.27 Å | ||||||
![]() | Chen, X. / Zhang, K. / Xu, C. | ||||||
資金援助 | ![]()
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![]() | ![]() タイトル: Mechanism of Ψ-Pro/C-degron recognition by the CRL2 ubiquitin ligase. 著者: Xinyan Chen / Anat Raiff / Shanshan Li / Qiong Guo / Jiahai Zhang / Hualin Zhou / Richard T Timms / Xuebiao Yao / Stephen J Elledge / Itay Koren / Kaiming Zhang / Chao Xu / ![]() ![]() ![]() ![]() 要旨: The E3 ligase-degron interaction determines the specificity of the ubiquitin‒proteasome system. We recently discovered that FEM1B, a substrate receptor of Cullin 2-RING ligase (CRL2), recognizes C- ...The E3 ligase-degron interaction determines the specificity of the ubiquitin‒proteasome system. We recently discovered that FEM1B, a substrate receptor of Cullin 2-RING ligase (CRL2), recognizes C-degrons containing a C-terminal proline. By solving several cryo-EM structures of CRL2 bound to different C-degrons, we elucidate the dimeric assembly of the complex. Furthermore, we reveal distinct dimerization states of unmodified and neddylated CRL2 to uncover the NEDD8-mediated activation mechanism of CRL2. Our research also indicates that, FEM1B utilizes a bipartite mechanism to recognize both the C-terminal proline and an upstream aromatic residue within the substrate. These structural findings, complemented by in vitro ubiquitination and in vivo cell-based assays, demonstrate that CRL2-mediated polyubiquitination and subsequent protein turnover depend on both FEM1B-degron interactions and the dimerization state of the E3 ligase complex. Overall, this study deepens our molecular understanding of how Cullin-RING E3 ligase substrate selection mediates protein turnover. | ||||||
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構造の表示
構造ビューア | 分子: ![]() ![]() |
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PDBx/mmCIF形式 | ![]() | 671.2 KB | 表示 | ![]() |
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PDBx/mmJSON形式 | ![]() | ツリー表示 | ![]() | |
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-検証レポート
文書・要旨 | ![]() | 1.2 MB | 表示 | ![]() |
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文書・詳細版 | ![]() | 1.3 MB | 表示 | |
XML形式データ | ![]() | 86.4 KB | 表示 | |
CIF形式データ | ![]() | 129.6 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 | ![]() 37743MC ![]() 8wqaC ![]() 8wqbC ![]() 8wqcC ![]() 8wqdC ![]() 8wqeC ![]() 8wqgC ![]() 8wqhC ![]() 8wqiC M: このデータのモデリングに利用したマップデータ 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
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集合体
登録構造単位 | ![]()
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要素
-タンパク質 , 5種, 10分子 ABGCHDIEFJ
#1: タンパク質 | 分子量: 87114.750 Da / 分子数: 2 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() ![]() #2: タンパク質 | 分子量: 10843.420 Da / 分子数: 2 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() ![]() #3: タンパク質 | 分子量: 13147.781 Da / 分子数: 2 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() ![]() #4: タンパク質 | 分子量: 11196.830 Da / 分子数: 2 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() ![]() #5: タンパク質 | 分子量: 70355.062 Da / 分子数: 2 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() ![]() |
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-タンパク質・ペプチド / 非ポリマー , 2種, 7分子 K![](data/chem/img/ZN.gif)
![](data/chem/img/ZN.gif)
#6: タンパク質・ペプチド | 分子量: 3143.281 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() ![]() |
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#7: 化合物 | ChemComp-ZN / |
-詳細
研究の焦点であるリガンドがあるか | N |
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-実験情報
-実験
実験 | 手法: 電子顕微鏡法 |
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EM実験 | 試料の集合状態: PARTICLE / 3次元再構成法: 単粒子再構成法 |
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試料調製
構成要素 | 名称: cryo-EM structure of CUL2-RBX1-ELOB-ELOC-FEM1B bound with the C-degron of CUX1 (conformation 2) タイプ: COMPLEX / Entity ID: #1-#6 / 由来: MULTIPLE SOURCES |
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由来(天然) | 生物種: ![]() |
由来(組換発現) | 生物種: ![]() ![]() |
緩衝液 | pH: 7.5 |
試料 | 濃度: 5 mg/ml / 包埋: NO / シャドウイング: NO / 染色: NO / 凍結: YES |
急速凍結 | 装置: FEI VITROBOT MARK IV / 凍結剤: ETHANE / 湿度: 100 % / 凍結前の試料温度: 277.15 K |
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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 |
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顕微鏡 | モデル: FEI TITAN KRIOS |
電子銃 | 電子線源: ![]() |
電子レンズ | モード: BRIGHT FIELD / 最大 デフォーカス(公称値): 2900 nm / 最小 デフォーカス(公称値): 1500 nm |
試料ホルダ | 凍結剤: NITROGEN |
撮影 | 電子線照射量: 57.6 e/Å2 フィルム・検出器のモデル: GATAN K3 BIOQUANTUM (6k x 4k) 実像数: 8112 |
電子光学装置 | 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 |
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解析
EMソフトウェア |
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CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
3次元再構成 | 解像度: 3.27 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 451332 / 対称性のタイプ: POINT | ||||||||||||||||||||||||
拘束条件 |
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