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基本情報
登録情報 | データベース: PDB / ID: 6q0j | |||||||||
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タイトル | Structure of a MAPK pathway complex | |||||||||
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![]() | Transferase/PROTEIN BINDING / TRANSFERASE / Transferase-PROTEIN BINDING complex | |||||||||
機能・相同性 | ![]() epithelial cell proliferation involved in lung morphogenesis / positive regulation of endodermal cell differentiation / CD4-positive, alpha-beta T cell differentiation / placenta blood vessel development / trehalose metabolism in response to stress / regulation of axon regeneration / CD4-positive or CD8-positive, alpha-beta T cell lineage commitment / mitogen-activated protein kinase kinase / negative regulation of synaptic vesicle exocytosis / labyrinthine layer development ...epithelial cell proliferation involved in lung morphogenesis / positive regulation of endodermal cell differentiation / CD4-positive, alpha-beta T cell differentiation / placenta blood vessel development / trehalose metabolism in response to stress / regulation of axon regeneration / CD4-positive or CD8-positive, alpha-beta T cell lineage commitment / mitogen-activated protein kinase kinase / negative regulation of synaptic vesicle exocytosis / labyrinthine layer development / MAP-kinase scaffold activity / type B pancreatic cell proliferation / Signalling to p38 via RIT and RIN / cerebellar cortex formation / head morphogenesis / myeloid progenitor cell differentiation / ARMS-mediated activation / SHOC2 M1731 mutant abolishes MRAS complex function / Gain-of-function MRAS complexes activate RAF signaling / endothelial cell apoptotic process / Signaling by MAP2K mutants / negative regulation of fibroblast migration / positive regulation of glucose transmembrane transport / establishment of protein localization to membrane / regulation of Golgi inheritance / mitogen-activated protein kinase kinase binding / trachea formation / regulation of T cell differentiation / Negative feedback regulation of MAPK pathway / regulation of early endosome to late endosome transport / positive regulation of axonogenesis / regulation of stress-activated MAPK cascade / Frs2-mediated activation / ERBB2-ERBB3 signaling pathway / stress fiber assembly / positive regulation of axon regeneration / protein kinase activator activity / endodermal cell differentiation / face development / MAPK3 (ERK1) activation / synaptic vesicle exocytosis / somatic stem cell population maintenance / Bergmann glial cell differentiation / MAP kinase kinase activity / thyroid gland development / Uptake and function of anthrax toxins / MAP kinase kinase kinase activity / Schwann cell development / negative regulation of endothelial cell apoptotic process / positive regulation of substrate adhesion-dependent cell spreading / keratinocyte differentiation / positive regulation of stress fiber assembly / response to cAMP / cellular response to calcium ion / ERK1 and ERK2 cascade / myelination / protein serine/threonine/tyrosine kinase activity / protein serine/threonine kinase activator activity / MAP3K8 (TPL2)-dependent MAPK1/3 activation / substrate adhesion-dependent cell spreading / insulin-like growth factor receptor signaling pathway / cellular response to nerve growth factor stimulus / thymus development / Signal transduction by L1 / cell motility / long-term synaptic potentiation / animal organ morphogenesis / RAF activation / Spry regulation of FGF signaling / Signaling by high-kinase activity BRAF mutants / visual learning / MAP2K and MAPK activation / positive regulation of protein serine/threonine kinase activity / neuron differentiation / epidermal growth factor receptor signaling pathway / response to peptide hormone / Negative regulation of MAPK pathway / Signaling by RAF1 mutants / Signaling by moderate kinase activity BRAF mutants / Paradoxical activation of RAF signaling by kinase inactive BRAF / Signaling downstream of RAS mutants / chemotaxis / MAPK cascade / cellular senescence / Signaling by BRAF and RAF1 fusions / cellular response to xenobiotic stimulus / late endosome / presynapse / positive regulation of peptidyl-serine phosphorylation / heart development / T cell receptor signaling pathway / regulation of cell population proliferation / cell body / T cell differentiation in thymus / scaffold protein binding / protein tyrosine kinase activity / negative regulation of neuron apoptotic process / Ras protein signal transduction / positive regulation of ERK1 and ERK2 cascade / early endosome 類似検索 - 分子機能 | |||||||||
生物種 | ![]() ![]() | |||||||||
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: 4.9 Å | |||||||||
![]() | Park, E. / Rawson, S. / Jeon, H. / Eck, M.J. | |||||||||
資金援助 | ![]()
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![]() | ![]() タイトル: Architecture of autoinhibited and active BRAF-MEK1-14-3-3 complexes. 著者: Eunyoung Park / Shaun Rawson / Kunhua Li / Byeong-Won Kim / Scott B Ficarro / Gonzalo Gonzalez-Del Pino / Humayun Sharif / Jarrod A Marto / Hyesung Jeon / Michael J Eck / ![]() 要旨: RAF family kinases are RAS-activated switches that initiate signalling through the MAP kinase cascade to control cellular proliferation, differentiation and survival. RAF activity is tightly ...RAF family kinases are RAS-activated switches that initiate signalling through the MAP kinase cascade to control cellular proliferation, differentiation and survival. RAF activity is tightly regulated and inappropriate activation is a frequent cause of cancer; however, the structural basis for RAF regulation is poorly understood at present. Here we use cryo-electron microscopy to determine autoinhibited and active-state structures of full-length BRAF in complexes with MEK1 and a 14-3-3 dimer. The reconstruction reveals an inactive BRAF-MEK1 complex restrained in a cradle formed by the 14-3-3 dimer, which binds the phosphorylated S365 and S729 sites that flank the BRAF kinase domain. The BRAF cysteine-rich domain occupies a central position that stabilizes this assembly, but the adjacent RAS-binding domain is poorly ordered and peripheral. The 14-3-3 cradle maintains autoinhibition by sequestering the membrane-binding cysteine-rich domain and blocking dimerization of the BRAF kinase domain. In the active state, these inhibitory interactions are released and a single 14-3-3 dimer rearranges to bridge the C-terminal pS729 binding sites of two BRAFs, which drives the formation of an active, back-to-back BRAF dimer. Our structural snapshots provide a foundation for understanding normal RAF regulation and its mutational disruption in cancer and developmental syndromes. | |||||||||
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構造の表示
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構造ビューア | 分子: ![]() ![]() |
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PDBx/mmCIF形式 | ![]() | 269.7 KB | 表示 | ![]() |
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PDB形式 | ![]() | 183.6 KB | 表示 | ![]() |
PDBx/mmJSON形式 | ![]() | ツリー表示 | ![]() | |
その他 | ![]() |
-検証レポート
文書・要旨 | ![]() | 996.6 KB | 表示 | ![]() |
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文書・詳細版 | ![]() | 1006.7 KB | 表示 | |
XML形式データ | ![]() | 41.2 KB | 表示 | |
CIF形式データ | ![]() | 64.1 KB | 表示 | |
アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
-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
-タンパク質 , 3種, 6分子 ABCDXY
#1: タンパク質 | 分子量: 89306.812 Da / 分子数: 2 / 変異: S365A / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() 発現宿主: ![]() ![]() 参照: UniProt: P15056, non-specific serine/threonine protein kinase #2: タンパク質 | 分子量: 45934.543 Da / 分子数: 2 / 変異: S218A, S222A / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() 発現宿主: ![]() ![]() 参照: UniProt: Q02750, mitogen-activated protein kinase kinase #3: タンパク質 | 分子量: 28108.514 Da / 分子数: 2 / 由来タイプ: 天然 由来: (天然) ![]() 参照: UniProt: V9P4T4 |
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-非ポリマー , 3種, 6分子 ![](data/chem/img/MG.gif)
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#4: 化合物 | #5: 化合物 | #6: 化合物 | |
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-詳細
研究の焦点であるリガンドがあるか | Y |
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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: ERK pathway complex / タイプ: COMPLEX 詳細: insect cell endogenous 14-3-3 co-purified with human BRAF and MEK Entity ID: #1-#3 / 由来: MULTIPLE SOURCES |
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分子量 | 値: 325 kDa/nm / 実験値: YES |
由来(天然) | 生物種: ![]() |
由来(組換発現) | 生物種: ![]() ![]() |
緩衝液 | pH: 7.5 |
試料 | 包埋: NO / シャドウイング: NO / 染色: NO / 凍結: YES |
急速凍結 | 凍結剤: ETHANE |
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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: ![]() |
電子レンズ | モード: OTHER |
撮影 | 電子線照射量: 53 e/Å2 / フィルム・検出器のモデル: GATAN K3 (6k x 4k) |
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解析
CTF補正 | タイプ: NONE |
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3次元再構成 | 解像度: 4.9 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 425135 / 対称性のタイプ: POINT |
原子モデル構築 | プロトコル: RIGID BODY FIT |