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基本情報
登録情報 | データベース: PDB / ID: 9omf | |||||||||||||||||||||||||||
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タイトル | Cryo-EM structure of neddylated PCMTD1-ELOBC-CUL5-RBX2 (N8-CRL5-PCMTD1) | |||||||||||||||||||||||||||
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![]() | PROTEIN BINDING / CUL5-RING ubiquitin ligase complex | |||||||||||||||||||||||||||
機能・相同性 | ![]() radial glia guided migration of Purkinje cell / cerebral cortex radially oriented cell migration / protein-L-isoaspartate (D-aspartate) O-methyltransferase activity / Inactivation of CSF3 (G-CSF) signaling / ERBB2 signaling pathway / regulation of neuron migration / Neddylation / reelin-mediated signaling pathway / cullin-RING-type E3 NEDD8 transferase / target-directed miRNA degradation ...radial glia guided migration of Purkinje cell / cerebral cortex radially oriented cell migration / protein-L-isoaspartate (D-aspartate) O-methyltransferase activity / Inactivation of CSF3 (G-CSF) signaling / ERBB2 signaling pathway / regulation of neuron migration / Neddylation / reelin-mediated signaling pathway / cullin-RING-type E3 NEDD8 transferase / target-directed miRNA degradation / VCB complex / elongin complex / Antigen processing: Ubiquitination & Proteasome degradation / protein K11-linked ubiquitination / protein neddylation / NEDD8 ligase activity / Cul5-RING ubiquitin ligase complex / SCF ubiquitin ligase complex / intrinsic apoptotic signaling pathway in response to oxidative stress / Cul2-RING ubiquitin ligase complex / SCF-dependent proteasomal ubiquitin-dependent protein catabolic process / apoptotic mitochondrial changes / 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 / RNA Polymerase II Transcription Elongation / Formation of RNA Pol II elongation complex / RNA Polymerase II Pre-transcription Events / intrinsic apoptotic signaling pathway / transcription corepressor binding / TP53 Regulates Transcription of DNA Repair Genes / transcription initiation at RNA polymerase II promoter / transcription elongation by RNA polymerase II / Vif-mediated degradation of APOBEC3G / Inactivation of CSF3 (G-CSF) signaling / RING-type E3 ubiquitin transferase / Evasion by RSV of host interferon responses / Oxygen-dependent proline hydroxylation of Hypoxia-inducible Factor Alpha / 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 / ubiquitin protein ligase binding / regulation of transcription by RNA polymerase II / negative regulation of apoptotic process / 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: 9.72 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. ETOC BLURB: Limiting the accrual of L-isoaspartyl damaged proteins is essential during aging. While this is thought to be mediated solely by the repair activity of the protein, PCMT1, Pang al. now ...ETOC BLURB: Limiting the accrual of L-isoaspartyl damaged proteins is essential during aging. While this is thought to be mediated solely by the repair activity of the protein, PCMT1, Pang al. now demonstrate that a related protein, PCMTD1, functions as a cullin-RING ligase to selectively target L-isoaspartyl-damaged substrates for potential regulation by the ubiquitylation-proteosomal system. HIGHLIGHTS: Atomic cryo-EM structure of CRL5-PCMTD1 determinedArchitecture of PCMTD1 when complexed as a CRL supports ubiquitylation activityPCMTD1 recognizes L-isoaspartyl residues as a recruitment ...HIGHLIGHTS: Atomic cryo-EM structure of CRL5-PCMTD1 determinedArchitecture of PCMTD1 when complexed as a CRL supports ubiquitylation activityPCMTD1 recognizes L-isoaspartyl residues as a recruitment motif for potential CRL activityRecognition of L-isoaspartyl residues is dependent on cofactor engagement. | |||||||||||||||||||||||||||
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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 | ![]() | 239.5 KB | 表示 | ![]() |
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PDB形式 | ![]() | 179.4 KB | 表示 | ![]() |
PDBx/mmJSON形式 | ![]() | ツリー表示 | ![]() | |
その他 | ![]() |
-検証レポート
アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
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-関連構造データ
関連構造データ | ![]() 70612MC ![]() 9omaC C: 同じ文献を引用 ( M: このデータのモデリングに利用したマップデータ |
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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: Q9WTZ1, 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 | 名称: Neddylated complex of PCMTD1, Elongins B and C, Cullin-5, and RING-box protein 2 (N8-CRL5-PCMTD1) タイプ: COMPLEX / Entity ID: all / 由来: RECOMBINANT | ||||||||||||||||
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分子量 | 実験値: NO | ||||||||||||||||
由来(天然) | 生物種: ![]() | ||||||||||||||||
由来(組換発現) | 生物種: ![]() ![]() | ||||||||||||||||
緩衝液 | pH: 7.4 | ||||||||||||||||
緩衝液成分 |
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試料 | 濃度: 2.3 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 neddylated then 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: 2.64 sec. / 電子線照射量: 50 e/Å2 フィルム・検出器のモデル: TFS FALCON 4i (4k x 4k) 実像数: 15192 |
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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: 1731846 | ||||||||||||||||||||||||||||||||
3次元再構成 | 解像度: 9.72 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 7521 / クラス平均像の数: 1 / 対称性のタイプ: POINT | ||||||||||||||||||||||||||||||||
原子モデル構築 | プロトコル: FLEXIBLE FIT / 空間: REAL 詳細: Energy minimized against 3D map of N8-CRL5-PCMTD1 with model of CRL5-PCMTD1 (PDB: 9OMA) then refined in Phenix | ||||||||||||||||||||||||||||||||
原子モデル構築 | PDB-ID: 9OMA Accession code: 9OMA 詳細: Initial model consisted of the complete complex for PDB entry 9OMA Source name: PDB / タイプ: experimental model | ||||||||||||||||||||||||||||||||
精密化 | 最高解像度: 9.72 Å 立体化学のターゲット値: REAL-SPACE (WEIGHTED MAP SUM AT ATOM CENTERS) |