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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: 6uan | |||||||||
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タイトル | B-Raf:14-3-3 complex | |||||||||
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![]() | SIGNALING PROTEIN / Complex Kinase | |||||||||
機能・相同性 | ![]() CD4-positive, alpha-beta T cell differentiation / CD4-positive or CD8-positive, alpha-beta T cell lineage commitment / negative regulation of synaptic vesicle exocytosis / Signalling to p38 via RIT and RIN / 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 ...CD4-positive, alpha-beta T cell differentiation / CD4-positive or CD8-positive, alpha-beta T cell lineage commitment / negative regulation of synaptic vesicle exocytosis / Signalling to p38 via RIT and RIN / 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 / negative regulation of fibroblast migration / positive regulation of glucose transmembrane transport / establishment of protein localization to membrane / mitogen-activated protein kinase kinase binding / regulation of T cell differentiation / Negative feedback regulation of MAPK pathway / positive regulation of axonogenesis / Frs2-mediated activation / stress fiber assembly / positive regulation of axon regeneration / face development / synaptic vesicle exocytosis / somatic stem cell population maintenance / MAP kinase kinase activity / thyroid gland development / MAP kinase kinase kinase activity / negative regulation of endothelial cell apoptotic process / positive regulation of substrate adhesion-dependent cell spreading / positive regulation of stress fiber assembly / response to cAMP / cellular response to calcium ion / ERK1 and ERK2 cascade / substrate adhesion-dependent cell spreading / cellular response to nerve growth factor stimulus / thymus development / long-term synaptic potentiation / animal organ morphogenesis / RAF activation / Spry regulation of FGF signaling / Signaling by high-kinase activity BRAF mutants / MAP2K and MAPK activation / visual learning / 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 / MAPK cascade / Signaling by BRAF and RAF1 fusions / cellular response to xenobiotic stimulus / positive regulation of peptidyl-serine phosphorylation / presynapse / T cell receptor signaling pathway / regulation of cell population proliferation / cell body / T cell differentiation in thymus / scaffold protein binding / negative regulation of neuron apoptotic process / positive regulation of ERK1 and ERK2 cascade / non-specific serine/threonine protein kinase / protein kinase activity / neuron projection / protein phosphorylation / intracellular membrane-bounded organelle / protein serine kinase activity / protein serine/threonine kinase activity / calcium ion binding / positive regulation of gene expression / protein-containing complex binding / negative regulation of apoptotic process / mitochondrion / ATP binding / identical protein binding / nucleus / plasma membrane / cytosol 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: 3.9 Å | |||||||||
![]() | Kondo, Y. / Ognjenovic, J. / Banerjee, S. / Karandur, D. / Merk, A. / Kulhanek, K. / Wong, K. / Roose, J.P. / Subramaniam, S. / Kuriyan, J. | |||||||||
資金援助 | ![]() ![]()
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![]() | ![]() タイトル: Cryo-EM structure of a dimeric B-Raf:14-3-3 complex reveals asymmetry in the active sites of B-Raf kinases. 著者: Yasushi Kondo / Jana Ognjenović / Saikat Banerjee / Deepti Karandur / Alan Merk / Kayla Kulhanek / Kathryn Wong / Jeroen P Roose / Sriram Subramaniam / John Kuriyan / ![]() ![]() 要旨: Raf kinases are important cancer drug targets. Paradoxically, many B-Raf inhibitors induce the activation of Raf kinases. Cryo-electron microscopy structural analysis of a phosphorylated B-Raf kinase ...Raf kinases are important cancer drug targets. Paradoxically, many B-Raf inhibitors induce the activation of Raf kinases. Cryo-electron microscopy structural analysis of a phosphorylated B-Raf kinase domain dimer in complex with dimeric 14-3-3, at a resolution of ~3.9 angstroms, shows an asymmetric arrangement in which one kinase is in a canonical "active" conformation. The distal segment of the C-terminal tail of this kinase interacts with, and blocks, the active site of the cognate kinase in this asymmetric arrangement. Deletion of the C-terminal segment reduces Raf activity. The unexpected asymmetric quaternary architecture illustrates how the paradoxical activation of Raf by kinase inhibitors reflects an innate mechanism, with 14-3-3 facilitating inhibition of one kinase while maintaining activity of the other. Conformational modulation of these contacts may provide new opportunities for Raf inhibitor development. #1: ![]() タイトル: Cryo-EM structure of a dimeric B-Raf:14-3-3 complex reveals asymmetry in the active sites of B-Raf kinases 著者: Kondo, Y. / Ognjenovic, J. / Banerjee, S. / Karandur, D. / Merk, A. / Kulhanek, K. / Wong, K. / Roose, J.P. / Subramaniam, S. / Kuriyan, J. | |||||||||
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構造の表示
ムービー |
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構造ビューア | 分子: ![]() ![]() |
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ダウンロードとリンク
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PDBx/mmCIF形式 | ![]() | 194.8 KB | 表示 | ![]() |
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PDB形式 | ![]() | 150.1 KB | 表示 | ![]() |
PDBx/mmJSON形式 | ![]() | ツリー表示 | ![]() | |
その他 | ![]() |
-検証レポート
アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
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-関連構造データ
関連構造データ | ![]() 20708MC 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 | ![]() Data size: 6.2 TB Data #1: Unaligned multi-frame micrographs of B-Raf:14-3-3 complex [micrographs - multiframe] Data #2: Unaligned multi-frame micrographs of B-Raf:14-3-3 complex [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: 28108.514 Da / 分子数: 2 / 由来タイプ: 天然 由来: (天然) ![]() 参照: UniProt: A0A068JLL8 #2: タンパク質 | 分子量: 84781.922 Da / 分子数: 2 / 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 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: Ternary complex of B-Raf kinase domain dimer and 14-3-3 dimer タイプ: COMPLEX / Entity ID: all / 由来: RECOMBINANT | ||||||||||||||||
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分子量 | 実験値: NO | ||||||||||||||||
由来(天然) | 生物種: ![]() | ||||||||||||||||
由来(組換発現) | 生物種: ![]() | ||||||||||||||||
緩衝液 | pH: 8 | ||||||||||||||||
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: COPPER / グリッドのサイズ: 200 divisions/in. / グリッドのタイプ: Quantifoil R1.2/1.3 | ||||||||||||||||
急速凍結 | 装置: LEICA EM GP / 凍結剤: ETHANE / 湿度: 95 % / 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: FEI TITAN KRIOS |
電子銃 | 電子線源: ![]() |
電子レンズ | モード: BRIGHT FIELD |
撮影 | 電子線照射量: 50 e/Å2 / 検出モード: SUPER-RESOLUTION フィルム・検出器のモデル: GATAN K2 SUMMIT (4k x 4k) |
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解析
ソフトウェア | 名称: PHENIX / バージョン: 1.14_3260: / 分類: 精密化 | ||||||||||||||||||||||||
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CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
対称性 | 点対称性: C1 (非対称) | ||||||||||||||||||||||||
3次元再構成 | 解像度: 3.9 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 113313 / 対称性のタイプ: POINT | ||||||||||||||||||||||||
拘束条件 |
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