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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: 9i9k | ||||||||||||||||||||||||
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| タイトル | Cryo-EM structure of CAK-CDK2 (determined in the presence of ADP-AlFx) | ||||||||||||||||||||||||
要素 |
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キーワード | TRANSFERASE / Complex / cell cycle / kinase | ||||||||||||||||||||||||
| 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 / CAK-ERCC2 complex / transcription factor TFIIK complex / adult heart development / transcription factor TFIIH core complex / transcription factor TFIIH holo complex / cyclin-dependent protein serine/threonine kinase activator activity / [RNA-polymerase]-subunit kinase ...RNA polymerase II CTD heptapeptide repeat S5 kinase activity / ventricular system development / snRNA transcription by RNA polymerase II / CAK-ERCC2 complex / transcription factor TFIIK complex / adult heart development / transcription factor TFIIH core complex / transcription factor TFIIH holo complex / cyclin-dependent protein serine/threonine kinase activator activity / [RNA-polymerase]-subunit kinase / RNA Polymerase I Transcription Termination / cyclin-dependent protein serine/threonine kinase regulator activity / cyclin A1-CDK2 complex / cyclin E2-CDK2 complex / cyclin E1-CDK2 complex / cyclin A2-CDK2 complex / positive regulation of DNA-templated DNA replication initiation / G2 Phase / Y chromosome / cyclin-dependent protein kinase activity / Phosphorylation of proteins involved in G1/S transition by active Cyclin E:Cdk2 complexes / RNA Pol II CTD phosphorylation and interaction with CE during HIV infection / RNA Pol II CTD phosphorylation and interaction with CE / positive regulation of heterochromatin formation / p53-Dependent G1 DNA Damage Response / 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 / Formation of the Early Elongation Complex / Formation of the HIV-1 Early Elongation Complex / X chromosome / mRNA Capping / PTK6 Regulates Cell Cycle / regulation of anaphase-promoting complex-dependent catabolic process / Defective binding of RB1 mutants to E2F1,(E2F2, E2F3) / centriole replication / Regulation of APC/C activators between G1/S and early anaphase / telomere maintenance in response to DNA damage / centrosome duplication / RNA Polymerase I Transcription Initiation / regulation of G1/S transition of mitotic cell cycle / G0 and Early G1 / RNA polymerase II transcribes snRNA genes / Telomere Extension By Telomerase / Activation of the pre-replicative complex / cyclin-dependent kinase / ATP-dependent activity, acting on DNA / cyclin-dependent protein serine/threonine kinase activity / TP53 Regulates Transcription of Genes Involved in G1 Cell Cycle Arrest / Tat-mediated elongation of the HIV-1 transcript / Formation of HIV-1 elongation complex containing HIV-1 Tat / Activation of ATR in response to replication stress / Regulation of MITF-M-dependent genes involved in cell cycle and proliferation / Cajal body / Cyclin E associated events during G1/S transition / Formation of HIV elongation complex in the absence of HIV Tat / Cyclin A:Cdk2-associated events at S phase entry / Cyclin A/B1/B2 associated events during G2/M transition / cyclin-dependent protein kinase holoenzyme complex / RNA Polymerase II Transcription Elongation / Formation of RNA Pol II elongation complex / condensed chromosome / regulation of G2/M transition of mitotic cell cycle / mitotic G1 DNA damage checkpoint signaling / RNA Polymerase II Pre-transcription Events / positive regulation of smooth muscle cell proliferation / RNA polymerase II CTD heptapeptide repeat kinase activity / cellular response to nitric oxide / post-translational protein modification / regulation of mitotic cell cycle / cyclin binding / positive regulation of DNA replication / meiotic cell cycle / 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 / response to calcium ion / peptidyl-serine phosphorylation / NoRC negatively regulates rRNA expression / potassium ion transport / DNA Damage/Telomere Stress Induced Senescence / CDK-mediated phosphorylation and removal of Cdc6 / Meiotic recombination / Transcription-Coupled Nucleotide Excision Repair (TC-NER) / SCF(Skp2)-mediated degradation of p27/p21 / G2/M transition of mitotic cell cycle / Formation of TC-NER Pre-Incision Complex / Formation of Incision Complex in GG-NER / fibrillar center / Transcriptional regulation of granulopoiesis / Orc1 removal from chromatin / Dual incision in TC-NER / Gap-filling DNA repair synthesis and ligation in TC-NER 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: 2.4 Å | ||||||||||||||||||||||||
データ登録者 | Cushing, V.I. / Greber, B.J. / McGeoch, A.J.S. / Feng, J. | ||||||||||||||||||||||||
| 資金援助 | 英国, 2件
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引用 | ジャーナル: Science / 年: 2025タイトル: Structural basis of T-loop-independent recognition and activation of CDKs by the CDK-activating kinase. 著者: Victoria I Cushing / Amy J S McGeoch / Sophie L Williams / Theodoros I Roumeliotis / Junjie Feng / Lucy M Dan / Jyoti S Choudhary / Norman E Davey / Basil J Greber / ![]() 要旨: Cyclin-dependent kinases (CDKs) are prototypical regulators of the cell cycle. The CDK-activating kinase (CAK) acts as a master regulator of CDK activity by catalyzing the activating phosphorylation ...Cyclin-dependent kinases (CDKs) are prototypical regulators of the cell cycle. The CDK-activating kinase (CAK) acts as a master regulator of CDK activity by catalyzing the activating phosphorylation of CDKs on a conserved threonine residue within the regulatory T-loop. However, structural data illuminating the mechanism by which the CAK recognizes and activates CDKs have remained elusive. In this study, we determined high-resolution structures of the CAK in complex with CDK2 and CDK2-cyclin A2 by cryogenic electron microscopy. Our structures reveal a T-loop-independent kinase-kinase interface with contributions from both kinase lobes. Computational analysis and structures of the CAK in complex with CDK1-cyclin B1 and CDK11 indicate that these structures represent the general architecture of CAK-CDK complexes. These results advance our mechanistic understanding of cell cycle regulation and kinase signaling cascades. | ||||||||||||||||||||||||
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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 | 9i9k.cif.gz | 211.1 KB | 表示 | PDBx/mmCIF形式 |
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| PDB形式 | pdb9i9k.ent.gz | 157.3 KB | 表示 | PDB形式 |
| PDBx/mmJSON形式 | 9i9k.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
| 文書・要旨 | 9i9k_validation.pdf.gz | 1.4 MB | 表示 | wwPDB検証レポート |
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| 文書・詳細版 | 9i9k_full_validation.pdf.gz | 1.4 MB | 表示 | |
| XML形式データ | 9i9k_validation.xml.gz | 33.7 KB | 表示 | |
| CIF形式データ | 9i9k_validation.cif.gz | 50.8 KB | 表示 | |
| アーカイブディレクトリ | https://data.pdbj.org/pub/pdb/validation_reports/i9/9i9k ftp://data.pdbj.org/pub/pdb/validation_reports/i9/9i9k | HTTPS FTP |
-関連構造データ
| 関連構造データ | ![]() 52761MC ![]() 9i9iC ![]() 9i9jC ![]() 9qcvC ![]() 9qcxC ![]() 9skqC 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
-タンパク質 , 2種, 2分子 HI
| #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 / 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: 37721.508 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 / 発現宿主: Trichoplusia ni (イラクサキンウワバ) / 参照: UniProt: P51946 |
-Cyclin-dependent kinase ... , 2種, 2分子 JK
| #3: タンパク質 | 分子量: 43651.070 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 / 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 |
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| #4: タンパク質 | 分子量: 34248.750 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: CDK2, CDKN2 / 発現宿主: ![]() |
-非ポリマー , 3種, 26分子 




| #5: 化合物 | | #6: 化合物 | ChemComp-MG / #7: 水 | ChemComp-HOH / | |
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-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 |
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| 分子量 |
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| 由来(天然) |
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| 由来(組換発現) |
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| 緩衝液 | pH: 7.5 | |||||||||||||||||||||||||||||||||||
| 緩衝液成分 |
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| 試料 | 濃度: 0.5 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: 278 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: 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 / 倍率(公称値): 165000 X / 最大 デフォーカス(公称値): 2100 nm / 最小 デフォーカス(公称値): 500 nm / Cs: 2.7 mm |
| 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: 70 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 / 実像数: 23694 |
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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 | ||||||||||||||||||||||||||||||||||||||||||||
| 3次元再構成 | 解像度: 2.4 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 432172 / アルゴリズム: FOURIER SPACE / 対称性のタイプ: POINT | ||||||||||||||||||||||||||||||||||||||||||||
| 原子モデル構築 | プロトコル: RIGID BODY FIT / 空間: REAL | ||||||||||||||||||||||||||||||||||||||||||||
| 原子モデル構築 |
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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, 2件
引用











PDBj
















Trichoplusia ni (イラクサキンウワバ)

FIELD EMISSION GUN

