+データを開く
-基本情報
登録情報 | データベース: EMDB / ID: EMD-0942 | |||||||||
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タイトル | voltage-gated sodium channel Nav1.5 with quinidine | |||||||||
マップデータ | voltage-gated sodium channel with drug | |||||||||
試料 |
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機能・相同性 | 機能・相同性情報 voltage-gated sodium channel activity involved in AV node cell action potential / voltage-gated sodium channel activity involved in bundle of His cell action potential / voltage-gated sodium channel activity involved in SA node cell action potential / bundle of His cell action potential / AV node cell action potential / SA node cell action potential / AV node cell to bundle of His cell communication / membrane depolarization during SA node cell action potential / cardiac ventricle development / response to denervation involved in regulation of muscle adaptation ...voltage-gated sodium channel activity involved in AV node cell action potential / voltage-gated sodium channel activity involved in bundle of His cell action potential / voltage-gated sodium channel activity involved in SA node cell action potential / bundle of His cell action potential / AV node cell action potential / SA node cell action potential / AV node cell to bundle of His cell communication / membrane depolarization during SA node cell action potential / cardiac ventricle development / response to denervation involved in regulation of muscle adaptation / regulation of ventricular cardiac muscle cell membrane depolarization / regulation of atrial cardiac muscle cell membrane repolarization / membrane depolarization during atrial cardiac muscle cell action potential / membrane depolarization during action potential / voltage-gated sodium channel activity involved in Purkinje myocyte action potential / regulation of sodium ion transmembrane transport / brainstem development / membrane depolarization during AV node cell action potential / voltage-gated sodium channel activity involved in cardiac muscle cell action potential / membrane depolarization during bundle of His cell action potential / positive regulation of action potential / atrial cardiac muscle cell action potential / membrane depolarization during Purkinje myocyte cell action potential / telencephalon development / cardiac conduction system development / regulation of atrial cardiac muscle cell membrane depolarization / voltage-gated sodium channel complex / membrane depolarization during cardiac muscle cell action potential / positive regulation of sodium ion transport / cardiac muscle cell action potential involved in contraction / ventricular cardiac muscle cell action potential / high voltage-gated calcium channel activity / regulation of cardiac muscle cell contraction / voltage-gated sodium channel activity / regulation of ventricular cardiac muscle cell membrane repolarization / Interaction between L1 and Ankyrins / ankyrin binding / sodium ion transport / fibroblast growth factor binding / voltage-gated calcium channel complex / nitric-oxide synthase binding / Phase 0 - rapid depolarisation / odontogenesis of dentin-containing tooth / regulation of heart rate by cardiac conduction / 脱分極 / calcium ion import across plasma membrane / sodium ion transmembrane transport / 介在板 / lateral plasma membrane / cardiac muscle contraction / 横行小管 / cellular response to calcium ion / regulation of heart rate / cerebellum development / positive regulation of epithelial cell proliferation / カベオラ / 筋鞘 / Z disc / scaffold protein binding / transmembrane transporter binding / calmodulin binding / protein domain specific binding / ubiquitin protein ligase binding / 核小体 / protein kinase binding / perinuclear region of cytoplasm / enzyme binding / 細胞膜 / 小胞体 / 核質 / 生体膜 / 細胞膜 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: 3.3 Å | |||||||||
データ登録者 | Yan N / Li Z / Pan X / Huang G | |||||||||
資金援助 | 中国, 1件
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引用 | ジャーナル: Angew Chem Int Ed Engl / 年: 2021 タイトル: Structural Basis for Pore Blockade of the Human Cardiac Sodium Channel Na 1.5 by the Antiarrhythmic Drug Quinidine*. 著者: Zhangqiang Li / Xueqin Jin / Tong Wu / Gaoxingyu Huang / Kun Wu / Jianlin Lei / Xiaojing Pan / Nieng Yan / 要旨: Na 1.5, the primary voltage-gated Na (Na ) channel in heart, is a major target for class I antiarrhythmic agents. Here we present the cryo-EM structure of full-length human Na 1.5 bound to quinidine, ...Na 1.5, the primary voltage-gated Na (Na ) channel in heart, is a major target for class I antiarrhythmic agents. Here we present the cryo-EM structure of full-length human Na 1.5 bound to quinidine, a class Ia antiarrhythmic drug, at 3.3 Å resolution. Quinidine is positioned right beneath the selectivity filter in the pore domain and coordinated by residues from repeats I, III, and IV. Pore blockade by quinidine is achieved through both direct obstruction of the ion permeation path and induced rotation of an invariant Tyr residue that tightens the intracellular gate. Structural comparison with a truncated rat Na 1.5 in the presence of flecainide, a class Ic agent, reveals distinct binding poses for the two antiarrhythmics within the pore domain. Our work reported here, along with previous studies, reveals the molecular basis for the mechanism of action of class I antiarrhythmic drugs. | |||||||||
履歴 |
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-構造の表示
ムービー |
ムービービューア |
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構造ビューア | EMマップ: SurfViewMolmilJmol/JSmol |
添付画像 |
-ダウンロードとリンク
-EMDBアーカイブ
マップデータ | emd_0942.map.gz | 49.4 MB | EMDBマップデータ形式 | |
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ヘッダ (付随情報) | emd-0942-v30.xml emd-0942.xml | 12.3 KB 12.3 KB | 表示 表示 | EMDBヘッダ |
画像 | emd_0942.png | 145.4 KB | ||
アーカイブディレクトリ | http://ftp.pdbj.org/pub/emdb/structures/EMD-0942 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-0942 | 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_0942.map.gz / 形式: CCP4 / 大きさ: 52.7 MB / タイプ: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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注釈 | voltage-gated sodium channel with drug | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
ボクセルのサイズ | X=Y=Z: 1.091 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
密度 |
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対称性 | 空間群: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
詳細 | EMDB XML:
CCP4マップ ヘッダ情報:
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-添付データ
-試料の構成要素
-全体 : Voltage-gated sodium channel with drug
全体 | 名称: Voltage-gated sodium channel with drug |
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要素 |
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-超分子 #1: Voltage-gated sodium channel with drug
超分子 | 名称: Voltage-gated sodium channel with drug / タイプ: complex / ID: 1 / 親要素: 0 / 含まれる分子: #1 |
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由来(天然) | 生物種: Homo sapiens (ヒト) |
組換発現 | 生物種: Homo sapiens (ヒト) |
-分子 #1: Sodium channel protein type 5 subunit alpha
分子 | 名称: Sodium channel protein type 5 subunit alpha / タイプ: protein_or_peptide / ID: 1 / コピー数: 1 / 光学異性体: LEVO |
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由来(天然) | 生物種: Homo sapiens (ヒト) |
分子量 | 理論値: 231.743938 KDa |
組換発現 | 生物種: Homo sapiens (ヒト) |
配列 | 文字列: MASWSHPQFE KGGGARGGSG GGSWSHPQFE KGFDYKDDDD KGTMANFLLP RGTSSFRRFT RESLAAIEKR MAEKQARGST TLQESREGL PEEEAPRPQL DLQASKKLPD LYGNPPQELI GEPLEDLDPF YSTQKTFIVL NKGKTIFRFS ATNALYVLSP F HPIRRAAV ...文字列: MASWSHPQFE KGGGARGGSG GGSWSHPQFE KGFDYKDDDD KGTMANFLLP RGTSSFRRFT RESLAAIEKR MAEKQARGST TLQESREGL PEEEAPRPQL DLQASKKLPD LYGNPPQELI GEPLEDLDPF YSTQKTFIVL NKGKTIFRFS ATNALYVLSP F HPIRRAAV KILVHSLFNM LIMCTILTNC VFMAQHDPPP WTKYVEYTFT AIYTFESLVK ILARGFCLHA FTFLRDPWNW LD FSVIIMA YTTEFVDLGN VSALRTFRVL RALKTISVIS GLKTIVGALI QSVKKLADVM VLTVFCLSVF ALIGLQLFMG NLR HKCVRN FTALNGTNGS VEADGLVWES LDLYLSDPEN YLLKNGTSDV LLCGNSSDAG TCPEGYRCLK AGENPDHGYT SFDS FAWAF LALFRLMTQD CWERLYQQTL RSAGKIYMIF FMLVIFLGSF YLVNLILAVV AMAYEEQNQA TIAETEEKEK RFQEA MEML KKEHEALTIR GVDTVSRSSL EMSPLAPVNS HERRSKRRKR MSSGTEECGE DRLPKSDSED GPRAMNHLSL TRGLSR TSM KPRSSRGSIF TFRRRDLGSE ADFADDENST AGESESHHTS LLVPWPLRRT SAQGQPSPGT SAPGHALHGK KNSTVDC NG VVSLLGAGDP EATSPGSHLL RPVMLEHPPD TTTPSEEPGG PQMLTSQAPC VDGFEEPGAR QRALSAVSVL TSALEELE E SRHKCPPCWN RLAQRYLIWE CCPLWMSIKQ GVKLVVMDPF TDLTITMCIV LNTLFMALEH YNMTSEFEEM LQVGNLVFT GIFTAEMTFK IIALDPYYYF QQGWNIFDSI IVILSLMELG LSRMSNLSVL RSFRLLRVFK LAKSWPTLNT LIKIIGNSVG ALGNLTLVL AIIVFIFAVV GMQLFGKNYS ELRDSDSGLL PRWHMMDFFH AFLIIFRILC GEWIETMWDC MEVSGQSLCL L VFLLVMVI GNLVVLNLFL ALLLSSFSAD NLTAPDEDRE MNNLQLALAR IQRGLRFVKR TTWDFCCGLL RQRPQKPAAL AA QGQLPSC IATPYSPPPP ETEKVPPTRK ETRFEEGEQP GQGTPGDPEP VCVPIAVAES DTDDQEEDEE NSLGTEEESS KQQ ESQPVS GGPEAPPDSR TWSQVSATAS SEAEASASQA DWRQQWKAEP QAPGCGETPE DSCSEGSTAD MTNTAELLEQ IPDL GQDVK DPEDCFTEGC VRRCPCCAVD TTQAPGKVWW RLRKTCYHIV EHSWFETFII FMILLSSGAL AFEDIYLEER KTIKV LLEY ADKMFTYVFV LEMLLKWVAY GFKKYFTNAW CWLDFLIVDV SLVSLVANTL GFAEMGPIKS LRTLRALRPL RALSRF EGM RVVVNALVGA IPSIMNVLLV CLIFWLIFSI MGVNLFAGKF GRCINQTEGD LPLNYTIVNN KSQCESLNLT GELYWTK VK VNFDNVGAGY LALLQVATFK GWMDIMYAAV DSRGYEEQPQ WEYNLYMYIY FVIFIIFGSF FTLNLFIGVI IDNFNQQK K KLGGQDIFMT EEQKKYYNAM KKLGSKKPQK PIPRPLNKYQ GFIFDIVTKQ AFDVTIMFLI CLNMVTMMVE TDDQSPEKI NILAKINLLF VAIFTGECIV KLAALRHYYF TNSWNIFDFV VVILSIVGTV LSDIIQKYFF SPTLFRVIRL ARIGRILRLI RGAKGIRTL LFALMMSLPA LFNIGLLLFL VMFIYSIFGM ANFAYVKWEA GIDDMFNFQT FANSMLCLFQ ITTSAGWDGL L SPILNTGP PYCDPTLPNS NGSRGDCGSP AVGILFFTTY IIISFLIVVN MYIAIILENF SVATEESTEP LSEDDFDMFY EI WEKFDPE ATQFIEYSVL SDFADALSEP LRIAKPNQIS LINMDLPMVS GDRIHCMDIL FAFTKRVLGE SGEMDALKIQ MEE KFMAAN PSKISYEPIT TTLRRKHEEV SAMVIQRAFR RHLLQRSLKH ASFLFRQQAG SGLSEEDAPE REGLIAYVMS ENFS RPLGP PSSSSISSTS FPPSYDSVTR ATSDNLQVRG SDYSHSEDLA DFPPSPDRDR ESIV |
-分子 #2: 2-acetamido-2-deoxy-beta-D-glucopyranose
分子 | 名称: 2-acetamido-2-deoxy-beta-D-glucopyranose / タイプ: ligand / ID: 2 / コピー数: 9 / 式: NAG |
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分子量 | 理論値: 221.208 Da |
Chemical component information | ChemComp-NAG: |
-分子 #3: Quinidine
分子 | 名称: Quinidine / タイプ: ligand / ID: 3 / コピー数: 1 / 式: QDN |
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分子量 | 理論値: 324.417 Da |
Chemical component information | ChemComp-QDN: |
-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: 7.5 |
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グリッド | モデル: Quantifoil R1.2/1.3 / 材質: GOLD / メッシュ: 300 / 支持フィルム - 材質: CARBON / 支持フィルム - トポロジー: HOLEY |
凍結 | 凍結剤: ETHANE |
-電子顕微鏡法
顕微鏡 | FEI TITAN KRIOS |
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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 FIELDBright-field microscopy |
撮影 | フィルム・検出器のモデル: GATAN K2 SUMMIT (4k x 4k) 平均電子線量: 48.0 e/Å2 |
実験機器 | モデル: Titan Krios / 画像提供: FEI Company |
-画像解析
初期 角度割当 | タイプ: MAXIMUM LIKELIHOOD |
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最終 角度割当 | タイプ: MAXIMUM LIKELIHOOD |
最終 再構成 | 解像度のタイプ: BY AUTHOR / 解像度: 3.3 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 使用した粒子像数: 124954 |