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基本情報
登録情報 | データベース: PDB / ID: 7b5r | |||||||||
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タイトル | Ubiquitin ligation to F-box protein substrates by SCF-RBR E3-E3 super-assembly: CUL1-RBX1-SKP1-SKP2-CKSHS1-Cyclin A-CDK2-p27 | |||||||||
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![]() | LIGASE / ubiquitin / ubiquitin ligase / E3 ligase / F-box protein / RBR ligase / Cullin-RING-Ligase / CRL / SCF / NEDD8 / Post-translational modification / ubiquitylation | |||||||||
機能・相同性 | ![]() cyclin-dependent protein kinase regulator activity / regulation of lens fiber cell differentiation / negative regulation of cyclin-dependent protein kinase activity / negative regulation of cardiac muscle tissue regeneration / mitotic cell cycle phase transition / negative regulation of kinase activity / positive regulation of protein polyubiquitination / autophagic cell death / FOXO-mediated transcription of cell cycle genes / Parkin-FBXW7-Cul1 ubiquitin ligase complex ...cyclin-dependent protein kinase regulator activity / regulation of lens fiber cell differentiation / negative regulation of cyclin-dependent protein kinase activity / negative regulation of cardiac muscle tissue regeneration / mitotic cell cycle phase transition / negative regulation of kinase activity / positive regulation of protein polyubiquitination / autophagic cell death / FOXO-mediated transcription of cell cycle genes / Parkin-FBXW7-Cul1 ubiquitin ligase complex / negative regulation of phosphorylation / negative regulation of epithelial cell proliferation involved in prostate gland development / F-box domain binding / : / cyclin A2-CDK1 complex / negative regulation of cyclin-dependent protein serine/threonine kinase activity / Aberrant regulation of mitotic exit in cancer due to RB1 defects / regulation of cell cycle G1/S phase transition / cellular response to luteinizing hormone stimulus / cell cycle G1/S phase transition / PcG protein complex / regulation of exit from mitosis / negative regulation of epithelial cell apoptotic process / cullin-RING ubiquitin ligase complex / epithelial cell proliferation involved in prostate gland development / ubiquitin ligase activator activity / positive regulation of ubiquitin protein ligase activity / Transcription of E2F targets under negative control by p107 (RBL1) and p130 (RBL2) in complex with HDAC1 / cyclin-dependent protein serine/threonine kinase inhibitor activity / Cul7-RING ubiquitin ligase complex / cellular response to leptin stimulus / maintenance of protein location in nucleus / Loss of Function of FBXW7 in Cancer and NOTCH1 Signaling / RHO GTPases activate CIT / cyclin-dependent protein serine/threonine kinase activator activity / male pronucleus / female pronucleus / nuclear export / response to glucagon / cellular response to cocaine / AKT phosphorylates targets in the cytosol / regulation of cyclin-dependent protein serine/threonine kinase activity / epithelial cell apoptotic process / cellular response to antibiotic / cyclin-dependent protein serine/threonine kinase regulator activity / SCF ubiquitin ligase complex / Cul4A-RING E3 ubiquitin ligase complex / molecular function inhibitor activity / positive regulation of DNA biosynthetic process / SCF-dependent proteasomal ubiquitin-dependent protein catabolic process / cellular response to insulin-like growth factor stimulus / positive regulation of intracellular estrogen receptor signaling pathway / cellular response to lithium ion / ubiquitin ligase complex scaffold activity / cyclin A1-CDK2 complex / cyclin E2-CDK2 complex / cyclin E1-CDK2 complex / cochlea development / cyclin A2-CDK2 complex / positive regulation of DNA-templated DNA replication initiation / cyclin-dependent protein kinase activity / G2 Phase / Y chromosome / Phosphorylation of proteins involved in G1/S transition by active Cyclin E:Cdk2 complexes / positive regulation of heterochromatin formation / p53-Dependent G1 DNA Damage Response / Prolactin receptor signaling / protein kinase inhibitor activity / X chromosome / PTK6 Regulates Cell Cycle / Constitutive Signaling by AKT1 E17K in Cancer / regulation of anaphase-promoting complex-dependent catabolic process / negative regulation of vascular associated smooth muscle cell proliferation / : / Defective binding of RB1 mutants to E2F1,(E2F2, E2F3) / microtubule organizing center / inner ear development / centriole replication / regulation of G1/S transition of mitotic cell cycle / Regulation of APC/C activators between G1/S and early anaphase / telomere maintenance in response to DNA damage / regulation of DNA replication / cullin family protein binding / centrosome duplication / negative regulation of mitotic cell cycle / Telomere Extension By Telomerase / G0 and Early G1 / protein K63-linked ubiquitination / protein monoubiquitination / Estrogen-dependent nuclear events downstream of ESR-membrane signaling / response to amino acid / Activation of the pre-replicative complex / cyclin-dependent kinase / animal organ regeneration / cyclin-dependent protein serine/threonine kinase activity / ubiquitin-like ligase-substrate adaptor activity / TP53 Regulates Transcription of Genes Involved in G1 Cell Cycle Arrest / positive regulation of double-strand break repair via homologous recombination / Regulation of MITF-M-dependent genes involved in cell cycle and proliferation / Cajal body 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: 3.8 Å | |||||||||
![]() | Horn-Ghetko, D. / Prabu, J.R. / Schulman, B.A. | |||||||||
資金援助 | ![]()
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![]() | ![]() タイトル: Ubiquitin ligation to F-box protein targets by SCF-RBR E3-E3 super-assembly. 著者: Daniel Horn-Ghetko / David T Krist / J Rajan Prabu / Kheewoong Baek / Monique P C Mulder / Maren Klügel / Daniel C Scott / Huib Ovaa / Gary Kleiger / Brenda A Schulman / ![]() ![]() ![]() 要旨: E3 ligases are typically classified by hallmark domains such as RING and RBR, which are thought to specify unique catalytic mechanisms of ubiquitin transfer to recruited substrates. However, rather ...E3 ligases are typically classified by hallmark domains such as RING and RBR, which are thought to specify unique catalytic mechanisms of ubiquitin transfer to recruited substrates. However, rather than functioning individually, many neddylated cullin-RING E3 ligases (CRLs) and RBR-type E3 ligases in the ARIH family-which together account for nearly half of all ubiquitin ligases in humans-form E3-E3 super-assemblies. Here, by studying CRLs in the SKP1-CUL1-F-box (SCF) family, we show how neddylated SCF ligases and ARIH1 (an RBR-type E3 ligase) co-evolved to ubiquitylate diverse substrates presented on various F-box proteins. We developed activity-based chemical probes that enabled cryo-electron microscopy visualization of steps in E3-E3 ubiquitylation, initiating with ubiquitin linked to the E2 enzyme UBE2L3, then transferred to the catalytic cysteine of ARIH1, and culminating in ubiquitin linkage to a substrate bound to the SCF E3 ligase. The E3-E3 mechanism places the ubiquitin-linked active site of ARIH1 adjacent to substrates bound to F-box proteins (for example, substrates with folded structures or limited length) that are incompatible with previously described conventional RING E3-only mechanisms. The versatile E3-E3 super-assembly may therefore underlie widespread ubiquitylation. | |||||||||
履歴 |
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構造の表示
ムービー |
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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 | ![]() | 286 KB | 表示 | ![]() |
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PDB形式 | ![]() | 216.8 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
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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 , 3種, 3分子 CKY
#1: タンパク質 | 分子量: 89800.367 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() ![]() |
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#3: タンパク質 | 分子量: 9679.211 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() ![]() |
#6: タンパク質 | 分子量: 48609.574 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() ![]() |
-S-phase kinase-associated protein ... , 2種, 2分子 TS
#2: タンパク質 | 分子量: 47817.785 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() ![]() |
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#4: タンパク質 | 分子量: 18679.965 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() ![]() |
-Cyclin-dependent kinase ... , 2種, 2分子 LP
#5: タンパク質 | 分子量: 34056.469 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: タンパク質 | 分子量: 22188.303 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() ![]() |
-詳細
研究の焦点であるリガンドがあるか | N |
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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: NEDD8-CUL1-RBX1-SKP1-SKP2-CKSHS1-Cyclin A-CDK2-p27-UBE2L3~Ub~ARIH1. Transition State 1 composite map. タイプ: COMPLEX / Entity ID: all / 由来: RECOMBINANT |
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分子量 | 値: 0.30 MDa |
由来(天然) | 生物種: ![]() |
由来(組換発現) | 生物種: ![]() ![]() |
緩衝液 | pH: 7.8 |
試料 | 包埋: NO / シャドウイング: NO / 染色: NO / 凍結: YES |
急速凍結 | 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: FEI TITAN KRIOS |
電子銃 | 電子線源: ![]() |
電子レンズ | モード: BRIGHT FIELD |
撮影 | 電子線照射量: 70 e/Å2 フィルム・検出器のモデル: GATAN K3 BIOQUANTUM (6k x 4k) |
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解析
ソフトウェア | 名称: PHENIX / バージョン: 1.18.2_3874: / 分類: 精密化 | ||||||||||||||||||||||||
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CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
3次元再構成 | 解像度: 3.8 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 213213 / 対称性のタイプ: POINT | ||||||||||||||||||||||||
拘束条件 |
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