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基本情報
| 登録情報 | データベース: PDB / ID: 9tyg | ||||||||||||||||||||||||||||||
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| タイトル | Structure of the MAP2K MEK1 in an inactive conformation in complex with its substrate MAPK ERK2 | ||||||||||||||||||||||||||||||
要素 |
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キーワード | SIGNALING PROTEIN / protein kinases / phosphoryl transfer / MAPK / MAP2K / cancer signaling | ||||||||||||||||||||||||||||||
| 機能・相同性 | 機能・相同性情報symbiont-mediated activation of host MAPK cascade / negative regulation of homotypic cell-cell adhesion / epithelial cell proliferation involved in lung morphogenesis / positive regulation of endodermal cell differentiation / negative regulation of hypoxia-induced intrinsic apoptotic signaling pathway / regulation of vascular associated smooth muscle contraction / phospho-PLA2 pathway / mitogen-activated protein kinase kinase / Signaling by MAPK mutants / positive regulation of muscle contraction ...symbiont-mediated activation of host MAPK cascade / negative regulation of homotypic cell-cell adhesion / epithelial cell proliferation involved in lung morphogenesis / positive regulation of endodermal cell differentiation / negative regulation of hypoxia-induced intrinsic apoptotic signaling pathway / regulation of vascular associated smooth muscle contraction / phospho-PLA2 pathway / mitogen-activated protein kinase kinase / Signaling by MAPK mutants / positive regulation of muscle contraction / Golgi inheritance / placenta blood vessel development / MAP kinase scaffold activity / RAF-independent MAPK1/3 activation / Suppression of apoptosis / regulation of axon regeneration / cerebellar cortex formation / labyrinthine layer development / Gastrin-CREB signalling pathway via PKC and MAPK / Signaling by Activin / melanosome transport / cytosine metabolic process / cardiac neural crest cell development involved in heart development / interleukin-34-mediated signaling pathway / caveolin-mediated endocytosis / response to epidermal growth factor / Signaling by NODAL / Signaling by MAP2K mutants / RSK activation / ERKs are inactivated / type B pancreatic cell proliferation / Regulation of the apoptosome activity / Golgi Cisternae Pericentriolar Stack Reorganization / positive regulation of macrophage proliferation / central nervous system neuron differentiation / outer ear morphogenesis / vesicle transport along microtubule / positive regulation of Ras protein signal transduction / : / Signaling by LTK in cancer / regulation of Golgi inheritance / positive regulation of peptidyl-threonine phosphorylation / mitogen-activated protein kinase kinase kinase binding / ERBB signaling pathway / labyrinthine layer blood vessel development / mammary gland epithelial cell proliferation / positive regulation of axonogenesis / trachea formation / triglyceride homeostasis / regulation of early endosome to late endosome transport / Negative feedback regulation of MAPK pathway / regulation of stress-activated MAPK cascade / IFNG signaling activates MAPKs / positive regulation of neuroinflammatory response / Frs2-mediated activation / MAPK3 (ERK1) activation / Activation of the AP-1 family of transcription factors / ERBB2-ERBB3 signaling pathway / RUNX2 regulates osteoblast differentiation / response to exogenous dsRNA / ERK/MAPK targets / MAPK1 (ERK2) activation / positive regulation of macrophage chemotaxis / regulation of cytoskeleton organization / face development / endodermal cell differentiation / MAP kinase kinase activity / regulation of neurotransmitter receptor localization to postsynaptic specialization membrane / Bergmann glial cell differentiation / positive regulation of protein serine/threonine kinase activity / Recycling pathway of L1 / lung morphogenesis / thyroid gland development / positive regulation of telomere maintenance / pseudopodium / positive regulation of ATP biosynthetic process / Advanced glycosylation endproduct receptor signaling / Uptake and function of anthrax toxins / MAP kinase activity / regulation of ossification / mitogen-activated protein kinase / Regulation of HSF1-mediated heat shock response / negative regulation of cell differentiation / RHO GTPases Activate NADPH Oxidases / Estrogen-dependent nuclear events downstream of ESR-membrane signaling / RHO GTPases Activate WASPs and WAVEs / protein kinase activator activity / Signal attenuation / Growth hormone receptor signaling / Schwann cell development / response to axon injury / stress-activated MAPK cascade / phosphatase binding / Estrogen-stimulated signaling through PRKCZ / keratinocyte differentiation / neuron projection morphogenesis / ERK1 and ERK2 cascade / NPAS4 regulates expression of target genes / Nuclear events stimulated by ALK signaling in cancer / phosphotyrosine residue binding 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: 2.9 Å | ||||||||||||||||||||||||||||||
データ登録者 | von Velsen, J. / Juyoux, P. / Bowler, M.W. | ||||||||||||||||||||||||||||||
| 資金援助 | 1件
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引用 | ジャーナル: bioRxiv / 年: 2026タイトル: Molecular basis of mitogen-activated protein kinase ERK2 activation by its upstream kinase MEK1. 著者: Jill von Velsen / Pauline Juyoux / Nicola Piasentin / Hayden Fisher / Karine Lapouge / Oscar Vadas / Francesco Luigi Gervasio / Matthew W Bowler / ![]() 要旨: The RAS-RAF-MEK-ERK mitogen-activated protein kinase (MAPK) pathway relays extracellular signals into a cellular response and its dysregulation leads to many pathologies, particularly cancer. Here, ...The RAS-RAF-MEK-ERK mitogen-activated protein kinase (MAPK) pathway relays extracellular signals into a cellular response and its dysregulation leads to many pathologies, particularly cancer. Here, we determined cryo-EM structures of the MAP2K MEK1 activating its substrate MAPK ERK2, the final event in the cascade. We define the molecular details of specificity and phosphoryl transfer to the tyrosine of the ERK2 activation loop and examine the mechanism of substrate recognition using solution techniques and molecular dynamics. Binding of the substrate MAPK leads to release of the MAP2K catalytic machinery, explaining the mechanism of many disease-causing mutations, and ERK2 release is not required for nucleotide exchange, suggesting a processive mechanism. Our data advance the understanding of MAPK signalling and provide a starting point for drug development. | ||||||||||||||||||||||||||||||
| 履歴 |
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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 | 9tyg.cif.gz | 325.9 KB | 表示 | PDBx/mmCIF形式 |
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| PDB形式 | pdb9tyg.ent.gz | 211.3 KB | 表示 | PDB形式 |
| PDBx/mmJSON形式 | 9tyg.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/ty/9tyg ftp://data.pdbj.org/pub/pdb/validation_reports/ty/9tyg | 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: 44981.562 Da / 分子数: 1 変異: residue 3-11 replaced with 15 residues GRA24 KIM,Ser218Asp,Ser222Asp 由来タイプ: 組換発現 詳細: protein chimera of human MEK1, exchanging native KIM (r3-11) by GRA24 KIM (15 residues). Addition of activating mutations on serines in activation-loop: Ser218Asp, Ser222Asp.,protein chimera ...詳細: protein chimera of human MEK1, exchanging native KIM (r3-11) by GRA24 KIM (15 residues). Addition of activating mutations on serines in activation-loop: Ser218Asp, Ser222Asp.,protein chimera of human MEK1, exchanging native KIM (r3-11) by GRA24 KIM (15 residues). Addition of activating mutations on serines in activation-loop: Ser218Asp, Ser222Asp.,protein chimera of human MEK1, exchanging native KIM (r3-11) by GRA24 KIM (15 residues). Addition of activating mutations on serines in activation-loop: Ser218Asp, Ser222Asp.,protein chimera of human MEK1, exchanging native KIM (r3-11) by GRA24 KIM (15 residues). Addition of activating mutations on serines in activation-loop: Ser218Asp, Ser222Asp.,protein chimera of human MEK1, exchanging native KIM (r3-11) by GRA24 KIM (15 residues). Addition of activating mutations on serines in activation-loop: Ser218Asp, Ser222Asp.,protein chimera of human MEK1, exchanging native KIM (r3-11) by GRA24 KIM (15 residues). Addition of activating mutations on serines in activation-loop: Ser218Asp, Ser222Asp. 由来: (組換発現) Homo sapiens (ヒト), (組換発現) ![]() 遺伝子: MAP2K1, MEK1, PRKMK1, TGME49_230180 / 細胞株 (発現宿主): High Five / 発現宿主: Trichoplusia ni (イラクサキンウワバ)参照: UniProt: Q02750, UniProt: A0A125YG37, mitogen-activated protein kinase kinase | ||||||
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| #2: タンパク質 | 分子量: 41724.977 Da / 分子数: 1 / 変異: Thr185Val / 由来タイプ: 組換発現 / 詳細: ERK2 with point mutation on residue 185 to a valine / 由来: (組換発現) Homo sapiens (ヒト) / 遺伝子: MAPK1, ERK2, PRKM1, PRKM2 / 発現宿主: ![]() | ||||||
| #3: 化合物 | | #4: 化合物 | ChemComp-MG / | 研究の焦点であるリガンドがあるか | Y | 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
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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: 0.516 mg/ml / 包埋: NO / シャドウイング: NO / 染色: NO / 凍結: YES / 詳細: 250 uM ADP.AlF4- was added to the sample | ||||||||||||||||||||||||||||||
| 試料支持 | グリッドの材料: GOLD / グリッドのタイプ: HexAuFoil | ||||||||||||||||||||||||||||||
| 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: 279.15 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: 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): 270000 X / 最大 デフォーカス(公称値): 2200 nm / 最小 デフォーカス(公称値): 1000 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 | 平均露光時間: 1.7 sec. / 電子線照射量: 50 e/Å2 フィルム・検出器のモデル: TFS FALCON 4i (4k x 4k) 撮影したグリッド数: 1 / 実像数: 88517 |
| 電子光学装置 | エネルギーフィルター名称: TFS Selectris X / エネルギーフィルタースリット幅: 10 eV |
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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: 2.9 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 142124 / 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 | Source name: AlphaFold / タイプ: in silico model | |||||||||||||||||||||||||
| 精密化 | 交差検証法: NONE 立体化学のターゲット値: GeoStd + Monomer Library + CDL v1.2 | |||||||||||||||||||||||||
| 原子変位パラメータ | Biso mean: 156.75 Å2 | |||||||||||||||||||||||||
| 拘束条件 |
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万見について




Homo sapiens (ヒト)

引用







PDBj

































Trichoplusia ni (イラクサキンウワバ)



FIELD EMISSION GUN