+データを開く
-基本情報
登録情報 | データベース: PDB / ID: 7w7f | ||||||
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タイトル | Cryo-EM structure of human NaV1.3/beta1/beta2-ICA121431 | ||||||
要素 |
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キーワード | MEMBRANE PROTEIN / Ion channel / Drug / antagonist | ||||||
機能・相同性 | 機能・相同性情報 corticospinal neuron axon guidance / positive regulation of voltage-gated sodium channel activity / response to pyrethroid / voltage-gated sodium channel activity involved in cardiac muscle cell action potential / membrane depolarization during Purkinje myocyte cell action potential / voltage-gated potassium channel activity involved in ventricular cardiac muscle cell action potential repolarization / regulation of atrial cardiac muscle cell membrane depolarization / cardiac conduction / regulation of sodium ion transmembrane transport / membrane depolarization during cardiac muscle cell action potential ...corticospinal neuron axon guidance / positive regulation of voltage-gated sodium channel activity / response to pyrethroid / voltage-gated sodium channel activity involved in cardiac muscle cell action potential / membrane depolarization during Purkinje myocyte cell action potential / voltage-gated potassium channel activity involved in ventricular cardiac muscle cell action potential repolarization / regulation of atrial cardiac muscle cell membrane depolarization / cardiac conduction / regulation of sodium ion transmembrane transport / membrane depolarization during cardiac muscle cell action potential / positive regulation of sodium ion transport / node of Ranvier / sodium channel inhibitor activity / membrane depolarization during action potential / voltage-gated sodium channel complex / cardiac muscle cell action potential involved in contraction / locomotion / regulation of ventricular cardiac muscle cell membrane repolarization / neuronal action potential propagation / Interaction between L1 and Ankyrins / voltage-gated sodium channel activity / sodium ion transport / behavioral response to pain / Phase 0 - rapid depolarisation / regulation of heart rate by cardiac conduction / membrane depolarization / intercalated disc / sarcoplasm / sodium channel regulator activity / sodium ion transmembrane transport / cardiac muscle contraction / T-tubule / axon guidance / positive regulation of neuron projection development / Sensory perception of sweet, bitter, and umami (glutamate) taste / nervous system development / gene expression / response to heat / chemical synaptic transmission / perikaryon / transmembrane transporter binding / cell adhesion / synapse / extracellular region / 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: 3.35 Å | ||||||
データ登録者 | Jiang, D. / Li, X. | ||||||
資金援助 | 中国, 1件
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引用 | ジャーナル: Nat Commun / 年: 2022 タイトル: Structural basis for modulation of human Na1.3 by clinical drug and selective antagonist. 著者: Xiaojing Li / Feng Xu / Hao Xu / Shuli Zhang / Yiwei Gao / Hongwei Zhang / Yanli Dong / Yanchun Zheng / Bei Yang / Jianyuan Sun / Xuejun Cai Zhang / Yan Zhao / Daohua Jiang / 要旨: Voltage-gated sodium (Na) channels play fundamental roles in initiating and propagating action potentials. Na1.3 is involved in numerous physiological processes including neuronal development, ...Voltage-gated sodium (Na) channels play fundamental roles in initiating and propagating action potentials. Na1.3 is involved in numerous physiological processes including neuronal development, hormone secretion and pain perception. Here we report structures of human Na1.3/β1/β2 in complex with clinically-used drug bulleyaconitine A and selective antagonist ICA121431. Bulleyaconitine A is located around domain I-II fenestration, providing the detailed view of the site-2 neurotoxin binding site. It partially blocks ion path and expands the pore-lining helices, elucidating how the bulleyaconitine A reduces peak amplitude but improves channel open probability. In contrast, ICA121431 preferentially binds to activated domain IV voltage-sensor, consequently strengthens the Ile-Phe-Met motif binding to its receptor site, stabilizes the channel in inactivated state, revealing an allosterically inhibitory mechanism of Na channels. Our results provide structural details of distinct small-molecular modulators binding sites, elucidate molecular mechanisms of their action on Na channels and pave a way for subtype-selective therapeutic development. | ||||||
履歴 |
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-構造の表示
構造ビューア | 分子: MolmilJmol/JSmol |
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-ダウンロードとリンク
-ダウンロード
PDBx/mmCIF形式 | 7w7f.cif.gz | 312.8 KB | 表示 | PDBx/mmCIF形式 |
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PDB形式 | pdb7w7f.ent.gz | 232.6 KB | 表示 | PDB形式 |
PDBx/mmJSON形式 | 7w7f.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 | 7w7f_validation.pdf.gz | 1.8 MB | 表示 | wwPDB検証レポート |
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文書・詳細版 | 7w7f_full_validation.pdf.gz | 1.8 MB | 表示 | |
XML形式データ | 7w7f_validation.xml.gz | 51 KB | 表示 | |
CIF形式データ | 7w7f_validation.cif.gz | 73.9 KB | 表示 | |
アーカイブディレクトリ | https://data.pdbj.org/pub/pdb/validation_reports/w7/7w7f ftp://data.pdbj.org/pub/pdb/validation_reports/w7/7w7f | HTTPS FTP |
-関連構造データ
関連構造データ | 32343MC 7w77C 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 (文献) |
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類似構造データ | 類似検索 - 機能・相同性F&H 検索 |
-リンク
-集合体
登録構造単位 |
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1 |
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-要素
-Sodium channel subunit beta- ... , 2種, 2分子 BC
#1: タンパク質 | 分子量: 24732.115 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 遺伝子: SCN1B / 細胞株 (発現宿主): HEK293 / 発現宿主: Homo sapiens (ヒト) / 参照: UniProt: Q07699 |
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#2: タンパク質 | 分子量: 24355.859 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 遺伝子: SCN2B / 細胞株 (発現宿主): HEK293 / 発現宿主: Homo sapiens (ヒト) / 参照: UniProt: O60939 |
-タンパク質 , 1種, 1分子 D
#3: タンパク質 | 分子量: 226516.453 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 遺伝子: SCN3A / 細胞株 (発現宿主): HEK293 / 発現宿主: Homo sapiens (ヒト) / 参照: UniProt: Q9NY46 |
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-糖 , 3種, 7分子
#4: 多糖 | beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta- ...beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose |
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#5: 多糖 | 2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose |
#6: 糖 | ChemComp-NAG / |
-非ポリマー , 3種, 19分子
#7: 化合物 | ChemComp-6OU / [( #8: 化合物 | ChemComp-8DE / | #9: 化合物 | ChemComp-9Z9 / ( | |
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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 | 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 |
-試料調製
構成要素 | 名称: Sodium channel complex of type 3 subunit alpha with auxiliary beta-1 and beta-2 タイプ: COMPLEX / Entity ID: #1-#3 / 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: Homo sapiens (ヒト) / 細胞: HEK293 |
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 |
-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 / 最大 デフォーカス(公称値): 2200 nm / 最小 デフォーカス(公称値): 1200 nm |
撮影 | 電子線照射量: 60 e/Å2 フィルム・検出器のモデル: GATAN K2 SUMMIT (4k x 4k) |
-解析
ソフトウェア | 名称: PHENIX / バージョン: 1.19_4092: / 分類: 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: 3.35 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 1088844 / 対称性のタイプ: POINT | ||||||||||||||||||||||||
拘束条件 |
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