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データを開く
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基本情報
| 登録情報 | ![]() | |||||||||
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| タイトル | Cryo-EM structure of COP9 signalosome precatalytic state with neddylated cullin-2 | |||||||||
マップデータ | ||||||||||
試料 |
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キーワード | COP9 / COP9 signalosome / signalosome / deneddylation / cullin-2 / CSN-N8CUL2 / CUL2 / SIGNALING PROTEIN | |||||||||
| 機能・相同性 | 機能・相同性情報COP9 signalosome assembly / trophectodermal cell proliferation / macrophage migration inhibitory factor binding / regulation of IRE1-mediated unfolded protein response / exosomal secretion / GTPase inhibitor activity / deNEDDylase activity / protein deneddylation / regulation of protein neddylation / activation of NF-kappaB-inducing kinase activity ...COP9 signalosome assembly / trophectodermal cell proliferation / macrophage migration inhibitory factor binding / regulation of IRE1-mediated unfolded protein response / exosomal secretion / GTPase inhibitor activity / deNEDDylase activity / protein deneddylation / regulation of protein neddylation / activation of NF-kappaB-inducing kinase activity / eukaryotic translation initiation factor 3 complex / negative regulation of beige fat cell differentiation / cellular response to camptothecin / cullin-RING-type E3 NEDD8 transferase / NEDD8 transferase activity / COP9 signalosome / cullin-RING ubiquitin ligase complex / Cul7-RING ubiquitin ligase complex / cellular response to chemical stress / Loss of Function of FBXW7 in Cancer and NOTCH1 Signaling / positive regulation of protein autoubiquitination / RNA polymerase II transcription initiation surveillance / protein neddylation / NEDD8 ligase activity / 加水分解酵素; プロテアーゼ; ペプチド結合加水分解酵素 / protein K27-linked ubiquitination / negative regulation of response to oxidative stress / RHOBTB1 GTPase cycle / regulation of JNK cascade / regulation of DNA damage response, signal transduction by p53 class mediator / VCB complex / inner cell mass cell proliferation / Cul5-RING ubiquitin ligase complex / ubiquitin-ubiquitin ligase activity / metal-dependent deubiquitinase activity / ubiquitin-dependent protein catabolic process via the C-end degron rule pathway / SCF ubiquitin ligase complex / Cul2-RING ubiquitin ligase complex / Cul3-RING ubiquitin ligase complex / negative regulation of type I interferon production / SCF-dependent proteasomal ubiquitin-dependent protein catabolic process / Cul4A-RING E3 ubiquitin ligase complex / Cul4-RING E3 ubiquitin ligase complex / Prolactin receptor signaling / negative regulation of mitophagy / Cul4B-RING E3 ubiquitin ligase complex / ubiquitin ligase complex scaffold activity / TGF-beta receptor signaling activates SMADs / regulation of proteolysis / : / skeletal muscle cell differentiation / regulation of postsynapse assembly / response to light stimulus / cullin family protein binding / anatomical structure morphogenesis / protein monoubiquitination / site of DNA damage / JNK cascade / signal transduction in response to DNA damage / Nuclear events stimulated by ALK signaling in cancer / protein K48-linked ubiquitination / transcription-coupled nucleotide-excision repair / translation initiation factor activity / negative regulation of insulin receptor signaling pathway / regulation of cellular response to insulin stimulus / positive regulation of TORC1 signaling / post-translational protein modification / intrinsic apoptotic signaling pathway / T cell activation / protein modification process / Regulation of BACH1 activity / negative regulation of canonical NF-kappaB signal transduction / cellular response to amino acid stimulus / Degradation of DVL / Degradation of CRY and PER proteins / G1/S transition of mitotic cell cycle / negative regulation of canonical Wnt signaling pathway / Iron uptake and transport / Degradation of GLI1 by the proteasome / GSK3B and BTRC:CUL1-mediated-degradation of NFE2L2 / Recognition of DNA damage by PCNA-containing replication complex / Negative regulation of NOTCH4 signaling / RING-type E3 ubiquitin transferase / Hedgehog 'on' state / Vif-mediated degradation of APOBEC3G / FBXL7 down-regulates AURKA during mitotic entry and in early mitosis / Ubiquitin-Mediated Degradation of Phosphorylated Cdc25A / Degradation of GLI2 by the proteasome / GLI3 is processed to GLI3R by the proteasome / NOTCH1 Intracellular Domain Regulates Transcription / Degradation of beta-catenin by the destruction complex / Evasion by RSV of host interferon responses / modification-dependent protein catabolic process / DNA Damage Recognition in GG-NER / Oxygen-dependent proline hydroxylation of Hypoxia-inducible Factor Alpha / Constitutive Signaling by NOTCH1 PEST Domain Mutants / Constitutive Signaling by NOTCH1 HD+PEST Domain Mutants / Dual Incision in GG-NER / Transcription-Coupled Nucleotide Excision Repair (TC-NER) / Formation of TC-NER Pre-Incision Complex 類似検索 - 分子機能 | |||||||||
| 生物種 | Homo sapiens (ヒト) | |||||||||
| 手法 | 単粒子再構成法 / クライオ電子顕微鏡法 / 解像度: 2.96 Å | |||||||||
データ登録者 | Shi H / Zheng N | |||||||||
| 資金援助 | 米国, 1件
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引用 | ジャーナル: Nature / 年: 2026タイトル: CSN5i-3 is an orthosteric molecular glue inhibitor of COP9 signalosome. 著者: Huigang Shi / Xiaorong Wang / Clinton Yu / Haibin Mao / Fenglong Jiao / Merav Braitbard / Ben Shor / Zhongsheng Zhang / Thomas R Hinds / Shiyun Cao / Erkang Fan / Dina Schneidman-Duhovny / ...著者: Huigang Shi / Xiaorong Wang / Clinton Yu / Haibin Mao / Fenglong Jiao / Merav Braitbard / Ben Shor / Zhongsheng Zhang / Thomas R Hinds / Shiyun Cao / Erkang Fan / Dina Schneidman-Duhovny / Lan Huang / Ning Zheng / ![]() 要旨: Orthosteric inhibitors block enzyme active sites and prevent substrates from binding. Enhancing their specificity through substrate dependence seems inherently unlikely, as their mechanism hinges on ...Orthosteric inhibitors block enzyme active sites and prevent substrates from binding. Enhancing their specificity through substrate dependence seems inherently unlikely, as their mechanism hinges on direct competition rather than selective recognition. Here we show that a molecular glue mechanism unexpectedly imparts substrate-dependent potency to CSN5i-3, an orthosteric inhibitor of the COP9 signalosome (CSN). We first confirm that CSN5i-3 inhibits CSN, which catalyses NEDD8 (N8) deconjugation from the cullin-RING ubiquitin ligases, by occupying the active site of its catalytic subunit, CSN5, and directly competing with the iso-peptide bond substrate. Notably, the orthosteric inhibitor binds free CSN with only micromolar affinity, yet achieves nanomolar potency in blocking its deneddylase activity. Cryogenic electron microscopy structures of the enzyme-substrate-inhibitor complex reveal that active site-engaged CSN5i-3 occludes the substrate iso-peptide linkage while simultaneously extending an N8-binding exosite of CSN5, acting as a molecular glue to cement the N8-CSN5 interaction. The cooperativity of this trimolecular CSN5i-3-N8-CSN5 assembly, in turn, sequesters CSN5i-3 at its binding site, conferring high potency to the orthosteric inhibitor despite its low affinity for the free enzyme. Together, our findings highlight the modest affinity requirements of molecule glues for individual target proteins and establish orthosteric molecular glue inhibitors as a new class of substrate-dependent enzyme antagonists. | |||||||||
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構造の表示
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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 | emd_47977.map.gz | 227.8 MB | EMDBマップデータ形式 | |
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| ヘッダ (付随情報) | emd-47977-v30.xml emd-47977.xml | 31.5 KB 31.5 KB | 表示 表示 | EMDBヘッダ |
| 画像 | emd_47977.png | 71.7 KB | ||
| Filedesc metadata | emd-47977.cif.gz | 9.4 KB | ||
| アーカイブディレクトリ | http://ftp.pdbj.org/pub/emdb/structures/EMD-47977 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-47977 | HTTPS FTP |
-関連構造データ
| 関連構造データ | ![]() 9efqMC ![]() 9e5zC ![]() 9e77C ![]() 9e81C ![]() 9efmC ![]() 9efvC ![]() 9eg1C ![]() 9eg8C ![]() 9eglC ![]() 9ph4C 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 F&H 検索 |
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リンク
| EMDBのページ | EMDB (EBI/PDBe) / EMDataResource |
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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 | ダウンロード / ファイル: emd_47977.map.gz / 形式: CCP4 / 大きさ: 244.1 MB / タイプ: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||
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| 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: 0.852 Å | ||||||||||||||||||||||||||||||||||||
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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 : The COP9 signalosome deneddylation complex with neddylated cullin-2
+超分子 #1: The COP9 signalosome deneddylation complex with neddylated cullin-2
+分子 #1: COP9 signalosome complex subunit 1
+分子 #2: COP9 signalosome complex subunit 2
+分子 #3: COP9 signalosome complex subunit 3
+分子 #4: COP9 signalosome complex subunit 4
+分子 #5: COP9 signalosome complex subunit 5
+分子 #6: COP9 signalosome complex subunit 6
+分子 #7: COP9 signalosome complex subunit 7b
+分子 #8: COP9 signalosome complex subunit 8
+分子 #9: NEDD8
+分子 #10: Cullin-2
+分子 #11: E3 ubiquitin-protein ligase RBX1
+分子 #12: ZINC ION
-実験情報
-構造解析
| 手法 | クライオ電子顕微鏡法 |
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解析 | 単粒子再構成法 |
| 試料の集合状態 | particle |
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試料調製
| 緩衝液 | pH: 7.5 |
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| グリッド | モデル: UltrAuFoil R1.2/1.3 / 材質: GOLD / メッシュ: 300 / 前処理 - タイプ: GLOW DISCHARGE |
| 凍結 | 凍結剤: ETHANE / チャンバー内湿度: 100 % / 装置: FEI VITROBOT MARK IV |
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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) 平均電子線量: 60.0 e/Å2 |
| 電子線 | 加速電圧: 300 kV / 電子線源: FIELD EMISSION GUN |
| 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): 3.0 µm / 最小 デフォーカス(公称値): 0.8 µm |
| 試料ステージ | 試料ホルダーモデル: FEI TITAN KRIOS AUTOGRID HOLDER 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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コントローラー
万見について




キーワード
Homo sapiens (ヒト)
データ登録者
米国, 1件
引用




































Z (Sec.)
Y (Row.)
X (Col.)






















解析
FIELD EMISSION GUN

