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基本情報
登録情報 | データベース: PDB / ID: 3j4q | ||||||
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タイトル | Pseudo-atomic model of the AKAP18-PKA complex in a bent conformation derived from electron microscopy | ||||||
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![]() | TRANSFERASE / A-kinase anchoring protein / cAMP-Dependent Kinase / RII / PKA regulatory subunit II / phosphorylation / anchoring / intrinsic disorder | ||||||
機能・相同性 | ![]() cAMP-dependent protein kinase regulator activity / PKA activation in glucagon signalling / CREB1 phosphorylation through the activation of Adenylate Cyclase / HDL assembly / DARPP-32 events / Rap1 signalling / PKA activation / Regulation of insulin secretion / Vasopressin regulates renal water homeostasis via Aquaporins / GPER1 signaling ...cAMP-dependent protein kinase regulator activity / PKA activation in glucagon signalling / CREB1 phosphorylation through the activation of Adenylate Cyclase / HDL assembly / DARPP-32 events / Rap1 signalling / PKA activation / Regulation of insulin secretion / Vasopressin regulates renal water homeostasis via Aquaporins / GPER1 signaling / Hedgehog 'off' state / Glucagon-like Peptide-1 (GLP1) regulates insulin secretion / Loss of Nlp from mitotic centrosomes / Recruitment of mitotic centrosome proteins and complexes / Loss of proteins required for interphase microtubule organization from the centrosome / exocytic vesicle / MAPK6/MAPK4 signaling / Recruitment of NuMA to mitotic centrosomes / Anchoring of the basal body to the plasma membrane / GLI3 is processed to GLI3R by the proteasome / AURKA Activation by TPX2 / Factors involved in megakaryocyte development and platelet production / regulation of membrane repolarization / Interleukin-3, Interleukin-5 and GM-CSF signaling / CD209 (DC-SIGN) signaling / High laminar flow shear stress activates signaling by PIEZO1 and PECAM1:CDH5:KDR in endothelial cells / Regulation of PLK1 Activity at G2/M Transition / RET signaling / nucleotide-activated protein kinase complex / positive regulation of potassium ion transmembrane transport / Mitochondrial protein degradation / VEGFA-VEGFR2 Pathway / Ion homeostasis / negative regulation of cAMP/PKA signal transduction / cAMP-dependent protein kinase inhibitor activity / cAMP-dependent protein kinase / regulation of protein processing / cAMP-dependent protein kinase activity / protein localization to lipid droplet / regulation of bicellular tight junction assembly / cAMP-dependent protein kinase complex / cellular response to parathyroid hormone stimulus / protein kinase A binding / regulation of osteoblast differentiation / cellular response to cold / AMP binding / sperm capacitation / negative regulation of glycolytic process through fructose-6-phosphate / ciliary base / protein kinase A regulatory subunit binding / protein kinase A catalytic subunit binding / intracellular potassium ion homeostasis / mesoderm formation / action potential / cAMP/PKA signal transduction / plasma membrane raft / lateral plasma membrane / axoneme / regulation of proteasomal protein catabolic process / sperm flagellum / postsynaptic modulation of chemical synaptic transmission / cAMP binding / sperm midpiece / negative regulation of TORC1 signaling / T-tubule / positive regulation of gluconeogenesis / protein serine/threonine/tyrosine kinase activity / cellular response to glucagon stimulus / acrosomal vesicle / positive regulation of phagocytosis / protein export from nucleus / hippocampal mossy fiber to CA3 synapse / sarcoplasmic reticulum / cellular response to cAMP / positive regulation of protein export from nucleus / negative regulation of smoothened signaling pathway / neural tube closure / neuromuscular junction / cellular response to glucose stimulus / positive regulation of cholesterol biosynthetic process / adenylate cyclase-inhibiting G protein-coupled receptor signaling pathway / modulation of chemical synaptic transmission / positive regulation of insulin secretion / peptidyl-serine phosphorylation / adenylate cyclase-activating G protein-coupled receptor signaling pathway / mRNA processing / kinase activity / manganese ion binding / cellular response to heat / postsynapse / protein kinase activity / regulation of cell cycle / nuclear speck / apical plasma membrane / protein domain specific binding / protein serine kinase activity / protein serine/threonine kinase activity / ubiquitin protein ligase binding / synapse / centrosome 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 / ネガティブ染色法 / 解像度: 35 Å | ||||||
![]() | Reichow, S.L. / Gonen, T. | ||||||
![]() | ![]() タイトル: Intrinsic disorder within an AKAP-protein kinase A complex guides local substrate phosphorylation. 著者: F Donelson Smith / Steve L Reichow / Jessica L Esseltine / Dan Shi / Lorene K Langeberg / John D Scott / Tamir Gonen / ![]() 要旨: Anchoring proteins sequester kinases with their substrates to locally disseminate intracellular signals and avert indiscriminate transmission of these responses throughout the cell. Mechanistic ...Anchoring proteins sequester kinases with their substrates to locally disseminate intracellular signals and avert indiscriminate transmission of these responses throughout the cell. Mechanistic understanding of this process is hampered by limited structural information on these macromolecular complexes. A-kinase anchoring proteins (AKAPs) spatially constrain phosphorylation by cAMP-dependent protein kinases (PKA). Electron microscopy and three-dimensional reconstructions of type-II PKA-AKAP18γ complexes reveal hetero-pentameric assemblies that adopt a range of flexible tripartite configurations. Intrinsically disordered regions within each PKA regulatory subunit impart the molecular plasticity that affords an ∼16 nanometer radius of motion to the associated catalytic subunits. Manipulating flexibility within the PKA holoenzyme augmented basal and cAMP responsive phosphorylation of AKAP-associated substrates. Cell-based analyses suggest that the catalytic subunit remains within type-II PKA-AKAP18γ complexes upon cAMP elevation. We propose that the dynamic movement of kinase sub-structures, in concert with the static AKAP-regulatory subunit interface, generates a solid-state signaling microenvironment for substrate phosphorylation. DOI: http://dx.doi.org/10.7554/eLife.01319.001. | ||||||
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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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-検証レポート
文書・要旨 | ![]() | 729.6 KB | 表示 | ![]() |
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-関連構造データ
関連構造データ | ![]() 5755MC ![]() 5756C ![]() 3j4rC 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 ![]() |
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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: 39478.773 Da / 分子数: 1 / 断片: SEE REMARK 999 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() 発現宿主: ![]() ![]() 株 (発現宿主): Sf-9 / 参照: UniProt: Q6JP77*PLUS | ||||
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#2: タンパク質 | 分子量: 45644.266 Da / 分子数: 2 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() ![]() ![]() #3: タンパク質 | 分子量: 40628.555 Da / 分子数: 2 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() ![]() ![]() 配列の詳細 | AKAP18 IN THIS ENTRY IS FROM HOMO SAPIENS, BUT THE MODELED SEQUENCE IS FROM RATTUS NORVEGICUS | |
-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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緩衝液 | 名称: 25 mM HEPES, pH 7.4, 200 mM NaCl, 0.5 mM EDTA, 1 mM DTT pH: 7.4 詳細: 25 mM HEPES, pH 7.4, 200 mM NaCl, 0.5 mM EDTA, 1 mM DTT | |||||||||||||||||||||||||
試料 | 濃度: 0.005 mg/ml / 包埋: NO / シャドウイング: NO / 染色: YES / 凍結: NO / 詳細: Stain 0.75% (w/v) uranyl formate | |||||||||||||||||||||||||
染色 | タイプ: NEGATIVE / 染色剤: Uranyl Formate | |||||||||||||||||||||||||
試料支持 | 詳細: 200 mesh copper grid with thin carbon support |
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電子顕微鏡撮影
顕微鏡 | モデル: FEI TECNAI 12 / 日付: 2012年5月1日 |
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電子銃 | 電子線源: LAB6 / 加速電圧: 120 kV / 照射モード: FLOOD BEAM |
電子レンズ | モード: BRIGHT FIELD / 倍率(公称値): 52000 X / 最大 デフォーカス(公称値): 2500 nm / 最小 デフォーカス(公称値): 1000 nm / Cs: 6.3 mm 非点収差: Objective lens astigmatism was corrected at 100,000 times magnification カメラ長: 0 mm |
試料ホルダ | 試料ホルダーモデル: OTHER / 資料ホルダタイプ: Single-Tilt / 温度: 298 K / 傾斜角・最大: 50 ° / 傾斜角・最小: 0 ° |
撮影 | 電子線照射量: 15 e/Å2 / フィルム・検出器のモデル: GENERIC GATAN |
画像スキャン | デジタル画像の数: 1335 |
放射 | プロトコル: SINGLE WAVELENGTH / 単色(M)・ラウエ(L): M / 散乱光タイプ: x-ray |
放射波長 | 相対比: 1 |
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解析
EMソフトウェア |
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CTF補正 | 詳細: Each Micrograph | ||||||||||||||||||||||||||||||||||||
対称性 | 点対称性: C1 (非対称) | ||||||||||||||||||||||||||||||||||||
3次元再構成 | 手法: Angular Reconstitution and Refinement / 解像度: 35 Å / 解像度の算出法: FSC 0.5 CUT-OFF / 粒子像の数: 1000 / ピクセルサイズ(公称値): 4.2 Å / ピクセルサイズ(実測値): 4.2 Å 詳細: (Single particle details: Images were processed in IMAGIC and ISAC. 3D reconstruction was done in IMAGIC and FREALIGN.) (Single particle--Applied symmetry: C1) 対称性のタイプ: POINT | ||||||||||||||||||||||||||||||||||||
原子モデル構築 |
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原子モデル構築 | Source name: PDB / タイプ: experimental model
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精密化ステップ | サイクル: LAST
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