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基本情報
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タイトル | Cryo-EM structure of CDK2-cyclin A in complex with CDC25A | |||||||||
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![]() | cell-cycle / CDK / phosphatase / cancer / CELL CYCLE | |||||||||
機能・相同性 | ![]() positive regulation of G2/MI transition of meiotic cell cycle / cell cycle G1/S phase transition / Polo-like kinase mediated events / Transcription of E2F targets under negative control by DREAM complex / regulation of cyclin-dependent protein serine/threonine kinase activity / cyclin-dependent protein serine/threonine kinase regulator activity / cyclin A1-CDK2 complex / cyclin E2-CDK2 complex / cyclin E1-CDK2 complex / Deregulated CDK5 triggers multiple neurodegenerative pathways in Alzheimer's disease models ...positive regulation of G2/MI transition of meiotic cell cycle / cell cycle G1/S phase transition / Polo-like kinase mediated events / Transcription of E2F targets under negative control by DREAM complex / regulation of cyclin-dependent protein serine/threonine kinase activity / cyclin-dependent protein serine/threonine kinase regulator activity / cyclin A1-CDK2 complex / cyclin E2-CDK2 complex / cyclin E1-CDK2 complex / Deregulated CDK5 triggers multiple neurodegenerative pathways in Alzheimer's disease models / cyclin A2-CDK2 complex / positive regulation of DNA-templated DNA replication initiation / cyclin-dependent protein kinase activity / G2 Phase / Y chromosome / Phosphorylation of proteins involved in G1/S transition by active Cyclin E:Cdk2 complexes / positive regulation of heterochromatin formation / p53-Dependent G1 DNA Damage Response / X chromosome / PTK6 Regulates Cell Cycle / regulation of anaphase-promoting complex-dependent catabolic process / Defective binding of RB1 mutants to E2F1,(E2F2, E2F3) / microtubule organizing center / centriole replication / Regulation of APC/C activators between G1/S and early anaphase / telomere maintenance in response to DNA damage / regulation of DNA replication / centrosome duplication / phosphoprotein phosphatase activity / Telomere Extension By Telomerase / G0 and Early G1 / Activation of the pre-replicative complex / cyclin-dependent kinase / cyclin-dependent protein serine/threonine kinase activity / TP53 Regulates Transcription of Genes Involved in G1 Cell Cycle Arrest / Regulation of MITF-M-dependent genes involved in cell cycle and proliferation / Cajal body / Activation of ATR in response to replication stress / Cyclin E associated events during G1/S transition / Cyclin A/B1/B2 associated events during G2/M transition / Cyclin A:Cdk2-associated events at S phase entry / cyclin-dependent protein kinase holoenzyme complex / condensed chromosome / regulation of G2/M transition of mitotic cell cycle / mitotic G1 DNA damage checkpoint signaling / positive regulation of G2/M transition of mitotic cell cycle / protein tyrosine phosphatase activity, metal-dependent / histone H2AXY142 phosphatase activity / non-membrane spanning protein tyrosine phosphatase activity / protein-tyrosine-phosphatase / protein tyrosine phosphatase activity / cellular response to nitric oxide / post-translational protein modification / cyclin binding / regulation of mitotic cell cycle / male germ cell nucleus / positive regulation of DNA replication / meiotic cell cycle / Ubiquitin-Mediated Degradation of Phosphorylated Cdc25A / response to radiation / potassium ion transport / DNA Damage/Telomere Stress Induced Senescence / Meiotic recombination / CDK-mediated phosphorylation and removal of Cdc6 / SCF(Skp2)-mediated degradation of p27/p21 / G1/S transition of mitotic cell cycle / Transcriptional regulation of granulopoiesis / Orc1 removal from chromatin / G2/M transition of mitotic cell cycle / Cyclin D associated events in G1 / cellular senescence / Regulation of TP53 Degradation / nuclear envelope / peptidyl-serine phosphorylation / protein-folding chaperone binding / Factors involved in megakaryocyte development and platelet production / Processing of DNA double-strand break ends / regulation of gene expression / Senescence-Associated Secretory Phenotype (SASP) / Regulation of TP53 Activity through Phosphorylation / transcription regulator complex / Ras protein signal transduction / chromosome, telomeric region / cell population proliferation / DNA replication / endosome / Ub-specific processing proteases / protein phosphorylation / chromatin remodeling / protein domain specific binding / cell division / protein serine kinase activity / DNA repair / protein serine/threonine kinase activity / DNA-templated transcription / positive regulation of cell population proliferation / centrosome / protein kinase binding / positive regulation of DNA-templated transcription / negative regulation of transcription by RNA polymerase II 類似検索 - 分子機能 | |||||||||
生物種 | ![]() ![]() ![]() | |||||||||
手法 | 単粒子再構成法 / クライオ電子顕微鏡法 / 解像度: 2.7 Å | |||||||||
![]() | Rowland RJ / Noble MEM / Endicott JA | |||||||||
資金援助 | ![]()
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![]() | ![]() タイトル: Cryo-EM structure of the CDK2-cyclin A-CDC25A complex. 著者: Rhianna J Rowland / Svitlana Korolchuk / Marco Salamina / Natalie J Tatum / James R Ault / Sam Hart / Johan P Turkenburg / James N Blaza / Martin E M Noble / Jane A Endicott / ![]() 要旨: The cell division cycle 25 phosphatases CDC25A, B and C regulate cell cycle transitions by dephosphorylating residues in the conserved glycine-rich loop of CDKs to activate their activity. Here, we ...The cell division cycle 25 phosphatases CDC25A, B and C regulate cell cycle transitions by dephosphorylating residues in the conserved glycine-rich loop of CDKs to activate their activity. Here, we present the cryo-EM structure of CDK2-cyclin A in complex with CDC25A at 2.7 Å resolution, providing a detailed structural analysis of the overall complex architecture and key protein-protein interactions that underpin this 86 kDa complex. We further identify a CDC25A C-terminal helix that is critical for complex formation. Sequence conservation analysis suggests CDK1/2-cyclin A, CDK1-cyclin B and CDK2/3-cyclin E are suitable binding partners for CDC25A, whilst CDK4/6-cyclin D complexes appear unlikely substrates. A comparative structural analysis of CDK-containing complexes also confirms the functional importance of the conserved CDK1/2 GDSEID motif. This structure improves our understanding of the roles of CDC25 phosphatases in CDK regulation and may inform the development of CDC25-targeting anticancer strategies. | |||||||||
履歴 |
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構造の表示
添付画像 |
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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 | ![]() | 85.8 MB | ![]() | |
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ヘッダ (付随情報) | ![]() ![]() | 21.6 KB 21.6 KB | 表示 表示 | ![]() |
FSC (解像度算出) | ![]() | 9.5 KB | 表示 | ![]() |
画像 | ![]() | 122.1 KB | ||
マスクデータ | ![]() | 91.1 MB | ![]() | |
Filedesc metadata | ![]() | 7 KB | ||
その他 | ![]() ![]() | 84.6 MB 84.6 MB | ||
アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
-検証レポート
文書・要旨 | ![]() | 805.4 KB | 表示 | ![]() |
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文書・詳細版 | ![]() | 804.9 KB | 表示 | |
XML形式データ | ![]() | 17.6 KB | 表示 | |
CIF形式データ | ![]() | 22.7 KB | 表示 | |
アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
-関連構造データ
関連構造データ | ![]() 8rozMC M: このマップから作成された原子モデル 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 ![]() |
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リンク
EMDBのページ | ![]() ![]() |
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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 | ![]() | ||||||||||||||||||||||||||||||||||||
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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: 0.825 Å | ||||||||||||||||||||||||||||||||||||
密度 |
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対称性 | 空間群: 1 | ||||||||||||||||||||||||||||||||||||
詳細 | EMDB XML:
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-添付データ
-マスク #1
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投影像・断面図 |
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密度ヒストグラム |
-ハーフマップ: #2
ファイル | emd_19408_half_map_1.map | ||||||||||||
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投影像・断面図 |
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密度ヒストグラム |
-ハーフマップ: #1
ファイル | emd_19408_half_map_2.map | ||||||||||||
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投影像・断面図 |
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密度ヒストグラム |
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試料の構成要素
-全体 : Trimeric complex of CDK2-cyclin A-CDC25A
全体 | 名称: Trimeric complex of CDK2-cyclin A-CDC25A |
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要素 |
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-超分子 #1: Trimeric complex of CDK2-cyclin A-CDC25A
超分子 | 名称: Trimeric complex of CDK2-cyclin A-CDC25A / タイプ: complex / ID: 1 / 親要素: 0 / 含まれる分子: all |
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由来(天然) | 生物種: ![]() |
分子量 | 理論値: 86 KDa |
-分子 #1: Cyclin-dependent kinase 2
分子 | 名称: Cyclin-dependent kinase 2 / タイプ: protein_or_peptide / ID: 1 詳細: Human cyclin dependant protein kinase 2 (CDK2) phosphorylated at Tyr15 and Thr160 コピー数: 1 / 光学異性体: LEVO / EC番号: cyclin-dependent kinase |
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由来(天然) | 生物種: ![]() |
分子量 | 理論値: 34.136449 KDa |
組換発現 | 生物種: ![]() ![]() |
配列 | 文字列: MENFQKVEKI GEGT(PTR)GVVYK ARNKLTGEVV ALKKIRLDTE TEGVPSTAIR EISLLKELNH PNIVKLLDVI HTENKL YLV FEFLHQDLKK FMDASALTGI PLPLIKSYLF QLLQGLAFCH SHRVLHRDLK PQNLLINTEG AIKLADFGLA RAFGVPV RT Y(TPO) ...文字列: MENFQKVEKI GEGT(PTR)GVVYK ARNKLTGEVV ALKKIRLDTE TEGVPSTAIR EISLLKELNH PNIVKLLDVI HTENKL YLV FEFLHQDLKK FMDASALTGI PLPLIKSYLF QLLQGLAFCH SHRVLHRDLK PQNLLINTEG AIKLADFGLA RAFGVPV RT Y(TPO)HEVVTLWY RAPEILLGCK YYSTAVDIWS LGCIFAEMVT RRALFPGDSE IDQLFRIFRT LGTPDEVVWP GVTS MPDYK PSFPKWARQD FSKVVPPLDE DGRSLLSQML HYDPNKRISA KAALAHPFFQ DVTKPVPHLR L UniProtKB: Cyclin-dependent kinase 2 |
-分子 #2: Cyclin-A2
分子 | 名称: Cyclin-A2 / タイプ: protein_or_peptide / ID: 2 / 詳細: Bovine cyclin A2 / コピー数: 1 / 光学異性体: LEVO |
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由来(天然) | 生物種: ![]() ![]() |
分子量 | 理論値: 30.119799 KDa |
組換発現 | 生物種: ![]() ![]() |
配列 | 文字列: MGVNEVPDYH EDIHTYLREM EVKCKPKVGY MKKQPDITNS MRAILVDWLV EVGEEYKLQN ETLHLAVNYI DRFLSSMSVL RGKLQLVGT AAMLLASKFE EIYPPEVAEF VYITDDTYTK KQVLRMEHLV LKVLAFDLAA PTINQFLTQY FLHQQPANCK V ESLAMFLG ...文字列: MGVNEVPDYH EDIHTYLREM EVKCKPKVGY MKKQPDITNS MRAILVDWLV EVGEEYKLQN ETLHLAVNYI DRFLSSMSVL RGKLQLVGT AAMLLASKFE EIYPPEVAEF VYITDDTYTK KQVLRMEHLV LKVLAFDLAA PTINQFLTQY FLHQQPANCK V ESLAMFLG ELSLIDADPY LKYLPSVIAA AAFHLALYTV TGQSWPESLV QKTGYTLETL KPCLLDLHQT YLRAPQHAQQ SI REKYKNS KYHGVSLLNP PETLNV UniProtKB: Cyclin-A2 |
-分子 #3: M-phase inducer phosphatase 1
分子 | 名称: M-phase inducer phosphatase 1 / タイプ: protein_or_peptide / ID: 3 詳細: M-phase inducer phosphatase 1 (CDC25A) catalytic domain コピー数: 1 / 光学異性体: LEVO / EC番号: protein-tyrosine-phosphatase |
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由来(天然) | 生物種: ![]() |
分子量 | 理論値: 22.533123 KDa |
組換発現 | 生物種: ![]() ![]() |
配列 | 文字列: SMVIGDFSKG YLFHTVAGKH QDLKYISPEI MASVLNGKFA NLIKEFVIID CRYPYEYEGG HIKGAVNLHM EEEVEDFLLK KPIVPTDGK RVIVVFHSEF SSERGPRMCR YVRERDRLGN EYPKLHYPEL YVLKGGYKEF FMKCQSYCEP PSYRPMHHED F KEDLKKFR ...文字列: SMVIGDFSKG YLFHTVAGKH QDLKYISPEI MASVLNGKFA NLIKEFVIID CRYPYEYEGG HIKGAVNLHM EEEVEDFLLK KPIVPTDGK RVIVVFHSEF SSERGPRMCR YVRERDRLGN EYPKLHYPEL YVLKGGYKEF FMKCQSYCEP PSYRPMHHED F KEDLKKFR TKSRTWAGEK SKREMYSRLK KL UniProtKB: M-phase inducer phosphatase 1 |
-実験情報
-構造解析
手法 | クライオ電子顕微鏡法 |
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![]() | 単粒子再構成法 |
試料の集合状態 | particle |
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試料調製
濃度 | 1.8 mg/mL | ||||||||||||
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緩衝液 | pH: 7.4 構成要素:
詳細: 50 mM HEPES, 200 mM NaCl, 1 mM DTT, pH 7.4 | ||||||||||||
グリッド | モデル: Quantifoil R1.2/1.3 / 材質: COPPER / メッシュ: 200 / 支持フィルム - 材質: CARBON / 支持フィルム - トポロジー: HOLEY / 前処理 - タイプ: GLOW DISCHARGE / 前処理 - 時間: 60 sec. / 前処理 - 雰囲気: AIR / 前処理 - 気圧: 0.026000000000000002 kPa 詳細: Grids were glow discharged for 1min at 20 mAmp/0.26 mBar | ||||||||||||
凍結 | 凍結剤: ETHANE / チャンバー内湿度: 80 % / チャンバー内温度: 277 K / 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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特殊光学系 | エネルギーフィルター - 名称: GIF Bioquantum / エネルギーフィルター - スリット幅: 20 eV |
撮影 | フィルム・検出器のモデル: GATAN K3 BIOQUANTUM (6k x 4k) 平均露光時間: 1.92 sec. / 平均電子線量: 50.0 e/Å2 |
電子線 | 加速電圧: 300 kV / 電子線源: ![]() |
電子光学系 | C2レンズ絞り径: 100.0 µm / 照射モード: FLOOD BEAM / 撮影モード: BRIGHT FIELD / Cs: 2.7 mm / 最大 デフォーカス(公称値): 2.0 µm / 最小 デフォーカス(公称値): 0.6 µm / 倍率(公称値): 150000 |
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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画像解析
-原子モデル構築 1
初期モデル | Chain - Source name: Other / Chain - Initial model type: in silico model / 詳細: ModelAngelo |
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詳細 | A model was generated using ModelAngelo. Initial local fitting was performed in ChimerX followed by real space refinement in Phenix and manual fitting in coot. |
精密化 | 空間: REAL / プロトコル: AB INITIO MODEL / 温度因子: 144 |
得られたモデル | ![]() PDB-8roz: |