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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: 8f0s | ||||||
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タイトル | Structure of VSD4-NaV1.7-NaVPas channel chimera bound to the hybrid inhibitor GNE-9296 | ||||||
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![]() | MEMBRANE PROTEIN/INHIBITOR / Ion channel / small molecule / inhibitor / MEMBRANE PROTEIN-INHIBITOR complex | ||||||
機能・相同性 | ![]() action potential propagation / detection of mechanical stimulus involved in sensory perception / membrane depolarization during action potential / host cell presynaptic membrane / cardiac muscle cell action potential involved in contraction / node of Ranvier / voltage-gated sodium channel complex / voltage-gated monoatomic cation channel activity / Interaction between L1 and Ankyrins / voltage-gated sodium channel activity ...action potential propagation / detection of mechanical stimulus involved in sensory perception / membrane depolarization during action potential / host cell presynaptic membrane / cardiac muscle cell action potential involved in contraction / node of Ranvier / voltage-gated sodium channel complex / voltage-gated monoatomic cation channel activity / Interaction between L1 and Ankyrins / voltage-gated sodium channel activity / Phase 0 - rapid depolarisation / behavioral response to pain / detection of temperature stimulus involved in sensory perception of pain / sodium channel regulator activity / neuronal action potential / axon terminus / sensory perception of pain / sodium ion transmembrane transport / post-embryonic development / response to toxic substance / circadian rhythm / Sensory perception of sweet, bitter, and umami (glutamate) taste / toxin activity / inflammatory response / axon / extracellular region / plasma membrane 類似検索 - 分子機能 | ||||||
生物種 | ![]() ![]() ![]() | ||||||
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: 3.1 Å | ||||||
![]() | Kschonsak, M. / Jao, C.C. / Arthur, C.P. / Rohou, A.L. / Bergeron, P. / Ortwine, D. / McKerall, S.J. / Hackos, D.H. / Deng, L. / Chen, J. ...Kschonsak, M. / Jao, C.C. / Arthur, C.P. / Rohou, A.L. / Bergeron, P. / Ortwine, D. / McKerall, S.J. / Hackos, D.H. / Deng, L. / Chen, J. / Sutherlin, D. / Dragovich, P.S. / Volgraf, M. / Wright, M.R. / Payandeh, J. / Ciferri, C. / Tellis, J.C. | ||||||
資金援助 | 1件
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![]() | ![]() タイトル: Cryo-EM reveals an unprecedented binding site for Na1.7 inhibitors enabling rational design of potent hybrid inhibitors. 著者: Marc Kschonsak / Christine C Jao / Christopher P Arthur / Alexis L Rohou / Philippe Bergeron / Daniel F Ortwine / Steven J McKerrall / David H Hackos / Lunbin Deng / Jun Chen / Tianbo Li / ...著者: Marc Kschonsak / Christine C Jao / Christopher P Arthur / Alexis L Rohou / Philippe Bergeron / Daniel F Ortwine / Steven J McKerrall / David H Hackos / Lunbin Deng / Jun Chen / Tianbo Li / Peter S Dragovich / Matthew Volgraf / Matthew R Wright / Jian Payandeh / Claudio Ciferri / John C Tellis / ![]() 要旨: The voltage-gated sodium (Na) channel Na1.7 has been identified as a potential novel analgesic target due to its involvement in human pain syndromes. However, clinically available Na channel-blocking ...The voltage-gated sodium (Na) channel Na1.7 has been identified as a potential novel analgesic target due to its involvement in human pain syndromes. However, clinically available Na channel-blocking drugs are not selective among the nine Na channel subtypes, Na1.1-Na1.9. Moreover, the two currently known classes of Na1.7 subtype-selective inhibitors (aryl- and acylsulfonamides) have undesirable characteristics that may limit their development. To this point understanding of the structure-activity relationships of the acylsulfonamide class of Na1.7 inhibitors, exemplified by the clinical development candidate , has been based solely on a single co-crystal structure of an arylsulfonamide inhibitor bound to voltage-sensing domain 4 (VSD4). To advance inhibitor design targeting the Na1.7 channel, we pursued high-resolution ligand-bound Na1.7-VSD4 structures using cryogenic electron microscopy (cryo-EM). Here, we report that engages the Na1.7-VSD4 through an unexpected binding mode orthogonal to the arylsulfonamide inhibitor class binding pose, which identifies a previously unknown ligand binding site in Na channels. This finding enabled the design of a novel hybrid inhibitor series that bridges the aryl- and acylsulfonamide binding pockets and allows for the generation of molecules with substantially differentiated structures and properties. Overall, our study highlights the power of cryo-EM methods to pursue challenging drug targets using iterative and high-resolution structure-guided inhibitor design. This work also underscores an important role of the membrane bilayer in the optimization of selective Na channel modulators targeting VSD4. | ||||||
履歴 |
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構造の表示
構造ビューア | 分子: ![]() ![]() |
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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 | ![]() | 234.5 KB | 表示 | ![]() |
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PDB形式 | ![]() | 181.5 KB | 表示 | ![]() |
PDBx/mmJSON形式 | ![]() | ツリー表示 | ![]() | |
その他 | ![]() |
-検証レポート
アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
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-関連構造データ
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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
-タンパク質 , 2種, 2分子 AB
#1: タンパク質 | 分子量: 184481.906 Da / 分子数: 1 断片: Chimeric construct of human Nav1.7 VSD4 and the NavPaS channel from American cockroach Periplaneta americana 由来タイプ: 組換発現 由来: (組換発現) ![]() ![]() 遺伝子: SCN9A, NENA / 発現宿主: ![]() |
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#2: タンパク質 | 分子量: 8240.277 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() |
-糖 , 3種, 6分子 
#3: 多糖 | beta-D-mannopyranose-(1-3)-[beta-D-mannopyranose-(1-6)]beta-D-mannopyranose-(1-3)-2-acetamido-2- ...beta-D-mannopyranose-(1-3)-[beta-D-mannopyranose-(1-6)]beta-D-mannopyranose-(1-3)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-3)-2-acetamido-2-deoxy-beta-D-glucopyranose タイプ: oligosaccharide / 分子量: 910.823 Da / 分子数: 1 / 由来タイプ: 組換発現 |
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#4: 多糖 | 2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose |
#5: 糖 | ChemComp-NAG / |
-非ポリマー , 3種, 3分子 




#6: 化合物 | ChemComp-X80 / |
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#7: 化合物 | ChemComp-PEE / |
#8: 化合物 | ChemComp-Y01 / |
-詳細
研究の焦点であるリガンドがあるか | Y |
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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: VSD4-NaV1.7-NaVPas channel chimera bound to the hybrid inhibitor GNE-9296 タイプ: COMPLEX 詳細: Chimeric construct of human Nav1.7 VSD4 and the NavPaS channel from American cockroach Periplaneta americana Entity ID: #1-#2 / 由来: MULTIPLE SOURCES | |||||||||||||||||||||||||
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分子量 | 実験値: NO | |||||||||||||||||||||||||
由来(天然) |
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由来(組換発現) | 生物種: ![]() | |||||||||||||||||||||||||
緩衝液 | pH: 7.5 | |||||||||||||||||||||||||
緩衝液成分 |
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試料 | 濃度: 2 mg/ml / 包埋: NO / シャドウイング: NO / 染色: NO / 凍結: YES 詳細: The sample was monodisperse. The sample was crosslinked with 0.05% glutaraldehyde for 10 minutes at RT, then quenched with 1M Tris pH7.0. | |||||||||||||||||||||||||
試料支持 | グリッドの材料: GOLD / グリッドのサイズ: 200 divisions/in. / グリッドのタイプ: UltrAuFoil R2/2 | |||||||||||||||||||||||||
急速凍結 | 装置: FEI VITROBOT MARK IV / 凍結剤: ETHANE / 湿度: 100 % / 凍結前の試料温度: 277.15 K |
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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: ![]() |
電子レンズ | モード: BRIGHT FIELD / 最大 デフォーカス(公称値): 1500 nm / 最小 デフォーカス(公称値): 500 nm |
撮影 | 平均露光時間: 10 sec. / 電子線照射量: 50 e/Å2 フィルム・検出器のモデル: GATAN K2 QUANTUM (4k x 4k) |
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解析
EMソフトウェア |
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CTF補正 | 詳細: microgaphs with CTFfit of 6.0 A or better were selected タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||||||||||||||||||
粒子像の選択 | 選択した粒子像数: 1774062 詳細: template-matching particle picking with a 30A low-pass filtered template | ||||||||||||||||||||||||||||||||||||||||
対称性 | 点対称性: C1 (非対称) | ||||||||||||||||||||||||||||||||||||||||
3次元再構成 | 解像度: 3.1 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 826525 / 対称性のタイプ: POINT | ||||||||||||||||||||||||||||||||||||||||
原子モデル構築 | プロトコル: FLEXIBLE FIT / 空間: REAL |