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基本情報
登録情報 | データベース: PDB / ID: 9oma | |||||||||||||||||||||||||||
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タイトル | Cryo-EM structure of PCMTD1-ELOBC-CUL5-RBX2 (CRL5-PCMTD1) | |||||||||||||||||||||||||||
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![]() | PROTEIN BINDING / CUL5-RING ubiquitin ligase complex | |||||||||||||||||||||||||||
機能・相同性 | ![]() protein-L-isoaspartate (D-aspartate) O-methyltransferase activity / ERBB2 signaling pathway / cullin-RING-type E3 NEDD8 transferase / reelin-mediated signaling pathway / NEDD8 transferase activity / target-directed miRNA degradation / VCB complex / elongin complex / regulation of neuron migration / protein K11-linked ubiquitination ...protein-L-isoaspartate (D-aspartate) O-methyltransferase activity / ERBB2 signaling pathway / cullin-RING-type E3 NEDD8 transferase / reelin-mediated signaling pathway / NEDD8 transferase activity / target-directed miRNA degradation / VCB complex / elongin complex / regulation of neuron migration / protein K11-linked ubiquitination / protein neddylation / NEDD8 ligase activity / Cul5-RING ubiquitin ligase complex / response to redox state / SCF ubiquitin ligase complex / Cul2-RING ubiquitin ligase complex / SCF-dependent proteasomal ubiquitin-dependent protein catabolic process / ubiquitin ligase complex scaffold activity / cullin family protein binding / site of DNA damage / 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 / 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 / endoplasmic reticulum unfolded protein response / RNA Polymerase II Transcription Elongation / Formation of RNA Pol II elongation complex / RNA Polymerase II Pre-transcription Events / post-translational protein modification / intrinsic apoptotic signaling pathway / transcription corepressor binding / transcription initiation at RNA polymerase II promoter / TP53 Regulates Transcription of DNA Repair Genes / transcription elongation by RNA polymerase II / Vif-mediated degradation of APOBEC3G / RING-type E3 ubiquitin transferase / Inactivation of CSF3 (G-CSF) signaling / Oxygen-dependent proline hydroxylation of Hypoxia-inducible Factor Alpha / Evasion by RSV of host interferon responses / calcium channel activity / G1/S transition of mitotic cell cycle / Regulation of expression of SLITs and ROBOs / Downregulation of ERBB2 signaling / ubiquitin-protein transferase activity / ubiquitin protein ligase activity / Antigen processing: Ubiquitination & Proteasome degradation / positive regulation of proteasomal ubiquitin-dependent protein catabolic process / signaling receptor activity / Neddylation / protein-containing complex assembly / ubiquitin-dependent protein catabolic process / protein-macromolecule adaptor activity / proteasome-mediated ubiquitin-dependent protein catabolic process / protein ubiquitination / copper ion binding / ubiquitin protein ligase binding / regulation of transcription by RNA polymerase II / zinc ion binding / nucleoplasm / nucleus / membrane / cytosol / cytoplasm 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: 4.14 Å | |||||||||||||||||||||||||||
![]() | Pang, E.Z. / Zhao, B. / Flowers, C. / Oroudjeva, E. / Winters, J.B. / Pandey, V. / Sawaya, M.R. / Wohlschlegel, W. / Loo, J.A. / Rodriguez, J.A. / Clarke, S.G. | |||||||||||||||||||||||||||
資金援助 | ![]()
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![]() | ![]() タイトル: Structural basis for L-isoaspartyl-containing protein recognition by the PCMTD1 cullin-RING E3 ubiquitin ligase. 著者: Eric Z Pang / Boyu Zhao / Cameron Flowers / Elizabeth Oroudjeva / Jasmine B Winter / Vijaya Pandey / Michael R Sawaya / James Wohlschlegel / Joseph A Loo / Jose A Rodriguez / Steven G Clarke / ![]() 要旨: A major type of spontaneous protein damage that accumulates with age is the formation of kinked polypeptide chains with L-isoaspartyl residues. Mitigating this damage is necessary for maintaining ...A major type of spontaneous protein damage that accumulates with age is the formation of kinked polypeptide chains with L-isoaspartyl residues. Mitigating this damage is necessary for maintaining proteome stability and prolonging organismal survival. While repair through methylation by PCMT1 has been previously shown to suppress L-isoaspartyl accumulation, we provide an additional mechanism for L-isoaspartyl maintenance through PCMTD1, a cullin-RING ligase (CRL). We combined cryo-EM, native mass spectrometry, and biochemical assays to provide insight on how the assembly and architecture of PCMTD1 in the context of a CRL complex fulfils this alternative mechanism. We show that the PCMTD1 CRL complex specifically binds L-isoaspartyl residues when bound to AdoMet. This work provides evidence for a growing class of E3 ubiquitin ligases that recognize spontaneous covalent modifications as potential substrates for ubiquitylation and subsequent proteasomal degradation. | |||||||||||||||||||||||||||
履歴 |
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構造の表示
構造ビューア | 分子: ![]() ![]() |
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ダウンロードとリンク
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PDBx/mmCIF形式 | ![]() | 244.1 KB | 表示 | ![]() |
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PDB形式 | ![]() | 189.9 KB | 表示 | ![]() |
PDBx/mmJSON形式 | ![]() | ツリー表示 | ![]() | |
その他 | ![]() |
-検証レポート
文書・要旨 | ![]() | 689.4 KB | 表示 | ![]() |
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文書・詳細版 | ![]() | 704.2 KB | 表示 | |
XML形式データ | ![]() | 39.7 KB | 表示 | |
CIF形式データ | ![]() | 60.4 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 | ![]() 70610MC ![]() 9omfC 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
#1: タンパク質 | 分子量: 40814.348 Da / 分子数: 1 / 変異: N312I / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() ![]() |
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#2: タンパク質 | 分子量: 91436.680 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() ![]() |
#3: タンパク質 | 分子量: 12721.500 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() ![]() 参照: UniProt: Q9UBF6, RING-type E3 ubiquitin transferase, cullin-RING-type E3 NEDD8 transferase |
#4: タンパク質 | 分子量: 13147.781 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() ![]() |
#5: タンパク質 | 分子量: 10843.420 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() ![]() |
Has protein modification | Y |
-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 |
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分子量 |
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由来(天然) |
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由来(組換発現) |
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緩衝液 | pH: 7.4 | ||||||||||||||||||||||||||||||
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試料 | 濃度: 2.8 mg/ml / 包埋: NO / シャドウイング: NO / 染色: NO / 凍結: YES 詳細: Sample was monodisperse and freshly gel-filtrated prior to sample vitrification | ||||||||||||||||||||||||||||||
試料支持 | グリッドの材料: COPPER / グリッドのサイズ: 300 divisions/in. / グリッドのタイプ: SPT Labtech self-wicking R1.2/0.8 | ||||||||||||||||||||||||||||||
急速凍結 | 装置: SPT LABTECH CHAMELEON / 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 |
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顕微鏡 | モデル: TFS 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): 2500 nm / 最小 デフォーカス(公称値): 1500 nm |
撮影 | 平均露光時間: 2.1 sec. / 電子線照射量: 50 e/Å2 フィルム・検出器のモデル: GATAN K3 BIOQUANTUM (6k x 4k) 実像数: 5447 |
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解析
EMソフトウェア |
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CTF補正 | タイプ: NONE | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
粒子像の選択 | 選択した粒子像数: 1302046 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
3次元再構成 | 解像度: 4.14 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 352937 / 対称性のタイプ: POINT | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
原子モデル構築 | プロトコル: OTHER / 空間: REAL 詳細: After initial fitting in ChimeraX, model was energy minimized against the 3D map with Rosetta FastRelax, adjusted in Coot, and refined in Phenix. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
原子モデル構築 | 3D fitting-ID: 1
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精密化 | 最高解像度: 4.14 Å 立体化学のターゲット値: REAL-SPACE (WEIGHTED MAP SUM AT ATOM CENTERS) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
拘束条件 |
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