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データを開く
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基本情報
| 登録情報 | データベース: PDB / ID: 9efv | |||||||||||||||
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| タイトル | Cryo-EM structure of CSN-N8CUL1 in complex with CSN5i-3 | |||||||||||||||
要素 |
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キーワード | SIGNALING PROTEIN / COP9 / COP9 signalosome / signalosome / deneddylation / N8CUL1 / CSN5i-3 / othosteric molecular glue | |||||||||||||||
| 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 / Parkin-FBXW7-Cul1 ubiquitin ligase complex / exosomal secretion / GTPase inhibitor activity / deNEDDylase activity / protein deneddylation / regulation of protein neddylation ...COP9 signalosome assembly / trophectodermal cell proliferation / macrophage migration inhibitory factor binding / regulation of IRE1-mediated unfolded protein response / Parkin-FBXW7-Cul1 ubiquitin ligase complex / 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 / 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 / protein K27-linked ubiquitination / 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 / RHOBTB1 GTPase cycle / metal-dependent deubiquitinase activity / VCB complex / negative regulation of response to oxidative stress / regulation of JNK cascade / regulation of DNA damage response, signal transduction by p53 class mediator / Cul5-RING ubiquitin ligase complex / inner cell mass cell proliferation / ubiquitin-ubiquitin ligase activity / ubiquitin-dependent protein catabolic process via the C-end degron rule pathway / SCF ubiquitin ligase complex / Cul2-RING ubiquitin ligase complex / negative regulation of type I interferon production / SCF-dependent proteasomal ubiquitin-dependent protein catabolic process / Cul3-RING ubiquitin ligase complex / negative regulation of mitophagy / Cul4A-RING E3 ubiquitin ligase complex / Cul4-RING E3 ubiquitin ligase complex / Prolactin receptor signaling / Cul4B-RING E3 ubiquitin ligase complex / ubiquitin ligase complex scaffold activity / TGF-beta receptor signaling activates SMADs / regulation of proteolysis / response to light stimulus / skeletal muscle cell differentiation / cullin family protein binding / regulation of postsynapse assembly / protein monoubiquitination / anatomical structure morphogenesis / site of DNA damage / : / protein K48-linked ubiquitination / signal transduction in response to DNA damage / JNK cascade / Nuclear events stimulated by ALK signaling in cancer / transcription-coupled nucleotide-excision repair / translation initiation factor activity / positive regulation of TORC1 signaling / regulation of cellular response to insulin stimulus / negative regulation of insulin receptor signaling pathway / intrinsic apoptotic signaling pathway / post-translational protein modification / T cell activation / negative regulation of canonical NF-kappaB signal transduction / animal organ morphogenesis / Regulation of BACH1 activity / MAP3K8 (TPL2)-dependent MAPK1/3 activation / Degradation of CRY and PER proteins / SCF-beta-TrCP mediated degradation of Emi1 / NIK-->noncanonical NF-kB signaling / cellular response to amino acid stimulus / protein modification process / Degradation of DVL / Dectin-1 mediated noncanonical NF-kB signaling / Activation of NF-kappaB in B cells / G1/S transition of mitotic cell cycle / Degradation of GLI1 by the proteasome / negative regulation of canonical Wnt signaling pathway / Iron uptake and transport / GSK3B and BTRC:CUL1-mediated-degradation of NFE2L2 / Negative regulation of NOTCH4 signaling / Ubiquitin-Mediated Degradation of Phosphorylated Cdc25A / Hedgehog 'on' state / Recognition of DNA damage by PCNA-containing replication complex / Vif-mediated degradation of APOBEC3G / FBXL7 down-regulates AURKA during mitotic entry and in early mitosis / Degradation of GLI2 by the proteasome / GLI3 is processed to GLI3R by the proteasome / RING-type E3 ubiquitin transferase / Degradation of beta-catenin by the destruction complex / Oxygen-dependent proline hydroxylation of Hypoxia-inducible Factor Alpha / modification-dependent protein catabolic process / DNA Damage Recognition in GG-NER / Evasion by RSV of host interferon responses 類似検索 - 分子機能 | |||||||||||||||
| 生物種 | Homo sapiens (ヒト) | |||||||||||||||
| 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: 3.03 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
| 構造ビューア | 分子: Molmil Jmol/JSmol |
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ダウンロードとリンク
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ダウンロード
| PDBx/mmCIF形式 | 9efv.cif.gz | 572.3 KB | 表示 | PDBx/mmCIF形式 |
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| PDB形式 | pdb9efv.ent.gz | 456 KB | 表示 | PDB形式 |
| PDBx/mmJSON形式 | 9efv.json.gz | ツリー表示 | PDBx/mmJSON形式 | |
| その他 | その他のダウンロード |
-検証レポート
| アーカイブディレクトリ | https://data.pdbj.org/pub/pdb/validation_reports/ef/9efv ftp://data.pdbj.org/pub/pdb/validation_reports/ef/9efv | HTTPS FTP |
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-関連構造データ
| 関連構造データ | ![]() 47981MC ![]() 9e5zC ![]() 9e77C ![]() 9e81C ![]() 9efmC ![]() 9efqC ![]() 9eg1C ![]() 9eg8C ![]() 9eglC ![]() 9ph4C M: このデータのモデリングに利用したマップデータ 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 F&H 検索 |
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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
-COP9 signalosome complex subunit ... , 8種, 8分子 ABCDEFGH
| #1: タンパク質 | 分子量: 55606.496 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 遺伝子: GPS1, COPS1, CSN1 / 発現宿主: ![]() |
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| #2: タンパク質 | 分子量: 51664.570 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 遺伝子: COPS2, CSN2, TRIP15 / 発現宿主: ![]() |
| #3: タンパク質 | 分子量: 47924.008 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 遺伝子: COPS3, CSN3 / 発現宿主: ![]() |
| #4: タンパク質 | 分子量: 46322.688 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 遺伝子: COPS4, CSN4 / 発現宿主: ![]() |
| #5: タンパク質 | 分子量: 37621.742 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 遺伝子: COPS5, CSN5, JAB1発現宿主: ![]() 参照: UniProt: Q92905, 加水分解酵素; プロテアーゼ; ペプチド結合加水分解酵素 |
| #6: タンパク質 | 分子量: 36203.398 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 遺伝子: COPS6, CSN6, HVIP / 発現宿主: ![]() |
| #7: タンパク質 | 分子量: 29656.928 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 遺伝子: COPS7B, CSN7B / 発現宿主: ![]() |
| #8: タンパク質 | 分子量: 23245.543 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 遺伝子: COPS8, CSN8 / 発現宿主: ![]() |
-タンパク質 , 3種, 3分子 IJK
| #9: タンパク質 | 分子量: 9086.562 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 遺伝子: NEDD8 / 発現宿主: ![]() |
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| #10: 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) Homo sapiens (ヒト) / 遺伝子: CUL1 / 発現宿主: ![]() |
| #11: タンパク質 | 分子量: 12289.977 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 遺伝子: RBX1, RNF75, ROC1 / 発現宿主: ![]() 参照: UniProt: P62877, RING-type E3 ubiquitin transferase, cullin-RING-type E3 NEDD8 transferase |
-非ポリマー , 2種, 5分子 


| #12: 化合物 | ChemComp-6LT / |
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| #13: 化合物 | ChemComp-ZN / |
-詳細
| 研究の焦点であるリガンドがあるか | Y |
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| Has protein modification | N |
-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: The COP9 signalosome complex neddylated cullin-1 with CSN5i-3 タイプ: COMPLEX / Entity ID: #1-#11 / 由来: MULTIPLE SOURCES |
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| 由来(天然) | 生物種: Homo sapiens (ヒト) |
| 由来(組換発現) | 生物種: ![]() |
| 緩衝液 | pH: 7.5 |
| 試料 | 包埋: NO / シャドウイング: NO / 染色: NO / 凍結: YES |
| 試料支持 | グリッドの材料: GOLD / グリッドのサイズ: 300 divisions/in. / グリッドのタイプ: UltrAuFoil R1.2/1.3 |
| 急速凍結 | 装置: FEI VITROBOT MARK IV / 凍結剤: ETHANE / 湿度: 100 % |
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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: FIELD EMISSION GUN / 加速電圧: 300 kV / 照射モード: FLOOD BEAM |
| 電子レンズ | モード: BRIGHT FIELD / 最大 デフォーカス(公称値): 3000 nm / 最小 デフォーカス(公称値): 800 nm / アライメント法: COMA FREE |
| 試料ホルダ | 凍結剤: NITROGEN 試料ホルダーモデル: FEI TITAN KRIOS AUTOGRID HOLDER |
| 撮影 | 電子線照射量: 60 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
| EMソフトウェア |
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| CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||
| 対称性 | 点対称性: C1 (非対称) | ||||||||||||||||||
| 3次元再構成 | 解像度: 3.03 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 174577 / アルゴリズム: FOURIER SPACE / 対称性のタイプ: POINT |
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万見について




Homo sapiens (ヒト)
米国, 1件
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