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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: 6dm0 | ||||||||||||
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| タイトル | Open state GluA2 in complex with STZ and blocked by IEM-1460, after micelle signal subtraction | ||||||||||||
要素 | Glutamate receptor 2,Voltage-dependent calcium channel gamma-2 subunit | ||||||||||||
キーワード | TRANSPORT PROTEIN / Ion channel | ||||||||||||
| 機能・相同性 | 機能・相同性情報LGI-ADAM interactions / Presynaptic depolarization and calcium channel opening / eye blink reflex / positive regulation of protein localization to basolateral plasma membrane / cerebellar mossy fiber / postsynaptic neurotransmitter receptor diffusion trapping / channel regulator activity / regulation of AMPA receptor activity / Trafficking of AMPA receptors / membrane hyperpolarization ...LGI-ADAM interactions / Presynaptic depolarization and calcium channel opening / eye blink reflex / positive regulation of protein localization to basolateral plasma membrane / cerebellar mossy fiber / postsynaptic neurotransmitter receptor diffusion trapping / channel regulator activity / regulation of AMPA receptor activity / Trafficking of AMPA receptors / membrane hyperpolarization / protein targeting to membrane / voltage-gated calcium channel complex / spine synapse / dendritic spine neck / dendritic spine head / cellular response to amine stimulus / neurotransmitter receptor localization to postsynaptic specialization membrane / perisynaptic space / ligand-gated monoatomic cation channel activity / Activation of AMPA receptors / neuromuscular junction development / AMPA glutamate receptor activity / response to lithium ion / Trafficking of GluR2-containing AMPA receptors / transmission of nerve impulse / kainate selective glutamate receptor activity / cellular response to glycine / extracellularly glutamate-gated ion channel activity / AMPA glutamate receptor complex / immunoglobulin binding / asymmetric synapse / ionotropic glutamate receptor complex / conditioned place preference / regulation of receptor recycling / membrane depolarization / glutamate receptor binding / Unblocking of NMDA receptors, glutamate binding and activation / positive regulation of synaptic transmission / positive regulation of synaptic transmission, glutamatergic / regulation of synaptic transmission, glutamatergic / response to fungicide / voltage-gated calcium channel activity / glutamate-gated receptor activity / regulation of long-term synaptic depression / cytoskeletal protein binding / extracellular ligand-gated monoatomic ion channel activity / cellular response to brain-derived neurotrophic factor stimulus / glutamate-gated calcium ion channel activity / presynaptic active zone membrane / somatodendritic compartment / dendrite membrane / ionotropic glutamate receptor binding / ligand-gated monoatomic ion channel activity involved in regulation of presynaptic membrane potential / dendrite cytoplasm / ionotropic glutamate receptor signaling pathway / synaptic membrane / hippocampal mossy fiber to CA3 synapse / dendritic shaft / SNARE binding / PDZ domain binding / transmitter-gated monoatomic ion channel activity involved in regulation of postsynaptic membrane potential / synaptic transmission, glutamatergic / protein tetramerization / establishment of protein localization / response to calcium ion / postsynaptic density membrane / cerebral cortex development / modulation of chemical synaptic transmission / receptor internalization / Schaffer collateral - CA1 synapse / terminal bouton / synaptic vesicle / synaptic vesicle membrane / endocytic vesicle membrane / signaling receptor activity / presynapse / amyloid-beta binding / growth cone / presynaptic membrane / scaffold protein binding / perikaryon / dendritic spine / chemical synaptic transmission / postsynaptic membrane / neuron projection / postsynaptic density / axon / external side of plasma membrane / neuronal cell body / dendrite / synapse / protein kinase binding / protein-containing complex binding / glutamatergic synapse / cell surface / endoplasmic reticulum / protein-containing complex / identical protein binding / membrane / 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: 4.4 Å | ||||||||||||
データ登録者 | Twomey, E.C. / Yelshanskaya, M.V. / Vassilevski, A.A. / Sobolevsky, A.I. | ||||||||||||
| 資金援助 | 米国, 3件
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引用 | ジャーナル: Neuron / 年: 2018タイトル: Mechanisms of Channel Block in Calcium-Permeable AMPA Receptors. 著者: Edward C Twomey / Maria V Yelshanskaya / Alexander A Vassilevski / Alexander I Sobolevsky / ![]() 要旨: AMPA receptors mediate fast excitatory neurotransmission and are critical for CNS development and function. Calcium-permeable subsets of AMPA receptors are strongly implicated in acute and chronic ...AMPA receptors mediate fast excitatory neurotransmission and are critical for CNS development and function. Calcium-permeable subsets of AMPA receptors are strongly implicated in acute and chronic neurological disorders. However, despite the clinical importance, the therapeutic landscape for specifically targeting them, and not the calcium-impermeable AMPA receptors, remains largely undeveloped. To address this problem, we used cryo-electron microscopy and electrophysiology to investigate the mechanisms by which small-molecule blockers selectively inhibit ion channel conductance in calcium-permeable AMPA receptors. We determined the structures of calcium-permeable GluA2 AMPA receptor complexes with the auxiliary subunit stargazin bound to channel blockers, including the orb weaver spider toxin AgTx-636, the spider toxin analog NASPM, and the adamantane derivative IEM-1460. Our structures provide insights into the architecture of the blocker binding site and the mechanism of trapping, which are critical for development of small molecules that specifically target calcium-permeable AMPA receptors. | ||||||||||||
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構造の表示
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| 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 | 6dm0.cif.gz | 691.1 KB | 表示 | PDBx/mmCIF形式 |
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| PDB形式 | pdb6dm0.ent.gz | 562.9 KB | 表示 | PDB形式 |
| PDBx/mmJSON形式 | 6dm0.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/dm/6dm0 ftp://data.pdbj.org/pub/pdb/validation_reports/dm/6dm0 | 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
| #1: タンパク質 | 分子量: 115178.531 Da / 分子数: 4 / 由来タイプ: 組換発現 由来: (組換発現) ![]() Homo sapiens (ヒト)遺伝子: Gria2, Glur2, CACNG2 / 発現宿主: Homo sapiens (ヒト) / 参照: UniProt: P19491, UniProt: Q9Y698#2: 化合物 | ChemComp-GLU / #3: 化合物 | ChemComp-CYZ / #4: 化合物 | ChemComp-GZD / | Has protein modification | 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: Open state GluA2 in complex with STZ and blocked by IEM-1460, after micelle signal subtraction タイプ: COMPLEX 詳細: The full-map (non-TMD-directed) is included as a supplemental file Entity ID: #1 / 由来: RECOMBINANT |
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| 分子量 | 実験値: NO |
| 由来(天然) | 生物種: ![]() |
| 由来(組換発現) | 生物種: Homo sapiens (ヒト) / 細胞: HEK293 gnti- |
| 緩衝液 | pH: 8 |
| 試料 | 濃度: 4 mg/ml / 包埋: NO / シャドウイング: NO / 染色: NO / 凍結: YES 詳細: Open state GluA2 in complex with STZ and blocked by IEM-1460, after micelle signal subtraction |
| 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: 295 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: FIELD EMISSION GUN / 加速電圧: 300 kV / 照射モード: SPOT SCAN |
| 電子レンズ | モード: BRIGHT FIELD |
| 撮影 | 平均露光時間: 8 sec. / 電子線照射量: 55 e/Å2 / 検出モード: COUNTING フィルム・検出器のモデル: GATAN K2 SUMMIT (4k x 4k) |
| 画像スキャン | 動画フレーム数/画像: 40 |
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解析
| CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION |
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| 対称性 | 点対称性: C2 (2回回転対称) |
| 3次元再構成 | 解像度: 4.4 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 30849 詳細: Full map resolution (supplemental file) is 4.8 angstrom. 対称性のタイプ: POINT |
| 原子モデル構築 | 空間: REAL |
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万見について





Homo sapiens (ヒト)
米国, 3件
引用
UCSF Chimera












PDBj












