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基本情報
登録情報 | ![]() | |||||||||
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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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![]() | E3 ubiquitin ligase / Pro/C-degron / LIGASE | |||||||||
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 / 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 / ubiquitin ligase complex scaffold activity / Cul4B-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 / Prolactin receptor signaling / protein monoubiquitination / 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 / 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 / RNA Polymerase II Pre-transcription Events / positive regulation of TORC1 signaling / T cell activation / regulation of cellular response to insulin stimulus / Regulation of BACH1 activity / intrinsic apoptotic signaling pathway / post-translational protein modification / transcription corepressor binding / Degradation of DVL / transcription initiation at RNA polymerase II promoter / TP53 Regulates Transcription of DNA Repair Genes / Recognition of DNA damage by PCNA-containing replication complex / Degradation of GLI1 by the proteasome / transcription elongation by RNA polymerase II / Negative regulation of NOTCH4 signaling / cellular response to amino acid stimulus / GSK3B and BTRC:CUL1-mediated-degradation of NFE2L2 / 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 / DNA Damage Recognition in GG-NER / RING-type E3 ubiquitin transferase / negative regulation of canonical Wnt signaling pathway / Degradation of beta-catenin by the destruction complex / Oxygen-dependent proline hydroxylation of Hypoxia-inducible Factor Alpha / Inactivation of CSF3 (G-CSF) signaling / Transcription-Coupled Nucleotide Excision Repair (TC-NER) / Formation of TC-NER Pre-Incision Complex / Dual Incision in GG-NER / Evasion by RSV of host interferon responses / NOTCH1 Intracellular Domain Regulates Transcription / Constitutive Signaling by NOTCH1 PEST Domain Mutants / Constitutive Signaling by NOTCH1 HD+PEST Domain Mutants / Regulation of expression of SLITs and ROBOs / Formation of Incision Complex in GG-NER / Dual incision in TC-NER / Interleukin-1 signaling / Orc1 removal from chromatin / Gap-filling DNA repair synthesis and ligation in TC-NER / Regulation of RAS by GAPs / protein polyubiquitination / positive regulation of protein catabolic process / G1/S transition of mitotic cell cycle / ubiquitin-protein transferase activity / Regulation of RUNX2 expression and activity / cellular response to UV / MAPK cascade / ubiquitin protein ligase activity / KEAP1-NFE2L2 pathway / positive regulation of proteasomal ubiquitin-dependent protein catabolic process / Antigen processing: Ubiquitination & Proteasome degradation 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: 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. | |||||||||
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 | ![]() | 483.6 MB | ![]() | |
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ヘッダ (付随情報) | ![]() ![]() | 21 KB 21 KB | 表示 表示 | ![]() |
画像 | ![]() | 52.1 KB | ||
Filedesc metadata | ![]() | 6.9 KB | ||
その他 | ![]() ![]() | 475.3 MB 475.3 MB | ||
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 | ![]() 8wqfMC ![]() 8wqaC ![]() 8wqbC ![]() 8wqcC ![]() 8wqdC ![]() 8wqeC ![]() 8wqgC ![]() 8wqhC ![]() 8wqiC 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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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_37743_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_37743_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 CUL2-RBX1-ELOB-ELOC-FEM1B bound with the C-d...
全体 | 名称: cryo-EM structure of CUL2-RBX1-ELOB-ELOC-FEM1B bound with the C-degron of CUX1 (conformation 2) |
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要素 |
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-超分子 #1: cryo-EM structure of CUL2-RBX1-ELOB-ELOC-FEM1B bound with the C-d...
超分子 | 名称: cryo-EM structure of CUL2-RBX1-ELOB-ELOC-FEM1B bound with the C-degron of CUX1 (conformation 2) タイプ: complex / ID: 1 / 親要素: 0 / 含まれる分子: #1-#6 |
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由来(天然) | 生物種: ![]() |
-分子 #1: Cullin-2
分子 | 名称: Cullin-2 / タイプ: protein_or_peptide / ID: 1 / コピー数: 2 / 光学異性体: LEVO |
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由来(天然) | 生物種: ![]() |
分子量 | 理論値: 87.11475 KDa |
組換発現 | 生物種: ![]() ![]() |
配列 | 文字列: SASWSHPQFE KGGGSGGGSG TSLKPRVVDF DETWNKLLTT IKAVVMLEYV ERATWNDRFS DIYALCVAYP EPLGERLYTE TKIFLENHV RHLHKRVLES EEQVLVMYHR YWEEYSKGAD YMDCLYRYLN TQFIKKNGGG PLMEIGELAL DMWRKLMVEP L QAILIRML ...文字列: SASWSHPQFE KGGGSGGGSG TSLKPRVVDF DETWNKLLTT IKAVVMLEYV ERATWNDRFS DIYALCVAYP EPLGERLYTE TKIFLENHV RHLHKRVLES EEQVLVMYHR YWEEYSKGAD YMDCLYRYLN TQFIKKNGGG PLMEIGELAL DMWRKLMVEP L QAILIRML LREIKNDRGG EDPNQKVIHG VINSFVHVEQ YKKKFPLKFY QEIFESPFLT ETGEYYKQEA SNLLQESNCS QY MEKVLGR LKDEEIRCRK YLHPSSYTKV IHECQQRMVA DHLQFLHAEC HNIIRQEKKN DMANMYVLLR AVSTGLPHMI QEL QNHIHD EGLRATSNLT QENMPTLFVE SVLEVHGKFV QLINTVLNGD QHFMSALDKA LTSVVNYREP KSVCKAPELL AKYC DNLLK KSAKGMTENE VEDRLTSFIT VFKYIDDKDV FQKFYARMLA KRLIHGLSMS MDSEEAMINK LKQACGYEFT SKLHR MYTD MSVSADLNNK FNNFIKNQDT VIDLGISFQI YVLQAGAWPL TQAPSSTFAI PQELEKSVQM FELFYSQHFS GRKLTW LHY LCTGEVKMNY LGKPYVAMVT TYQMAVLLAF NNSETVSYKE LQDSTQMNEK ELTKTIKSLL DVKMINHDSE KEDIDAE SS FSLNMNFSSK RTKFKITTSM QKDTPQEMEQ TRSAVDEDRK MYLQAAIVRI MKARKVLRHN ALIQEVISQS RARFNPSI S MIKKCIEVLI DKQYIERSQA SADEYSYVA UniProtKB: Cullin-2 |
-分子 #2: Elongin-C
分子 | 名称: Elongin-C / タイプ: protein_or_peptide / ID: 2 / コピー数: 2 / 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 |
-分子 #3: Elongin-B
分子 | 名称: Elongin-B / タイプ: protein_or_peptide / ID: 3 / コピー数: 2 / 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 #4: E3 ubiquitin-protein ligase RBX1, N-terminally processed
分子 | 名称: E3 ubiquitin-protein ligase RBX1, N-terminally processed タイプ: protein_or_peptide / ID: 4 / コピー数: 2 / 光学異性体: LEVO |
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由来(天然) | 生物種: ![]() |
分子量 | 理論値: 11.19683 KDa |
組換発現 | 生物種: ![]() ![]() |
配列 | 文字列: SHMGAGKKRF EVKKWNAVAL WAWDIVVDNC AICRNHIMDL CIECQANQAS ATSEECTVAW GVCNHAFHFH CISRWLKTRQ VCPLDNREW EFQKYGH UniProtKB: E3 ubiquitin-protein ligase RBX1 |
-分子 #5: Protein fem-1 homolog B
分子 | 名称: Protein fem-1 homolog B / タイプ: protein_or_peptide / ID: 5 / コピー数: 2 / 光学異性体: LEVO |
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由来(天然) | 生物種: ![]() |
分子量 | 理論値: 70.355062 KDa |
組換発現 | 生物種: ![]() ![]() |
配列 | 文字列: MEGLAGYVYK AASEGKVLTL AALLLNRSES DIRYLLGYVS QQGGQRSTPL IIAARNGHAK VVRLLLEHYR VQTQQTGTVR FDGYVIDGA TALWCAAGAG HFEVVKLLVS HGANVNHTTV TNSTPLRAAC FDGRLDIVKY LVENNANISI ANKYDNTCLM I AAYKGHTD ...文字列: MEGLAGYVYK AASEGKVLTL AALLLNRSES DIRYLLGYVS QQGGQRSTPL IIAARNGHAK VVRLLLEHYR VQTQQTGTVR FDGYVIDGA TALWCAAGAG HFEVVKLLVS HGANVNHTTV TNSTPLRAAC FDGRLDIVKY LVENNANISI ANKYDNTCLM I AAYKGHTD VVRYLLEQRA DPNAKAHCGA TALHFAAEAG HIDIVKELIK WRAAIVVNGH GMTPLKVAAE SCKADVVELL LS HADCDRR SRIEALELLG ASFANDRENY DIIKTYHYLY LAMLERFQDG DNILEKEVLP PIHAYGNRTE CRNPQELESI RQD RDALHM EGLIVRERIL GADNIDVSHP IIYRGAVYAD NMEFEQCIKL WLHALHLRQK GNRNTHKDLL RFAQVFSQMI HLNE TVKAP DIECVLRCSV LEIEQSMNRV KNISDADVHN AMDNYECNLY TFLYLVCIST KTQCSEEDQC KINKQIYNLI HLDPR TREG FTLLHLAVNS NTPVDDFHTN DVCSFPNALV TKLLLDCGAE VNAVDNEGNS ALHIIVQYNR PISDFLTLHS IIISLV EAG AHTDMTNKQN KTPLDKSTTG VSEILLKTQM KMSLKCLAAR AVRANDINYQ DQIPRTLEEF VGFH UniProtKB: Protein fem-1 homolog B |
-分子 #6: Protein CASP
分子 | 名称: Protein CASP / タイプ: protein_or_peptide / ID: 6 / 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: 3.143281 KDa |
組換発現 | 生物種: ![]() ![]() |
配列 | 文字列: GGGSGGGSKF ADHLHKFHEN DNGAAAGDLW Q UniProtKB: Protein CASP |
-分子 #7: ZINC ION
分子 | 名称: ZINC ION / タイプ: ligand / ID: 7 / コピー数: 6 / 式: ZN |
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分子量 | 理論値: 65.409 Da |
-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 | 5 mg/mL |
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緩衝液 | pH: 7.5 |
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 / 装置: FEI VITROBOT MARK IV |
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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 BIOQUANTUM (6k x 4k) 実像数: 8112 / 平均電子線量: 57.6 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): 1.5 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 | 解像度のタイプ: BY AUTHOR / 解像度: 3.27 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 使用した粒子像数: 451332 |
初期 角度割当 | タイプ: MAXIMUM LIKELIHOOD |
最終 角度割当 | タイプ: MAXIMUM LIKELIHOOD |