+データを開く
-基本情報
登録情報 | データベース: EMDB / ID: EMD-30949 | |||||||||
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タイトル | Cryo EM structure of a Na+-bound Na+,K+-ATPase in the E1 state with ATP-gamma-S | |||||||||
マップデータ | ||||||||||
試料 |
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キーワード | Na+ / K+-ATPase / MEMBRANE PROTEIN | |||||||||
機能・相同性 | 機能・相同性情報 negative regulation of glucocorticoid biosynthetic process / protein transport into plasma membrane raft / positive regulation of potassium ion transmembrane transporter activity / positive regulation of P-type sodium:potassium-exchanging transporter activity / Na+/K+-exchanging ATPase / positive regulation of striated muscle contraction / positive regulation of sodium ion export across plasma membrane / positive regulation of potassium ion import across plasma membrane / positive regulation of heart contraction / response to glycoside ...negative regulation of glucocorticoid biosynthetic process / protein transport into plasma membrane raft / positive regulation of potassium ion transmembrane transporter activity / positive regulation of P-type sodium:potassium-exchanging transporter activity / Na+/K+-exchanging ATPase / positive regulation of striated muscle contraction / positive regulation of sodium ion export across plasma membrane / positive regulation of potassium ion import across plasma membrane / positive regulation of heart contraction / response to glycoside / membrane repolarization during cardiac muscle cell action potential / photoreceptor inner segment membrane / P-type sodium:potassium-exchanging transporter activity / steroid hormone binding / sodium ion binding / sodium:potassium-exchanging ATPase complex / membrane repolarization / negative regulation of heart contraction / establishment or maintenance of transmembrane electrochemical gradient / regulation of the force of heart contraction / osmosensory signaling pathway / sodium ion export across plasma membrane / cell communication by electrical coupling involved in cardiac conduction / intracellular potassium ion homeostasis / regulation of calcium ion transmembrane transport / intracellular sodium ion homeostasis / cardiac muscle cell action potential involved in contraction / positive regulation of ATP-dependent activity / regulation of cardiac muscle contraction by calcium ion signaling / relaxation of cardiac muscle / Basigin interactions / cellular response to steroid hormone stimulus / organelle membrane / potassium ion import across plasma membrane / phosphatase activity / monoatomic cation transmembrane transport / potassium ion binding / Ion transport by P-type ATPases / ATPase activator activity / intercalated disc / lateral plasma membrane / sperm flagellum / sodium channel regulator activity / sodium ion transmembrane transport / cardiac muscle contraction / ATP metabolic process / regulation of sodium ion transport / Ion homeostasis / T-tubule / proton transmembrane transport / protein localization to plasma membrane / sarcolemma / transmembrane transport / regulation of blood pressure / intracellular calcium ion homeostasis / melanosome / extracellular vesicle / MHC class II protein complex binding / protein-folding chaperone binding / ATPase binding / protein-macromolecule adaptor activity / regulation of gene expression / basolateral plasma membrane / transmembrane transporter binding / Potential therapeutics for SARS / postsynaptic density / protein stabilization / cell adhesion / response to xenobiotic stimulus / protein heterodimerization activity / membrane raft / apical plasma membrane / axon / innate immune response / protein kinase binding / Golgi apparatus / endoplasmic reticulum / ATP hydrolysis activity / protein-containing complex / extracellular exosome / ATP binding / membrane / plasma membrane 類似検索 - 分子機能 | |||||||||
生物種 | Homo sapiens (ヒト) | |||||||||
手法 | 単粒子再構成法 / クライオ電子顕微鏡法 / 解像度: 2.9 Å | |||||||||
データ登録者 | Guo YY / Zhang YY / Yan RH / Huang BD / Ye FF / Wu LS / Chi XM / Zhou Q | |||||||||
資金援助 | 中国, 2件
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引用 | ジャーナル: Nat Commun / 年: 2022 タイトル: Cryo-EM structures of recombinant human sodium-potassium pump determined in three different states. 著者: Yingying Guo / Yuanyuan Zhang / Renhong Yan / Bangdong Huang / Fangfei Ye / Liushu Wu / Ximin Chi / Yi Shi / Qiang Zhou / 要旨: Sodium-Potassium Pump (Na/K-ATPase, NKA) is an ion pump that generates an electrochemical gradient of sodium and potassium ions across the plasma membrane by hydrolyzing ATP. During each Post-Albers ...Sodium-Potassium Pump (Na/K-ATPase, NKA) is an ion pump that generates an electrochemical gradient of sodium and potassium ions across the plasma membrane by hydrolyzing ATP. During each Post-Albers cycle, NKA exchanges three cytoplasmic sodium ions for two extracellular potassium ions through alternating changes between the E1 and E2 states. Hitherto, several steps remained unknown during the complete working cycle of NKA. Here, we report cryo-electron microscopy (cryo-EM) structures of recombinant human NKA (hNKA) in three distinct states at 2.7-3.2 Å resolution, representing the E1·3Na and E1·3Na·ATP states with cytosolic gates open and the basic E2·[2K] state, respectively. This work provides the insights into the cytoplasmic Na entrance pathway and the mechanism of cytoplasmic gate closure coupled with ATP hydrolysis, filling crucial gaps in the structural elucidation of the Post-Albers cycle of NKA. | |||||||||
履歴 |
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-構造の表示
添付画像 |
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-ダウンロードとリンク
-EMDBアーカイブ
マップデータ | emd_30949.map.gz | 28.4 MB | EMDBマップデータ形式 | |
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ヘッダ (付随情報) | emd-30949-v30.xml emd-30949.xml | 15.9 KB 15.9 KB | 表示 表示 | EMDBヘッダ |
画像 | emd_30949.png | 39.6 KB | ||
Filedesc metadata | emd-30949.cif.gz | 6.6 KB | ||
アーカイブディレクトリ | http://ftp.pdbj.org/pub/emdb/structures/EMD-30949 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-30949 | HTTPS FTP |
-検証レポート
文書・要旨 | emd_30949_validation.pdf.gz | 549 KB | 表示 | EMDB検証レポート |
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文書・詳細版 | emd_30949_full_validation.pdf.gz | 548.5 KB | 表示 | |
XML形式データ | emd_30949_validation.xml.gz | 5.7 KB | 表示 | |
CIF形式データ | emd_30949_validation.cif.gz | 6.5 KB | 表示 | |
アーカイブディレクトリ | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-30949 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-30949 | HTTPS FTP |
-関連構造データ
-リンク
EMDBのページ | EMDB (EBI/PDBe) / EMDataResource |
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「今月の分子」の関連する項目 |
-マップ
ファイル | ダウンロード / ファイル: emd_30949.map.gz / 形式: CCP4 / 大きさ: 30.5 MB / タイプ: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||
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投影像・断面図 | 画像のコントロール
画像は Spider により作成 | ||||||||||||||||||||||||||||||||||||
ボクセルのサイズ | X=Y=Z: 1.087 Å | ||||||||||||||||||||||||||||||||||||
密度 |
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対称性 | 空間群: 1 | ||||||||||||||||||||||||||||||||||||
詳細 | EMDB XML:
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-添付データ
-試料の構成要素
+全体 : cryo EM structure of a Na+-bound Na+,K+-ATPase in the E1 state wi...
+超分子 #1: cryo EM structure of a Na+-bound Na+,K+-ATPase in the E1 state wi...
+分子 #1: Sodium/potassium-transporting ATPase subunit alpha-1
+分子 #2: Sodium/potassium-transporting ATPase subunit beta-1
+分子 #3: Sodium/potassium-transporting ATPase subunit gamma
+分子 #5: SODIUM ION
+分子 #6: MAGNESIUM ION
+分子 #7: PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER
+分子 #8: CHOLESTEROL HEMISUCCINATE
+分子 #9: 1,2-DIACYL-SN-GLYCERO-3-PHOSPHOCHOLINE
+分子 #10: 2-acetamido-2-deoxy-beta-D-glucopyranose
+分子 #11: water
-実験情報
-構造解析
手法 | クライオ電子顕微鏡法 |
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解析 | 単粒子再構成法 |
試料の集合状態 | particle |
-試料調製
緩衝液 | pH: 8 |
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凍結 | 凍結剤: ETHANE |
-電子顕微鏡法
顕微鏡 | FEI TITAN KRIOS |
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撮影 | フィルム・検出器のモデル: GATAN K3 BIOQUANTUM (6k x 4k) 平均電子線量: 50.0 e/Å2 |
電子線 | 加速電圧: 300 kV / 電子線源: FIELD EMISSION GUN |
電子光学系 | 照射モード: FLOOD BEAM / 撮影モード: BRIGHT FIELD / 最大 デフォーカス(公称値): 2.2 µm / 最小 デフォーカス(公称値): 1.2 µm |
試料ステージ | 試料ホルダーモデル: FEI TITAN KRIOS AUTOGRID HOLDER ホルダー冷却材: NITROGEN |
実験機器 | モデル: Titan Krios / 画像提供: FEI Company |
-画像解析
初期モデル | モデルのタイプ: OTHER |
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最終 再構成 | 解像度のタイプ: BY AUTHOR / 解像度: 2.9 Å / 解像度の算出法: FSC 0.143 CUT-OFF / ソフトウェア - 名称: RELION (ver. 3.0.6) / 使用した粒子像数: 51044 |
初期 角度割当 | タイプ: ANGULAR RECONSTITUTION |
最終 角度割当 | タイプ: MAXIMUM LIKELIHOOD |