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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: 8ss9 | |||||||||||||||
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| タイトル | Structure of LBD-TMD of AMPA receptor GluA2 in complex with auxiliary subunit TARP gamma-5 bound to competitive antagonist ZK and antiepileptic drug perampanel (closed state) | |||||||||||||||
要素 | Glutamate receptor 2, Voltage-dependent calcium channel gamma-5 subunit chimera | |||||||||||||||
キーワード | SIGNALING PROTEIN / AMPA receptor / neurotransmission / TARP gamma-5 / perampanel | |||||||||||||||
| 機能・相同性 | 機能・相同性情報postsynaptic neurotransmitter receptor diffusion trapping / regulation of AMPA receptor activity / channel regulator activity / spine synapse / dendritic spine neck / dendritic spine cytoplasm / cellular response to amine stimulus / dendritic spine head / Activation of AMPA receptors / perisynaptic space ...postsynaptic neurotransmitter receptor diffusion trapping / regulation of AMPA receptor activity / channel regulator activity / spine synapse / dendritic spine neck / dendritic spine cytoplasm / cellular response to amine stimulus / dendritic spine head / Activation of AMPA receptors / perisynaptic space / ligand-gated monoatomic cation channel activity / Trafficking of GluR2-containing AMPA receptors / response to lithium ion / AMPA glutamate receptor activity / transmission of nerve impulse / AMPA glutamate receptor clustering / kainate selective glutamate receptor activity / immunoglobulin binding / asymmetric synapse / AMPA glutamate receptor complex / regulation of receptor recycling / extracellularly glutamate-gated ion channel activity / cellular response to glycine / ionotropic glutamate receptor complex / Unblocking of NMDA receptors, glutamate binding and activation / glutamate receptor binding / conditioned place preference / positive regulation of synaptic transmission / voltage-gated calcium channel activity / response to fungicide / regulation of synaptic transmission, glutamatergic / positive regulation of synaptic transmission, glutamatergic / glutamate-gated receptor activity / extracellular ligand-gated monoatomic ion channel activity / cytoskeletal protein binding / cellular response to brain-derived neurotrophic factor stimulus / regulation of long-term synaptic depression / somatodendritic compartment / glutamate-gated calcium ion channel activity / presynaptic active zone membrane / excitatory synapse / ionotropic glutamate receptor signaling pathway / ionotropic glutamate receptor binding / dendrite membrane / ligand-gated monoatomic ion channel activity involved in regulation of presynaptic membrane potential / dendrite cytoplasm / positive regulation of excitatory postsynaptic potential / dendritic shaft / synaptic membrane / SNARE binding / PDZ domain binding / synaptic transmission, glutamatergic / establishment of protein localization / protein tetramerization / transmitter-gated monoatomic ion channel activity involved in regulation of postsynaptic membrane potential / cerebral cortex development / receptor internalization / postsynaptic density membrane / modulation of chemical synaptic transmission / Schaffer collateral - CA1 synapse / terminal bouton / synaptic vesicle / long-term synaptic potentiation / amyloid-beta binding / synaptic vesicle membrane / presynapse / growth cone / signaling receptor activity / presynaptic membrane / scaffold protein binding / dendritic spine / chemical synaptic transmission / perikaryon / postsynaptic membrane / neuron projection / postsynaptic density / external side of plasma membrane / axon / neuronal cell body / synapse / dendrite / protein kinase binding / protein-containing complex binding / glutamatergic synapse / cell surface / endoplasmic reticulum / protein-containing complex / membrane / identical protein binding / 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: 2.72 Å | |||||||||||||||
データ登録者 | Gangwar, S.P. / Yen, L.Y. / Yelshanskaya, M.V. / Sobolevsky, A.I. | |||||||||||||||
| 資金援助 | 米国, 4件
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引用 | ジャーナル: Nat Struct Mol Biol / 年: 2023タイトル: Modulation of GluA2-γ5 synaptic complex desensitization, polyamine block and antiepileptic perampanel inhibition by auxiliary subunit cornichon-2. 著者: Shanti Pal Gangwar / Laura Y Yen / Maria V Yelshanskaya / Aryeh Korman / Drew R Jones / Alexander I Sobolevsky / ![]() 要旨: Synaptic complexes of α-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid (AMPA) receptors (AMPARs) with auxiliary subunits mediate most excitatory neurotransmission and can be targeted to treat ...Synaptic complexes of α-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid (AMPA) receptors (AMPARs) with auxiliary subunits mediate most excitatory neurotransmission and can be targeted to treat neuropsychiatric and neurological disorders, including epilepsy. Here we present cryogenic-electron microscopy structures of rat GluA2 AMPAR complexes with inhibitory mouse γ5 and potentiating human cornichon-2 (CNIH2) auxiliary subunits. CNIH2 appears to destabilize the desensitized state of the complex by reducing the separation of the upper lobes in ligand-binding domain dimers. At the same time, CNIH2 stabilizes binding of polyamine spermidine to the selectivity filter of the closed ion channel. Nevertheless, CNIH2, and to a lesser extent γ5, attenuate polyamine block of the open channel and reduce the potency of the antiepileptic drug perampanel that inhibits the synaptic complex allosterically by binding to sites in the ion channel extracellular collar. These findings illustrate the fine-tuning of synaptic complex structure and function in an auxiliary subunit-dependent manner, which is critical for the study of brain region-specific neurotransmission and design of therapeutics for disease treatment. | |||||||||||||||
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構造の表示
| 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 | 8ss9.cif.gz | 411.3 KB | 表示 | PDBx/mmCIF形式 |
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| PDB形式 | pdb8ss9.ent.gz | 309 KB | 表示 | PDB形式 |
| PDBx/mmJSON形式 | 8ss9.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
| アーカイブディレクトリ | https://data.pdbj.org/pub/pdb/validation_reports/ss/8ss9 ftp://data.pdbj.org/pub/pdb/validation_reports/ss/8ss9 | HTTPS FTP |
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-関連構造データ
| 関連構造データ | ![]() 40748MC ![]() 8ss2C ![]() 8ss3C ![]() 8ss4C ![]() 8ss5C ![]() 8ss6C ![]() 8ss7C ![]() 8ss8C ![]() 8ssaC ![]() 8ssbC 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 | 類似検索 - 機能・相同性 F&H 検索 |
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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 , 1種, 4分子 ABCD
| #1: タンパク質 | 分子量: 114978.859 Da / 分子数: 4 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() Homo sapiens (ヒト) / 参照: UniProt: P19491, UniProt: Q8VHW8 |
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-非ポリマー , 6種, 41分子 










| #2: 化合物 | ChemComp-6ZP / #3: 化合物 | ChemComp-ZK1 / {[ #4: 化合物 | ChemComp-PCW / #5: 化合物 | #6: 化合物 | #7: 水 | ChemComp-HOH / | |
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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 |
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試料調製
| 構成要素 | 名称: GluA2-TARP gamma5 / タイプ: COMPLEX 詳細: LBD-TMD of AMPA receptor GluA2 in complex with auxiliary subunit TARP gamma-5 bound to competitive antagonist ZK and antiepileptic drug perampanel (closed state) Entity ID: #1 / 由来: RECOMBINANT | |||||||||||||||||||||||||
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| 由来(天然) | 生物種: ![]() | |||||||||||||||||||||||||
| 由来(組換発現) | 生物種: Homo sapiens (ヒト) / 細胞: HEK293S-GnTi / プラスミド: pEG BacMam | |||||||||||||||||||||||||
| 緩衝液 | pH: 8 | |||||||||||||||||||||||||
| 緩衝液成分 |
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| 試料 | 濃度: 4.5 mg/ml / 包埋: NO / シャドウイング: NO / 染色: NO / 凍結: YES 詳細: Protein extracted and purified in detergent micelle. | |||||||||||||||||||||||||
| 試料支持 | グリッドの材料: GOLD / グリッドのサイズ: 300 divisions/in. / グリッドのタイプ: UltrAuFoil | |||||||||||||||||||||||||
| 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 K / 詳細: vitrification carried out in nitrogen atmosphere |
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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 / 最大 デフォーカス(公称値): 2000 nm / 最小 デフォーカス(公称値): 1000 nm / Cs: 2.7 mm / C2レンズ絞り径: 100 µm |
| 試料ホルダ | 凍結剤: NITROGEN 試料ホルダーモデル: FEI TITAN KRIOS AUTOGRID HOLDER |
| 撮影 | 電子線照射量: 50 e/Å2 フィルム・検出器のモデル: FEI FALCON IV (4k x 4k) |
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解析
| EMソフトウェア | 名称: PHENIX / バージョン: 1.11.1_2575: / カテゴリ: モデル精密化 | ||||||||||||||||||||||||
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| CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
| 対称性 | 点対称性: C2 (2回回転対称) | ||||||||||||||||||||||||
| 3次元再構成 | 解像度: 2.72 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 117939 / 対称性のタイプ: POINT | ||||||||||||||||||||||||
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万見について






米国, 4件
引用


















PDBj










Homo sapiens (ヒト)
FIELD EMISSION GUN