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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: 9ggm | |||||||||
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| タイトル | Cryo-EM structure of KBTBD4 P313PRR mutant-HDAC2 2:2 complex | |||||||||
要素 |
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キーワード | LIGASE / E3 ligase / deacetylase / transcription / cancer mutation / protein complex | |||||||||
| 機能・相同性 | 機能・相同性情報positive regulation of male mating behavior / protein de-2-hydroxyisobutyrylase activity / protein lysine delactylase activity / negative regulation of dendritic spine development / p75NTR negatively regulates cell cycle via SC1 / epidermal cell differentiation / histone decrotonylase activity / fungiform papilla formation / NuRD complex / positive regulation of interleukin-1 production ...positive regulation of male mating behavior / protein de-2-hydroxyisobutyrylase activity / protein lysine delactylase activity / negative regulation of dendritic spine development / p75NTR negatively regulates cell cycle via SC1 / epidermal cell differentiation / histone decrotonylase activity / fungiform papilla formation / NuRD complex / positive regulation of interleukin-1 production / regulation of cell fate specification / : / EGR2 and SOX10-mediated initiation of Schwann cell myelination / negative regulation of stem cell population maintenance / histone deacetylase activity, hydrolytic mechanism / ESC/E(Z) complex / histone deacetylase / regulation of stem cell differentiation / behavioral response to ethanol / cellular response to dopamine / cardiac muscle hypertrophy / STAT3 nuclear events downstream of ALK signaling / histone deacetylase activity / protein lysine deacetylase activity / response to caffeine / 加水分解酵素; ペプチド以外のCN結合加水分解酵素; 鎖状アミドに作用 / embryonic digit morphogenesis / positive regulation of intracellular estrogen receptor signaling pathway / Notch-HLH transcription pathway / odontogenesis of dentin-containing tooth / Sin3-type complex / eyelid development in camera-type eye / histone deacetylase complex / positive regulation of stem cell population maintenance / response to amyloid-beta / dendrite development / positive regulation of proteolysis / progesterone receptor signaling pathway / RNA Polymerase I Transcription Initiation / positive regulation of oligodendrocyte differentiation / Regulation of MECP2 expression and activity / hair follicle placode formation / response to hyperoxia / FOXO-mediated transcription of oxidative stress, metabolic and neuronal genes / cellular response to transforming growth factor beta stimulus / positive regulation of epithelial to mesenchymal transition / NF-kappaB binding / Transcriptional regulation of brown and beige adipocyte differentiation by EBF2 / Regulation of TP53 Activity through Acetylation / MECP2 regulates neuronal receptors and channels / cellular response to retinoic acid / heat shock protein binding / negative regulation of cell migration / SUMOylation of chromatin organization proteins / Regulation of PTEN gene transcription / transcription coregulator binding / response to amphetamine / ERCC6 (CSB) and EHMT2 (G9a) positively regulate rRNA expression / response to nicotine / Regulation of endogenous retroelements by KRAB-ZFP proteins / response to cocaine / circadian regulation of gene expression / HDACs deacetylate histones / Regulation of endogenous retroelements by Piwi-interacting RNAs (piRNAs) / promoter-specific chromatin binding / negative regulation of transforming growth factor beta receptor signaling pathway / Negative Regulation of CDH1 Gene Transcription / NoRC negatively regulates rRNA expression / NOTCH1 Intracellular Domain Regulates Transcription / Constitutive Signaling by NOTCH1 PEST Domain Mutants / Constitutive Signaling by NOTCH1 HD+PEST Domain Mutants / histone deacetylase binding / cellular response to hydrogen peroxide / positive regulation of tumor necrosis factor production / heterochromatin formation / negative regulation of neuron projection development / cellular response to heat / Factors involved in megakaryocyte development and platelet production / histone binding / response to lipopolysaccharide / Potential therapeutics for SARS / RNA polymerase II-specific DNA-binding transcription factor binding / chromosome, telomeric region / chromatin remodeling / response to xenobiotic stimulus / negative regulation of DNA-templated transcription / positive regulation of cell population proliferation / chromatin binding / negative regulation of apoptotic process / positive regulation of DNA-templated transcription / chromatin / enzyme binding / negative regulation of transcription by RNA polymerase II / positive regulation of transcription by RNA polymerase II / protein-containing complex / RNA binding / nucleoplasm / nucleus / cytoplasm 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: 2.71 Å | |||||||||
データ登録者 | Chen, Z. / Chi, G. / Pike, A.C.W. / Montes, B. / Bullock, A.N. | |||||||||
| 資金援助 | 英国, スイス, 2件
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引用 | ジャーナル: Nat Commun / 年: 2025タイトル: Structural mimicry of UM171 and neomorphic cancer mutants co-opts E3 ligase KBTBD4 for HDAC1/2 recruitment. 著者: Zhuoyao Chen / Gamma Chi / Timea Balo / Xiangrong Chen / Beatriz Ralsi Montes / Steven C Clifford / Vincenzo D'Angiolella / Timea Szabo / Arpad Kiss / Tibor Novak / András Herner / András ...著者: Zhuoyao Chen / Gamma Chi / Timea Balo / Xiangrong Chen / Beatriz Ralsi Montes / Steven C Clifford / Vincenzo D'Angiolella / Timea Szabo / Arpad Kiss / Tibor Novak / András Herner / András Kotschy / Alex N Bullock / ![]() 要旨: Neomorphic mutations and drugs can elicit unanticipated effects that require mechanistic understanding to inform clinical practice. Recurrent indel mutations in the Kelch domain of the KBTBD4 E3 ...Neomorphic mutations and drugs can elicit unanticipated effects that require mechanistic understanding to inform clinical practice. Recurrent indel mutations in the Kelch domain of the KBTBD4 E3 ligase rewire epigenetic programs for stemness in medulloblastoma by recruiting LSD1-CoREST-HDAC1/2 complexes as neo-substrates for ubiquitination and degradation. UM171, an investigational drug for haematopoietic stem cell transplantation, was found to degrade LSD1-CoREST-HDAC1/2 complexes in a wild-type KBTBD4-dependent manner, suggesting a potential common mode of action. Here, we identify that these neomorphic interactions are mediated by the HDAC deacetylase domain. Cryo-EM studies of both wild-type and mutant KBTBD4 capture 2:1 and 2:2 KBTBD4-HDAC2 complexes, as well as a 2:1:1 KBTBD4-HDAC2-CoREST1 complex, at resolutions spanning 2.7 to 3.3 Å. The mutant and drug-induced complexes adopt similar structural assemblies requiring both Kelch domains in the KBTBD4 dimer for each HDAC2 interaction. UM171 is identified as a bona fide molecular glue binding across the ternary interface. Most strikingly, the indel mutation reshapes the same surface of KBTBD4 providing an example of a natural mimic of a molecular glue. Together, the structures provide mechanistic understanding of neomorphic KBTBD4, while structure-activity relationship (SAR) analysis of UM171 reveals analog S234984 as a more potent molecular glue for future studies. | |||||||||
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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 | 9ggm.cif.gz | 319.3 KB | 表示 | PDBx/mmCIF形式 |
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| PDB形式 | pdb9ggm.ent.gz | 239.2 KB | 表示 | PDB形式 |
| PDBx/mmJSON形式 | 9ggm.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/gg/9ggm ftp://data.pdbj.org/pub/pdb/validation_reports/gg/9ggm | 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
| #1: タンパク質 | 分子量: 58463.059 Da / 分子数: 2 / 変異: Indel mutation R313PRR / 由来タイプ: 組換発現 詳細: Contains medulloblastoma cancer indel mutation R313PRR 由来: (組換発現) Homo sapiens (ヒト) / 遺伝子: KBTBD4, BKLHD4 / 細胞株 (発現宿主): Expi293F / 発現宿主: Homo sapiens (ヒト) / 参照: UniProt: Q9NVX7#2: タンパク質 | 分子量: 55443.156 Da / 分子数: 2 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 遺伝子: HDAC2 / Cell (発現宿主): Expi293F / 発現宿主: Homo sapiens (ヒト)参照: UniProt: Q92769, histone deacetylase, 加水分解酵素; ペプチド以外のCN結合加水分解酵素; 鎖状アミドに作用 #3: 化合物 | 研究の焦点であるリガンドがあるか | N | Has protein modification | N | |
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-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: KBTBD4 R313PRR cancer mutant in complex with HDAC2 at 2:2 stoichiometry タイプ: COMPLEX / Entity ID: #1-#2 / 由来: RECOMBINANT | ||||||||||||||||||||||||||||||
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| 分子量 | 実験値: NO | ||||||||||||||||||||||||||||||
| 由来(天然) | 生物種: Homo sapiens (ヒト) | ||||||||||||||||||||||||||||||
| 由来(組換発現) | 生物種: Homo sapiens (ヒト) | ||||||||||||||||||||||||||||||
| 緩衝液 | pH: 7.5 | ||||||||||||||||||||||||||||||
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| 試料 | 濃度: 0.4 mg/ml / 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 % / 凍結前の試料温度: 277.15 K |
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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: 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 / 倍率(公称値): 105000 X / 最大 デフォーカス(公称値): 2800 nm / 最小 デフォーカス(公称値): 1000 nm |
| 試料ホルダ | 凍結剤: NITROGEN |
| 撮影 | 電子線照射量: 38.6 e/Å2 フィルム・検出器のモデル: GATAN K3 BIOQUANTUM (6k x 4k) 撮影したグリッド数: 1 / 実像数: 13131 |
| 画像スキャン | 横: 5760 / 縦: 4092 |
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解析
| EMソフトウェア | 名称: PHENIX / バージョン: 1.20.1_4487: / カテゴリ: モデル精密化 | ||||||||||||||||||||||||
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| CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
| 対称性 | 点対称性: C2 (2回回転対称) | ||||||||||||||||||||||||
| 3次元再構成 | 解像度: 2.71 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 295217 / 対称性のタイプ: POINT | ||||||||||||||||||||||||
| 原子モデル構築 | B value: 107.7 / プロトコル: FLEXIBLE FIT / 空間: REAL | ||||||||||||||||||||||||
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| 拘束条件 |
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ムービー
コントローラー
万見について




Homo sapiens (ヒト)
英国,
スイス, 2件
引用







PDBj
































FIELD EMISSION GUN
