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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: 8v81 | |||||||||||||||||||||||||||||||||||||||
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| タイトル | Phosphorylated, ATP-bound, inhibitor 172-bound E1371Q human cystic fibrosis transmembrane conductance regulator | |||||||||||||||||||||||||||||||||||||||
要素 | Cystic fibrosis transmembrane conductance regulator | |||||||||||||||||||||||||||||||||||||||
キーワード | MEMBRANE PROTEIN/INHIBITOR / cystic fibrosis / chloride channel / hydrolysis-deficient mutant / MEMBRANE PROTEIN-INHIBITOR complex | |||||||||||||||||||||||||||||||||||||||
| 機能・相同性 | 機能・相同性情報positive regulation of voltage-gated chloride channel activity / : / Sec61 translocon complex binding / channel-conductance-controlling ATPase / intracellularly ATP-gated chloride channel activity / positive regulation of enamel mineralization / transepithelial water transport / RHO GTPases regulate CFTR trafficking / amelogenesis / intracellular pH elevation ...positive regulation of voltage-gated chloride channel activity / : / Sec61 translocon complex binding / channel-conductance-controlling ATPase / intracellularly ATP-gated chloride channel activity / positive regulation of enamel mineralization / transepithelial water transport / RHO GTPases regulate CFTR trafficking / amelogenesis / intracellular pH elevation / chloride channel inhibitor activity / : / Golgi-associated vesicle membrane / multicellular organismal-level water homeostasis / cholesterol transport / bicarbonate transport / bicarbonate transmembrane transporter activity / vesicle docking involved in exocytosis / chloride channel regulator activity / membrane hyperpolarization / chloride transmembrane transporter activity / cholesterol biosynthetic process / sperm capacitation / RHOQ GTPase cycle / chloride channel activity / positive regulation of exocytosis / ATPase-coupled transmembrane transporter activity / positive regulation of insulin secretion involved in cellular response to glucose stimulus / chloride channel complex / ABC-type transporter activity / 14-3-3 protein binding / cellular response to forskolin / chloride transmembrane transport / response to endoplasmic reticulum stress / cellular response to cAMP / PDZ domain binding / establishment of localization in cell / clathrin-coated endocytic vesicle membrane / Defective CFTR causes cystic fibrosis / Late endosomal microautophagy / recycling endosome / ABC-family proteins mediated transport / transmembrane transport / Chaperone Mediated Autophagy / recycling endosome membrane / Aggrephagy / Cargo recognition for clathrin-mediated endocytosis / Clathrin-mediated endocytosis / protein-folding chaperone binding / early endosome membrane / early endosome / endosome membrane / Ub-specific processing proteases / apical plasma membrane / lysosomal membrane / endoplasmic reticulum membrane / enzyme binding / cell surface / protein-containing complex / ATP hydrolysis activity / ATP binding / nucleus / membrane / plasma membrane / cytosol / cytoplasm 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: 3.6 Å | |||||||||||||||||||||||||||||||||||||||
データ登録者 | Gao, X. / Hwang, T. | |||||||||||||||||||||||||||||||||||||||
| 資金援助 | 米国, 2件
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引用 | ジャーナル: Nat Commun / 年: 2024タイトル: Allosteric inhibition of CFTR gating by CFTRinh-172 binding in the pore. 著者: Xiaolong Gao / Han-I Yeh / Zhengrong Yang / Chen Fan / Fan Jiang / Rebecca J Howard / Erik Lindahl / John C Kappes / Tzyh-Chang Hwang / ![]() 要旨: Loss-of-function mutations of the CFTR gene cause the life-shortening genetic disease cystic fibrosis (CF), whereas overactivity of CFTR may lead to secretory diarrhea and polycystic kidney disease. ...Loss-of-function mutations of the CFTR gene cause the life-shortening genetic disease cystic fibrosis (CF), whereas overactivity of CFTR may lead to secretory diarrhea and polycystic kidney disease. While effective drugs targeting the CFTR protein have been developed for the treatment of CF, little progress has been made for diseases caused by hyper-activated CFTR. Here, we solve the cryo-EM structure of CFTR in complex with CFTRinh-172 (Inh-172), a CFTR gating inhibitor with promising potency and efficacy. We find that Inh-172 binds inside the pore of CFTR, interacting with amino acid residues from transmembrane segments (TMs) 1, 6, 8, 9, and 12 through mostly hydrophobic interactions and a salt bridge. Substitution of these residues lowers the apparent affinity of Inh-172. The inhibitor-bound structure reveals re-orientations of the extracellular segment of TMs 1, 8, and 12, supporting an allosteric modulation mechanism involving post-binding conformational changes. This allosteric inhibitory mechanism readily explains our observations that pig CFTR, which preserves all the amino acid residues involved in Inh-172 binding, exhibits a much-reduced sensitivity to Inh-172 and that the apparent affinity of Inh-172 is altered by the CF drug ivacaftor (i.e., VX-770) which enhances CFTR's activity through binding to a site also comprising TM8. | |||||||||||||||||||||||||||||||||||||||
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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 | 8v81.cif.gz | 226.8 KB | 表示 | PDBx/mmCIF形式 |
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| PDB形式 | pdb8v81.ent.gz | 170.6 KB | 表示 | PDB形式 |
| PDBx/mmJSON形式 | 8v81.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
| 文書・要旨 | 8v81_validation.pdf.gz | 1.3 MB | 表示 | wwPDB検証レポート |
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| 文書・詳細版 | 8v81_full_validation.pdf.gz | 1.3 MB | 表示 | |
| XML形式データ | 8v81_validation.xml.gz | 44.5 KB | 表示 | |
| CIF形式データ | 8v81_validation.cif.gz | 67 KB | 表示 | |
| アーカイブディレクトリ | https://data.pdbj.org/pub/pdb/validation_reports/v8/8v81 ftp://data.pdbj.org/pub/pdb/validation_reports/v8/8v81 | HTTPS FTP |
-関連構造データ
| 関連構造データ | ![]() 43014MC ![]() 8v7zC C: 同じ文献を引用 ( M: このデータのモデリングに利用したマップデータ |
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| 類似構造データ | 類似検索 - 機能・相同性 F&H 検索 |
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リンク
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集合体
| 登録構造単位 | ![]()
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| 1 |
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要素
-タンパク質 , 1種, 1分子 A
| #1: タンパク質 | 分子量: 163494.078 Da / 分子数: 1 / 変異: E1371Q / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 遺伝子: CFTR, ABCC7発現宿主: ![]() 参照: UniProt: P13569, channel-conductance-controlling ATPase |
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-非ポリマー , 5種, 11分子 






| #2: 化合物 | | #3: 化合物 | #4: 化合物 | ChemComp-POV / ( #5: 化合物 | ChemComp-CLR / | #6: 化合物 | ChemComp-WG5 / | 分子量: 409.402 Da / 分子数: 1 / 由来タイプ: 合成 / 式: C18H10F3NO3S2 / タイプ: SUBJECT OF INVESTIGATION |
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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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| 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
| 構成要素 | 名称: E1371Q-CFTR / タイプ: COMPLEX / Entity ID: #1 / 由来: RECOMBINANT |
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| 由来(天然) | 生物種: Homo sapiens (ヒト) |
| 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: 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: OTHER |
| 電子レンズ | モード: OTHER / 最大 デフォーカス(公称値): 1800 nm / 最小 デフォーカス(公称値): 1000 nm |
| 撮影 | 電子線照射量: 1.31475 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: NONE | ||||||||||||||||||||||||
| 3次元再構成 | 解像度: 3.6 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 140837 / 対称性のタイプ: POINT | ||||||||||||||||||||||||
| 拘束条件 |
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コントローラー
万見について




Homo sapiens (ヒト)
米国, 2件
引用




PDBj











FIELD EMISSION GUN