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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: 6xbz | |||||||||||||||
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| タイトル | Structure of the human CDK-activating kinase | |||||||||||||||
要素 |
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キーワード | TRANSFERASE / Kinase / transcription / cell cycle / complex | |||||||||||||||
| 機能・相同性 | 機能・相同性情報RNA polymerase II CTD heptapeptide repeat S5 kinase activity / ventricular system development / snRNA transcription by RNA polymerase II / transcription factor TFIIK complex / CAK-ERCC2 complex / transcription factor TFIIH core complex / transcription factor TFIIH holo complex / cyclin-dependent protein serine/threonine kinase activator activity / adult heart development / [RNA-polymerase]-subunit kinase ...RNA polymerase II CTD heptapeptide repeat S5 kinase activity / ventricular system development / snRNA transcription by RNA polymerase II / transcription factor TFIIK complex / CAK-ERCC2 complex / transcription factor TFIIH core complex / transcription factor TFIIH holo complex / cyclin-dependent protein serine/threonine kinase activator activity / adult heart development / [RNA-polymerase]-subunit kinase / RNA Polymerase I Transcription Termination / cyclin-dependent protein serine/threonine kinase regulator activity / RNA Pol II CTD phosphorylation and interaction with CE during HIV infection / RNA Pol II CTD phosphorylation and interaction with CE / Formation of the Early Elongation Complex / Formation of the HIV-1 Early Elongation Complex / mRNA Capping / HIV Transcription Initiation / RNA Polymerase II HIV Promoter Escape / Transcription of the HIV genome / RNA Polymerase II Promoter Escape / RNA Polymerase II Transcription Pre-Initiation And Promoter Opening / RNA Polymerase II Transcription Initiation / RNA Polymerase II Transcription Initiation And Promoter Clearance / RNA Polymerase I Transcription Initiation / regulation of G1/S transition of mitotic cell cycle / RNA polymerase II transcribes snRNA genes / cyclin-dependent kinase / cyclin-dependent protein serine/threonine kinase activity / ATP-dependent activity, acting on DNA / Tat-mediated elongation of the HIV-1 transcript / Cyclin E associated events during G1/S transition / Formation of HIV-1 elongation complex containing HIV-1 Tat / Cyclin A:Cdk2-associated events at S phase entry / Formation of HIV elongation complex in the absence of HIV Tat / cyclin-dependent protein kinase holoenzyme complex / Cyclin A/B1/B2 associated events during G2/M transition / RNA Polymerase II Transcription Elongation / Formation of RNA Pol II elongation complex / RNA polymerase II CTD heptapeptide repeat kinase activity / RNA Polymerase II Pre-transcription Events / positive regulation of smooth muscle cell proliferation / male germ cell nucleus / nucleotide-excision repair / TP53 Regulates Transcription of DNA Repair Genes / transcription initiation at RNA polymerase II promoter / RNA Polymerase I Promoter Escape / G1/S transition of mitotic cell cycle / NoRC negatively regulates rRNA expression / response to calcium ion / Transcription-Coupled Nucleotide Excision Repair (TC-NER) / Formation of TC-NER Pre-Incision Complex / fibrillar center / Formation of Incision Complex in GG-NER / Dual incision in TC-NER / Cyclin D associated events in G1 / Gap-filling DNA repair synthesis and ligation in TC-NER / kinase activity / RUNX1 regulates transcription of genes involved in differentiation of HSCs / transcription by RNA polymerase II / protein kinase activity / regulation of cell cycle / protein stabilization / cell division / protein serine kinase activity / DNA repair / protein serine/threonine kinase activity / regulation of transcription by RNA polymerase II / negative regulation of apoptotic process / perinuclear region of cytoplasm / positive regulation of transcription by RNA polymerase II / zinc ion binding / nucleoplasm / ATP binding / nucleus / plasma membrane / cytoplasm / cytosol 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: 2.8 Å | |||||||||||||||
データ登録者 | Greber, B.J. / Perez-Bertoldi, J.M. / Lim, K. / Iavarone, A.T. / Toso, D.B. / Nogales, E. | |||||||||||||||
| 資金援助 | 米国, 4件
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引用 | ジャーナル: Proc Natl Acad Sci U S A / 年: 2020タイトル: The cryoelectron microscopy structure of the human CDK-activating kinase. 著者: Basil J Greber / Juan M Perez-Bertoldi / Kif Lim / Anthony T Iavarone / Daniel B Toso / Eva Nogales / ![]() 要旨: The human CDK-activating kinase (CAK), a complex composed of cyclin-dependent kinase (CDK) 7, cyclin H, and MAT1, is a critical regulator of transcription initiation and the cell cycle. It acts by ...The human CDK-activating kinase (CAK), a complex composed of cyclin-dependent kinase (CDK) 7, cyclin H, and MAT1, is a critical regulator of transcription initiation and the cell cycle. It acts by phosphorylating the C-terminal heptapeptide repeat domain of the RNA polymerase II (Pol II) subunit RPB1, which is an important regulatory event in transcription initiation by Pol II, and it phosphorylates the regulatory T-loop of CDKs that control cell cycle progression. Here, we have determined the three-dimensional (3D) structure of the catalytic module of human CAK, revealing the structural basis of its assembly and providing insight into CDK7 activation in this context. The unique third component of the complex, MAT1, substantially extends the interaction interface between CDK7 and cyclin H, explaining its role as a CAK assembly factor, and it forms interactions with the CDK7 T-loop, which may contribute to enhancing CAK activity. We have also determined the structure of the CAK in complex with the covalently bound inhibitor THZ1 in order to provide insight into the binding of inhibitors at the CDK7 active site and to aid in the rational design of therapeutic compounds. | |||||||||||||||
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構造の表示
| ムービー |
ムービービューア |
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| 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 | 6xbz.cif.gz | 138.9 KB | 表示 | PDBx/mmCIF形式 |
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| PDB形式 | pdb6xbz.ent.gz | 99.2 KB | 表示 | PDB形式 |
| PDBx/mmJSON形式 | 6xbz.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/xb/6xbz ftp://data.pdbj.org/pub/pdb/validation_reports/xb/6xbz | HTTPS FTP |
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-関連構造データ
| 関連構造データ | ![]() 22123MC ![]() 6xd3C 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 | |
| 電子顕微鏡画像生データ | EMPIAR-10431 (タイトル: Single-particle cryo-EM of the human CDK-activating kinase in complex with ATP-gamma-SData size: 3.5 TB Data #1: Unaligned movies of human CAK, dataset 1 [micrographs - multiframe] Data #2: Unaligned movies of human CAK, dataset 2 [micrographs - multiframe]) |
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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: 38132.340 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: MNAT1, CAP35, MAT1, RNF66 / 細胞株 (発現宿主): High5 / 発現宿主: Trichoplusia ni (イラクサキンウワバ) / 参照: UniProt: P51948 |
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| #2: タンパク質 | 分子量: 37695.473 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: CCNH / 細胞株 (発現宿主): High5 / 発現宿主: Trichoplusia ni (イラクサキンウワバ) / 参照: UniProt: P51946 |
| #3: タンパク質 | 分子量: 43731.051 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: CDK7, CAK, CAK1, CDKN7, MO15, STK1 / 細胞株 (発現宿主): High5 / 発現宿主: Trichoplusia ni (イラクサキンウワバ)参照: UniProt: P50613, cyclin-dependent kinase, [RNA-polymerase]-subunit kinase |
| #4: 化合物 | ChemComp-MG / |
| #5: 化合物 | ChemComp-AGS / |
| 研究の焦点であるリガンドがあるか | N |
| 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: Human CDK-activating kinase / タイプ: COMPLEX 詳細: Recombinantly expressed as a trimeric complex in insect cells Entity ID: #1-#3 / 由来: RECOMBINANT | ||||||||||||||||||||||||||||||
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| 分子量 | 値: 0.1 MDa / 実験値: NO | ||||||||||||||||||||||||||||||
| 由来(天然) | 生物種: Homo sapiens (ヒト) | ||||||||||||||||||||||||||||||
| 由来(組換発現) | 生物種: Trichoplusia ni (イラクサキンウワバ) | ||||||||||||||||||||||||||||||
| 緩衝液 | pH: 7.9 | ||||||||||||||||||||||||||||||
| 緩衝液成分 |
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| 試料 | 濃度: 0.2 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: 278 K |
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電子顕微鏡撮影
| 実験機器 | ![]() モデル: Talos Arctica / 画像提供: FEI Company | ||||||
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| 顕微鏡 | モデル: FEI TALOS ARCTICA | ||||||
| 電子銃 | 電子線源: FIELD EMISSION GUN / 加速電圧: 200 kV / 照射モード: FLOOD BEAM | ||||||
| 電子レンズ | モード: BRIGHT FIELD / 倍率(補正後): 72886 X / 最大 デフォーカス(公称値): 2500 nm / 最小 デフォーカス(公称値): 300 nm / Cs: 2.7 mm / C2レンズ絞り径: 50 µm / アライメント法: ZEMLIN TABLEAU | ||||||
| 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 | Imaging-ID: 1 / 平均露光時間: 2 sec. / 電子線照射量: 69 e/Å2 / フィルム・検出器のモデル: GATAN K3 (6k x 4k) / 撮影したグリッド数: 1 / 詳細: 69 frames per movie
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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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| EMソフトウェア |
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| CTF補正 | 詳細: CTF estimation with CTFFIND4, CTF correction in RELION 3.1 during reconstruction. タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||||||||||||||||||||||||||
| 粒子像の選択 | 選択した粒子像数: 8982448 / 詳細: 3D-template picking | ||||||||||||||||||||||||||||||||||||||||||||||||
| 対称性 | 点対称性: C1 (非対称) | ||||||||||||||||||||||||||||||||||||||||||||||||
| 3次元再構成 | 解像度: 2.8 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 168906 / アルゴリズム: FOURIER SPACE / クラス平均像の数: 1 / 対称性のタイプ: POINT | ||||||||||||||||||||||||||||||||||||||||||||||||
| 原子モデル構築 | プロトコル: OTHER / 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)
米国, 4件
引用
UCSF Chimera












PDBj
















Trichoplusia ni (イラクサキンウワバ)




