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基本情報
登録情報 | データベース: PDB / ID: 9dw4 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
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タイトル | Dephosphorylated CFTR in 1:1 complex with PKA-C (site II) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
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![]() | HYDROLASE / CFTR / PKA / complex | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
機能・相同性 | ![]() positive regulation of voltage-gated chloride channel activity / positive regulation of cyclic nucleotide-gated ion channel activity / Sec61 translocon complex binding / channel-conductance-controlling ATPase / intracellularly ATP-gated chloride channel activity / CD209 (DC-SIGN) signaling / HDL assembly / Regulation of insulin secretion / positive regulation of enamel mineralization / transepithelial water transport ...positive regulation of voltage-gated chloride channel activity / positive regulation of cyclic nucleotide-gated ion channel activity / Sec61 translocon complex binding / channel-conductance-controlling ATPase / intracellularly ATP-gated chloride channel activity / CD209 (DC-SIGN) signaling / HDL assembly / Regulation of insulin secretion / positive regulation of enamel mineralization / transepithelial water transport / Rap1 signalling / RHO GTPases regulate CFTR trafficking / Ion homeostasis / PKA activation in glucagon signalling / DARPP-32 events / CREB1 phosphorylation through the activation of Adenylate Cyclase / GPER1 signaling / Loss of Nlp from mitotic centrosomes / Recruitment of mitotic centrosome proteins and complexes / Loss of proteins required for interphase microtubule organization from the centrosome / Anchoring of the basal body to the plasma membrane / AURKA Activation by TPX2 / Factors involved in megakaryocyte development and platelet production / RET signaling / intracellular pH elevation / amelogenesis / Interleukin-3, Interleukin-5 and GM-CSF signaling / Recruitment of NuMA to mitotic centrosomes / chloride channel inhibitor activity / VEGFA-VEGFR2 Pathway / PKA activation / ATPase-coupled inorganic anion transmembrane transporter activity / MAPK6/MAPK4 signaling / GLI3 is processed to GLI3R by the proteasome / Regulation of PLK1 Activity at G2/M Transition / Hedgehog 'off' state / Golgi-associated vesicle membrane / multicellular organismal-level water homeostasis / cholesterol transport / bicarbonate transport / bicarbonate transmembrane transporter activity / membrane hyperpolarization / vesicle docking involved in exocytosis / chloride channel regulator activity / chloride transmembrane transporter activity / cAMP-dependent protein kinase / regulation of protein processing / cAMP-dependent protein kinase activity / protein localization to lipid droplet / cAMP-dependent protein kinase complex / regulation of bicellular tight junction assembly / cellular response to parathyroid hormone stimulus / cellular response to cold / Glucagon-like Peptide-1 (GLP1) regulates insulin secretion / regulation of osteoblast differentiation / sperm capacitation / Mitochondrial protein degradation / High laminar flow shear stress activates signaling by PIEZO1 and PECAM1:CDH5:KDR in endothelial cells / Vasopressin regulates renal water homeostasis via Aquaporins / cholesterol biosynthetic process / ciliary base / negative regulation of glycolytic process through fructose-6-phosphate / protein kinase A regulatory subunit binding / chloride channel activity / RHOQ GTPase cycle / positive regulation of exocytosis / positive regulation of insulin secretion involved in cellular response to glucose stimulus / mesoderm formation / sperm flagellum / plasma membrane raft / axoneme / ATPase-coupled transmembrane transporter activity / chloride channel complex / ABC-type transporter activity / postsynaptic modulation of chemical synaptic transmission / negative regulation of TORC1 signaling / cellular response to cAMP / 14-3-3 protein binding / regulation of proteasomal protein catabolic process / positive regulation of gluconeogenesis / cellular response to forskolin / protein serine/threonine/tyrosine kinase activity / cellular response to glucagon stimulus / chloride transmembrane transport / response to endoplasmic reticulum stress / protein export from nucleus / acrosomal vesicle / positive regulation of protein export from nucleus / PDZ domain binding / negative regulation of smoothened signaling pathway / isomerase activity / establishment of localization in cell / neural tube closure / positive regulation of cholesterol biosynthetic process / Defective CFTR causes cystic fibrosis / clathrin-coated endocytic vesicle membrane / cellular response to glucose stimulus / Late endosomal microautophagy / adenylate cyclase-inhibiting G protein-coupled receptor signaling pathway / neuromuscular junction 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: 9 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
![]() | Fiedorczuk, K. / Chen, J. / Csanady, L. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
資金援助 | ![]()
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![]() | ![]() タイトル: The structures of protein kinase A in complex with CFTR: Mechanisms of phosphorylation and noncatalytic activation. 著者: Karol Fiedorczuk / Iordan Iordanov / Csaba Mihályi / Andras Szollosi / László Csanády / Jue Chen / ![]() ![]() 要旨: Protein kinase A (PKA) is a key regulator of cellular functions by selectively phosphorylating numerous substrates, including ion channels, enzymes, and transcription factors. It has long served as a ...Protein kinase A (PKA) is a key regulator of cellular functions by selectively phosphorylating numerous substrates, including ion channels, enzymes, and transcription factors. It has long served as a model system for understanding the eukaryotic kinases. Using cryoelectron microscopy, we present complex structures of the PKA catalytic subunit (PKA-C) bound to a full-length protein substrate, the cystic fibrosis transmembrane conductance regulator (CFTR)-an ion channel vital to human health. CFTR gating requires phosphorylation of its regulatory (R) domain. Unphosphorylated CFTR engages PKA-C at two locations, establishing two "catalytic stations" near to, but not directly involving, the R domain. This configuration, coupled with the conformational flexibility of the R domain, permits transient interactions of the eleven spatially separated phosphorylation sites. Furthermore, we determined two structures of the open-pore CFTR stabilized by PKA-C, providing a molecular basis to understand how PKA-C stimulates CFTR currents even in the absence of phosphorylation. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
履歴 |
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構造の表示
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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ダウンロード
PDBx/mmCIF形式 | ![]() | 227 KB | 表示 | ![]() |
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PDB形式 | ![]() | 150 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 | ![]() 47235MC ![]() 9dw5C ![]() 9dw7C ![]() 9dw8C ![]() 9dw9C 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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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: 40677.652 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) ![]() ![]() |
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#2: タンパク質 | 分子量: 168335.453 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() 参照: UniProt: P13569, channel-conductance-controlling ATPase |
#3: タンパク質・ペプチド | 分子量: 1635.006 Da / 分子数: 1 / 由来タイプ: 組換発現 / 詳細: R domain of CFTR / 由来: (組換発現) ![]() ![]() |
Has protein modification | Y |
-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: dephosphorylated CFTR in 1:1 complex with PKA-C (position II) タイプ: COMPLEX / Entity ID: all / 由来: MULTIPLE SOURCES |
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分子量 | 値: 0.21 MDa / 実験値: NO |
由来(天然) | 生物種: ![]() ![]() |
由来(組換発現) | 生物種: ![]() |
緩衝液 | pH: 7.4 |
試料 | 濃度: 5 mg/ml / 包埋: NO / シャドウイング: NO / 染色: NO / 凍結: YES |
急速凍結 | 装置: FEI VITROBOT MARK IV / 凍結剤: ETHANE / 湿度: 100 % |
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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: ![]() |
電子レンズ | モード: BRIGHT FIELD / 最大 デフォーカス(公称値): 1800 nm / 最小 デフォーカス(公称値): 800 nm |
撮影 | 電子線照射量: 52 e/Å2 / フィルム・検出器のモデル: GATAN K3 (6k x 4k) |
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解析
EMソフトウェア | 名称: PHENIX / カテゴリ: モデル精密化 |
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CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION |
3次元再構成 | 解像度: 9 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 14655 / 対称性のタイプ: POINT |