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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: 5wp6 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| タイトル | Cryo-EM structure of a human TRPM4 channel in complex with calcium and decavanadate | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
要素 | Transient receptor potential cation channel subfamily M member 4 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
キーワード | MEMBRANE PROTEIN / Ion channel | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 機能・相同性 | 機能・相同性情報positive regulation of atrial cardiac muscle cell action potential / positive regulation of regulation of vascular associated smooth muscle cell membrane depolarization / sodium channel complex / regulation of T cell cytokine production / membrane depolarization during AV node cell action potential / membrane depolarization during bundle of His cell action potential / membrane depolarization during Purkinje myocyte cell action potential / metal ion transport / negative regulation of bone mineralization / regulation of ventricular cardiac muscle cell action potential ...positive regulation of atrial cardiac muscle cell action potential / positive regulation of regulation of vascular associated smooth muscle cell membrane depolarization / sodium channel complex / regulation of T cell cytokine production / membrane depolarization during AV node cell action potential / membrane depolarization during bundle of His cell action potential / membrane depolarization during Purkinje myocyte cell action potential / metal ion transport / negative regulation of bone mineralization / regulation of ventricular cardiac muscle cell action potential / calcium-activated cation channel activity / sodium ion import across plasma membrane / : / dendritic cell chemotaxis / TRP channels / sodium channel activity / positive regulation of vasoconstriction / cellular response to ATP / monoatomic cation transmembrane transport / regulation of heart rate by cardiac conduction / protein sumoylation / negative regulation of osteoblast differentiation / positive regulation of fat cell differentiation / positive regulation of insulin secretion involved in cellular response to glucose stimulus / positive regulation of heart rate / positive regulation of adipose tissue development / calcium-mediated signaling / calcium ion transmembrane transport / calcium channel activity / Sensory perception of sweet, bitter, and umami (glutamate) taste / positive regulation of canonical Wnt signaling pathway / positive regulation of cytosolic calcium ion concentration / protein homotetramerization / adaptive immune response / calmodulin binding / neuronal cell body / positive regulation of cell population proliferation / calcium ion binding / endoplasmic reticulum / Golgi apparatus / nucleoplasm / ATP binding / identical protein binding / membrane / plasma membrane 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: 3.8 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
データ登録者 | Winkler, P.A. / Huang, Y. / Sun, W. / Du, J. / Lu, W. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
引用 | ジャーナル: Nature / 年: 2017タイトル: Electron cryo-microscopy structure of a human TRPM4 channel. 著者: Paige A Winkler / Yihe Huang / Weinan Sun / Juan Du / Wei Lü / ![]() 要旨: Ca-activated, non-selective (CAN) ion channels sense increases of the intracellular Ca concentration, producing a flux of Na and/or K ions that depolarizes the cell, thus modulating cellular Ca entry. ...Ca-activated, non-selective (CAN) ion channels sense increases of the intracellular Ca concentration, producing a flux of Na and/or K ions that depolarizes the cell, thus modulating cellular Ca entry. CAN channels are involved in cellular responses such as neuronal bursting activity and cardiac rhythm. Here we report the electron cryo-microscopy structure of the most widespread CAN channel, human TRPM4, bound to the agonist Ca and the modulator decavanadate. Four cytosolic C-terminal domains form an umbrella-like structure with a coiled-coil domain for the 'pole' and four helical 'ribs' spanning the N-terminal TRPM homology regions (MHRs), thus holding four subunits in a crown-like architecture. We observed two decavanadate-binding sites, one in the C-terminal domain and another in the intersubunit MHR interface. A glutamine in the selectivity filter may be an important determinant of monovalent selectivity. Our structure provides new insights into the function and pharmacology of both the CAN and the TRPM families. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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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: 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 | 5wp6.cif.gz | 667.8 KB | 表示 | PDBx/mmCIF形式 |
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| PDB形式 | pdb5wp6.ent.gz | 531.7 KB | 表示 | PDB形式 |
| PDBx/mmJSON形式 | 5wp6.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 | 5wp6_validation.pdf.gz | 980.9 KB | 表示 | wwPDB検証レポート |
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| 文書・詳細版 | 5wp6_full_validation.pdf.gz | 1006.3 KB | 表示 | |
| XML形式データ | 5wp6_validation.xml.gz | 93.5 KB | 表示 | |
| CIF形式データ | 5wp6_validation.cif.gz | 147.3 KB | 表示 | |
| アーカイブディレクトリ | https://data.pdbj.org/pub/pdb/validation_reports/wp/5wp6 ftp://data.pdbj.org/pub/pdb/validation_reports/wp/5wp6 | HTTPS FTP |
-関連構造データ
| 関連構造データ | ![]() 8871MC ![]() 8872 ![]() 8875 ![]() 8876 ![]() 8877 ![]() 8878 ![]() 8879 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 |
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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: 134456.484 Da / 分子数: 4 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 遺伝子: TRPM4, LTRPC4 / 発現宿主: Homo sapiens (ヒト) / 参照: UniProt: Q8TD43#2: 化合物 | ChemComp-DVT / Has protein modification | N | |
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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: TRPM4 / タイプ: COMPLEX / Entity ID: #1 / 由来: RECOMBINANT |
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| 分子量 | 値: 0.54 MDa / 実験値: NO |
| 由来(天然) | 生物種: Homo sapiens (ヒト) |
| 由来(組換発現) | 生物種: Homo sapiens (ヒト) |
| 緩衝液 | pH: 8 |
| 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: FEI TITAN KRIOS |
| 電子銃 | 電子線源: FIELD EMISSION GUN / 加速電圧: 300 kV / 照射モード: FLOOD BEAM |
| 電子レンズ | モード: BRIGHT FIELD |
| 撮影 | 電子線照射量: 54 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: 1.12rc1_2815: / 分類: 精密化 | ||||||||||||||||||||||||
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| EMソフトウェア | 名称: PHENIX / カテゴリ: モデル精密化 | ||||||||||||||||||||||||
| CTF補正 | タイプ: NONE | ||||||||||||||||||||||||
| 3次元再構成 | 解像度: 3.8 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 121906 / 対称性のタイプ: POINT | ||||||||||||||||||||||||
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万見について




Homo sapiens (ヒト)
引用
UCSF Chimera









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