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基本情報
登録情報 | ![]() | |||||||||||||||||||||||||||
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タイトル | Cryo-EM structure of PCMTD1-ELOBC-CUL5-RBX2 (CRL5-PCMTD1) | |||||||||||||||||||||||||||
![]() | Composite map of CRL5-PCMTD1 sharpened via EMReady | |||||||||||||||||||||||||||
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![]() | CUL5-RING ubiquitin ligase complex / PROTEIN BINDING | |||||||||||||||||||||||||||
機能・相同性 | ![]() protein-L-isoaspartate (D-aspartate) O-methyltransferase activity / ERBB2 signaling pathway / regulation of neuron migration / reelin-mediated signaling pathway / cullin-RING-type E3 NEDD8 transferase / NEDD8 transferase activity / target-directed miRNA degradation / VCB complex / elongin complex / protein K11-linked ubiquitination ...protein-L-isoaspartate (D-aspartate) O-methyltransferase activity / ERBB2 signaling pathway / regulation of neuron migration / reelin-mediated signaling pathway / cullin-RING-type E3 NEDD8 transferase / NEDD8 transferase activity / target-directed miRNA degradation / VCB complex / elongin complex / 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 / 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 / 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 | 単粒子再構成法 / クライオ電子顕微鏡法 / 解像度: 4.14 Å | |||||||||||||||||||||||||||
![]() | Pang EZ / Zhao B / Flowers C / Oroudjeva E / Winters JB / Pandey V / Sawaya MR / Wohlschlegel W / Loo JA / Rodriguez JA / Clarke SG | |||||||||||||||||||||||||||
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. | |||||||||||||||||||||||||||
履歴 |
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構造の表示
添付画像 |
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ダウンロードとリンク
-EMDBアーカイブ
マップデータ | ![]() | 265.1 MB | ![]() | |
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ヘッダ (付随情報) | ![]() ![]() | 25.6 KB 25.6 KB | 表示 表示 | ![]() |
画像 | ![]() | 32.9 KB | ||
Filedesc metadata | ![]() | 7.9 KB | ||
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 | ![]() 9omaMC ![]() 9omfC C: 同じ文献を引用 ( M: このマップから作成された原子モデル |
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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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注釈 | Composite map of CRL5-PCMTD1 sharpened via EMReady | ||||||||||||||||||||||||||||||||||||
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: 0.86 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
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試料の構成要素
-全体 : Pentameric complex of PCMTD1, Elongins B and C, Cullin-5, and RIN...
全体 | 名称: Pentameric complex of PCMTD1, Elongins B and C, Cullin-5, and RING-box protein 2 (CRL5-PCMTD1) |
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要素 |
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-超分子 #1: Pentameric complex of PCMTD1, Elongins B and C, Cullin-5, and RIN...
超分子 | 名称: Pentameric complex of PCMTD1, Elongins B and C, Cullin-5, and RING-box protein 2 (CRL5-PCMTD1) タイプ: complex / ID: 1 / 親要素: 0 / 含まれる分子: all |
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由来(天然) | 生物種: ![]() |
-超分子 #2: PCMTD1-ELOBC substrate receptor complex
超分子 | 名称: PCMTD1-ELOBC substrate receptor complex / タイプ: complex / ID: 2 / 親要素: 1 / 含まれる分子: #1, #4-#5 |
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由来(天然) | 生物種: ![]() |
-超分子 #3: PCMTD1
超分子 | 名称: PCMTD1 / タイプ: complex / ID: 3 / 親要素: 2 / 含まれる分子: #1 |
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由来(天然) | 生物種: ![]() |
-超分子 #4: CUL5-RBX2 catalytic core
超分子 | 名称: CUL5-RBX2 catalytic core / タイプ: complex / ID: 4 / 親要素: 1 |
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由来(天然) | 生物種: ![]() |
-分子 #1: Protein-L-isoaspartate O-methyltransferase domain-containing protein 1
分子 | 名称: Protein-L-isoaspartate O-methyltransferase domain-containing protein 1 タイプ: protein_or_peptide / ID: 1 / コピー数: 1 / 光学異性体: LEVO |
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由来(天然) | 生物種: ![]() |
分子量 | 理論値: 40.814348 KDa |
組換発現 | 生物種: ![]() ![]() |
配列 | 文字列: SMGGAVSAGE DNDDLIDNLK EAQYIRTERV EQAFRAIDRG DYYLEGYRDN AYKDLAWKHG NIHLSAPCIY SEVMEALKLQ PGLSFLNLG SGTGYLSTMV GLILGPFGIN HGIELHSDVV EYAKEKLESF IKNSDSFDKF EFCEPAFVVG NCLQIASDSH Q YDRIYCGA ...文字列: SMGGAVSAGE DNDDLIDNLK EAQYIRTERV EQAFRAIDRG DYYLEGYRDN AYKDLAWKHG NIHLSAPCIY SEVMEALKLQ PGLSFLNLG SGTGYLSTMV GLILGPFGIN HGIELHSDVV EYAKEKLESF IKNSDSFDKF EFCEPAFVVG NCLQIASDSH Q YDRIYCGA GVQKDHENYM KILLKVGGIL VMPIEDQLTQ IMRTGQNTWE SKNILAVSFA PLVQPSKNDN GKPDSVGLPP CA VRNLQDL ARIYIRRTLR NFINDEMQAK GIPQRAPPKR KRKRVKQRIN TYVFVGNQLI PQPLDSEEDE KMEEDIKEEE EKD HNEAMK PEEPPQNLLR EKIMKLPLPE SLKAYLTYFR DK UniProtKB: Protein-L-isoaspartate O-methyltransferase domain-containing protein 1 |
-分子 #2: Cullin-5
分子 | 名称: Cullin-5 / タイプ: protein_or_peptide / ID: 2 / コピー数: 1 / 光学異性体: LEVO |
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由来(天然) | 生物種: ![]() |
分子量 | 理論値: 91.43668 KDa |
組換発現 | 生物種: ![]() ![]() |
配列 | 文字列: GEFMATSNLL KNKGSLQFED KWDFMRPIVL KLLRQESVTK QQWFDLFSDV HAVCLWDDKG PAKIHQALKE DILEFIKQAQ ARVLSHQDD TALLKAYIVE WRKFFTQCDI LPKPFCQLEI TLMGKQGSNK KSNVEDSIVR KLMLDTWNES IFSNIKNRLQ D SAMKLVHA ...文字列: GEFMATSNLL KNKGSLQFED KWDFMRPIVL KLLRQESVTK QQWFDLFSDV HAVCLWDDKG PAKIHQALKE DILEFIKQAQ ARVLSHQDD TALLKAYIVE WRKFFTQCDI LPKPFCQLEI TLMGKQGSNK KSNVEDSIVR KLMLDTWNES IFSNIKNRLQ D SAMKLVHA ERLGEAFDSQ LVIGVRESYV NLCSNPEDKL QIYRDNFEKA YLDSTERFYR TQAPSYLQQN GVQNYMKYAD AK LKEEEKR ALRYLETRRE CNSVEALMEC CVNALVTSFK ETILAECQGM IKRNETEKLH LMFSLMDKVP NGIEPMLKDL EEH IISAGL ADMVAAAETI TTDSEKYVEQ LLTLFNRFSK LVKEAFQDDP RFLTARDKAY KAVVNDATIF KLELPLKQKG VGLK TQPES KCPELLANYC DMLLRKTPLS KKLTSEEIEA KLKEVLLVLK YVQNKDVFMR YHKAHLTRRL ILDISADSEI EENMV EWLR EVGMPADYVN KLARMFQDIK VSEDLNQAFK EMHKNNKLAL PADSVNIKIL NAGAWSRSSE KVFVSLPTEL EDLIPE VEE FYKKNHYGRK LHWHHLMSNG IITFKNEVGQ YDLEVTTFQL AVLFAWNQRP REKISFENVK LATELPDAEL RRTLWSL VA FPKLKRQVLL YEPQVNSPKD FTEGTLFSVN QEFSLIKNAK VQKRGKINLI GRLQLTTERM REEENEGIVQ LRILRTQE A IIQIMKMRKK ISNAQLQTEL VEILKNMFLP QKKMIKEQIE WLIEHKYILR DESDINTFIY MA UniProtKB: Cullin-5 |
-分子 #3: RING-box protein 2
分子 | 名称: RING-box protein 2 / タイプ: protein_or_peptide / ID: 3 / コピー数: 1 / 光学異性体: LEVO / EC番号: RING-type E3 ubiquitin transferase |
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由来(天然) | 生物種: ![]() |
分子量 | 理論値: 12.7215 KDa |
組換発現 | 生物種: ![]() ![]() |
配列 | 文字列: MADVEDGEEP CVLSSHSGSA GSKSGGDKMF SLKKWNAVAM WSWDVECDTC AICRVQVMDA CLRCQAENKQ EDCVVVWGEC NHSFHNCCM SLWVKQNNRC PLCQQDWVVQ RIGK UniProtKB: RING-box protein 2 |
-分子 #4: Elongin-B
分子 | 名称: Elongin-B / タイプ: protein_or_peptide / ID: 4 / コピー数: 1 / 光学異性体: LEVO |
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由来(天然) | 生物種: ![]() |
分子量 | 理論値: 13.147781 KDa |
組換発現 | 生物種: ![]() ![]() |
配列 | 文字列: MDVFLMIRRH KTTIFTDAKE SSTVFELKRI VEGILKRPPD EQRLYKDDQL LDDGKTLGEC GFTSQTARPQ APATVGLAFR ADDTFEALC IEPFSSPPEL PDVMKPQDSG SSANEQAVQ UniProtKB: Elongin-B |
-分子 #5: Elongin-C
分子 | 名称: Elongin-C / タイプ: protein_or_peptide / ID: 5 / コピー数: 1 / 光学異性体: LEVO |
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由来(天然) | 生物種: ![]() |
分子量 | 理論値: 10.84342 KDa |
組換発現 | 生物種: ![]() ![]() |
配列 | 文字列: MYVKLISSDG HEFIVKREHA LTSGTIKAML SGPGQFAENE TNEVNFREIP SHVLSKVCMY FTYKVRYTNS STEIPEFPIA PEIALELLM AANFLDC UniProtKB: Elongin-C |
-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
濃度 | 2.8 mg/mL | ||||||||
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緩衝液 | pH: 7.4 構成要素:
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グリッド | モデル: SPT Labtech self-wicking R1.2/0.8 / 材質: COPPER / メッシュ: 300 / 支持フィルム - 材質: CARBON / 支持フィルム - トポロジー: HOLEY / 前処理 - タイプ: GLOW DISCHARGE | ||||||||
凍結 | 凍結剤: ETHANE / 装置: SPT LABTECH CHAMELEON | ||||||||
詳細 | Sample was monodisperse and freshly gel-filtrated prior to sample vitrification |
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電子顕微鏡法
顕微鏡 | TFS KRIOS |
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撮影 | フィルム・検出器のモデル: GATAN K3 BIOQUANTUM (6k x 4k) 実像数: 5447 / 平均露光時間: 2.1 sec. / 平均電子線量: 50.0 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): 2.5 µm / 最小 デフォーカス(公称値): 1.5 µm |
実験機器 | ![]() モデル: Titan Krios / 画像提供: FEI Company |
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画像解析
-原子モデル構築 1
初期モデル |
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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. | ||||||||||||||||||
精密化 | 空間: REAL / プロトコル: OTHER | ||||||||||||||||||
得られたモデル | ![]() PDB-9oma: |