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基本情報
登録情報 | データベース: EMDB / ID: EMD-9389 | |||||||||
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タイトル | structure of a complex | |||||||||
![]() | Complex | |||||||||
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![]() | AMPA receptor / ligand gated ion channel / neurotransmitter / synapse / MEMBRANE PROTEIN | |||||||||
機能・相同性 | ![]() Presynaptic depolarization and calcium channel opening / Cargo concentration in the ER / axonal spine / positive regulation of locomotion involved in locomotory behavior / positive regulation of membrane potential / eye blink reflex / positive regulation of protein localization to basolateral plasma membrane / COPII-mediated vesicle transport / cellular response to ammonium ion / response to sucrose ...Presynaptic depolarization and calcium channel opening / Cargo concentration in the ER / axonal spine / positive regulation of locomotion involved in locomotory behavior / positive regulation of membrane potential / eye blink reflex / positive regulation of protein localization to basolateral plasma membrane / COPII-mediated vesicle transport / cellular response to ammonium ion / response to sucrose / cerebellar mossy fiber / postsynaptic neurotransmitter receptor diffusion trapping / neuron spine / myosin V binding / regulation of AMPA receptor activity / Trafficking of AMPA receptors / channel regulator activity / LGI-ADAM interactions / proximal dendrite / regulation of monoatomic ion transmembrane transport / response to arsenic-containing substance / cellular response to dsRNA / cellular response to L-glutamate / membrane hyperpolarization / dendritic spine membrane / nervous system process / long-term synaptic depression / Synaptic adhesion-like molecules / beta-2 adrenergic receptor binding / protein targeting to membrane / voltage-gated calcium channel complex / cellular response to peptide hormone stimulus / response to morphine / neuronal cell body membrane / spine synapse / protein heterotetramerization / dendritic spine neck / protein kinase A binding / neurotransmitter receptor localization to postsynaptic specialization membrane / dendritic spine head / peptide hormone receptor binding / cellular response to amine stimulus / response to psychosocial stress / neuromuscular junction development / spinal cord development / parallel fiber to Purkinje cell synapse / Activation of AMPA receptors / perisynaptic space / ligand-gated monoatomic cation channel activity / AMPA glutamate receptor activity / transmission of nerve impulse / Trafficking of GluR2-containing AMPA receptors / response to lithium ion / behavioral response to pain / kainate selective glutamate receptor activity / AMPA glutamate receptor complex / cellular response to glycine / extracellularly glutamate-gated ion channel activity / adenylate cyclase binding / ionotropic glutamate receptor complex / immunoglobulin binding / asymmetric synapse / conditioned place preference / excitatory synapse / membrane depolarization / response to electrical stimulus / regulation of receptor recycling / G-protein alpha-subunit binding / positive regulation of excitatory postsynaptic potential / glutamate receptor binding / Unblocking of NMDA receptors, glutamate binding and activation / long-term memory / positive regulation of synaptic transmission / positive regulation of synaptic transmission, glutamatergic / synaptic cleft / postsynaptic density, intracellular component / regulation of postsynaptic membrane neurotransmitter receptor levels / neuronal action potential / voltage-gated calcium channel activity / regulation of synaptic transmission, glutamatergic / response to fungicide / glutamate-gated receptor activity / cytoskeletal protein binding / synapse assembly / regulation of long-term synaptic depression / 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 / ionotropic glutamate receptor binding / dendrite membrane / 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 / SNARE binding / dendritic shaft / regulation of membrane potential 類似検索 - 分子機能 | |||||||||
生物種 | ![]() ![]() ![]() ![]() | |||||||||
手法 | 単粒子再構成法 / クライオ電子顕微鏡法 / 解像度: 6.5 Å | |||||||||
![]() | Gouaux E / Zhao Y | |||||||||
![]() | ![]() タイトル: Architecture and subunit arrangement of native AMPA receptors elucidated by cryo-EM. 著者: Yan Zhao / Shanshuang Chen / Adam C Swensen / Wei-Jun Qian / Eric Gouaux / ![]() 要旨: Glutamate-gated AMPA receptors mediate the fast component of excitatory signal transduction at chemical synapses throughout all regions of the mammalian brain. AMPA receptors are tetrameric ...Glutamate-gated AMPA receptors mediate the fast component of excitatory signal transduction at chemical synapses throughout all regions of the mammalian brain. AMPA receptors are tetrameric assemblies composed of four subunits, GluA1-GluA4. Despite decades of study, the subunit composition, subunit arrangement, and molecular structure of native AMPA receptors remain unknown. Here we elucidate the structures of 10 distinct native AMPA receptor complexes by single-particle cryo-electron microscopy (cryo-EM). We find that receptor subunits are arranged nonstochastically, with the GluA2 subunit preferentially occupying the B and D positions of the tetramer and with triheteromeric assemblies comprising a major population of native AMPA receptors. Cryo-EM maps define the structure for S2-M4 linkers between the ligand-binding and transmembrane domains, suggesting how neurotransmitter binding is coupled to ion channel gating. | |||||||||
履歴 |
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構造の表示
ムービー |
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構造ビューア | EMマップ: ![]() ![]() ![]() |
添付画像 |
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ダウンロードとリンク
-EMDBアーカイブ
マップデータ | ![]() | 8.4 MB | ![]() | |
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ヘッダ (付随情報) | ![]() ![]() | 33.3 KB 33.3 KB | 表示 表示 | ![]() |
画像 | ![]() | 113.6 KB | ||
Filedesc metadata | ![]() | 8.5 KB | ||
その他 | ![]() ![]() ![]() | 6.4 MB 7.7 MB 8.6 MB | ||
アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
-検証レポート
文書・要旨 | ![]() | 345.6 KB | 表示 | ![]() |
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文書・詳細版 | ![]() | 345.2 KB | 表示 | |
XML形式データ | ![]() | 6.5 KB | 表示 | |
CIF形式データ | ![]() | 7.6 KB | 表示 | |
アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
-関連構造データ
関連構造データ | ![]() 6njnMC ![]() 0426C ![]() 0427C ![]() 0428C ![]() 0429C ![]() 0430C ![]() 0431C ![]() 0432C ![]() 9387C ![]() 9388C ![]() 6njlC ![]() 6njmC M: このマップから作成された原子モデル C: 同じ文献を引用 ( |
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類似構造データ |
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リンク
EMDBのページ | ![]() ![]() |
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「今月の分子」の関連する項目 |
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マップ
ファイル | ![]() | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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注釈 | Complex | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
投影像・断面図 | 画像のコントロール
画像は Spider により作成 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
ボクセルのサイズ | X=Y=Z: 1.72 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
-追加マップ: Complex
ファイル | emd_9389_additional_1.map | ||||||||||||
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注釈 | Complex | ||||||||||||
投影像・断面図 |
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密度ヒストグラム |
-追加マップ: Complex
ファイル | emd_9389_additional_2.map | ||||||||||||
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注釈 | Complex | ||||||||||||
投影像・断面図 |
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密度ヒストグラム |
-追加マップ: Complex
ファイル | emd_9389_additional_3.map | ||||||||||||
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注釈 | Complex | ||||||||||||
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密度ヒストグラム |
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試料の構成要素
+全体 : Native GluA1/GluA2/GluA3/GluA2 complex bound with MPQX
+超分子 #1: Native GluA1/GluA2/GluA3/GluA2 complex bound with MPQX
+超分子 #2: ATD-LBD layers of native tri-heteromeric A1A2A3A2 AMPAR
+超分子 #3: LBD-TMD layers of native tri-heteromeric A1A2A3A2 AMPAR
+超分子 #4: ATD layer of native tri-heteromeric A1A2A3A2 AMPAR
+分子 #1: Glutamate receptor 1
+分子 #2: Glutamate receptor 2
+分子 #3: Glutamate receptor 3
+分子 #4: A'-C' auxiliary proteins
+分子 #5: Voltage-dependent calcium channel gamma-2 subunit
+分子 #6: 11B8 scFv
+分子 #7: 15F1 Fab light chain
+分子 #8: 15F1 Fab heavy chain
+分子 #9: 5B2 Fab
+分子 #12: {[7-morpholin-4-yl-2,3-dioxo-6-(trifluoromethyl)-3,4-dihydroquino...
+分子 #13: 2-acetamido-2-deoxy-beta-D-glucopyranose
-実験情報
-構造解析
手法 | クライオ電子顕微鏡法 |
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![]() | 単粒子再構成法 |
試料の集合状態 | particle |
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試料調製
濃度 | 4 mg/mL | ||||||||||||
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緩衝液 | pH: 8 構成要素:
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グリッド | 詳細: unspecified | ||||||||||||
凍結 | 凍結剤: ETHANE / チャンバー内湿度: 100 % / チャンバー内温度: 295 K |
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電子顕微鏡法
顕微鏡 | FEI TITAN KRIOS |
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撮影 | フィルム・検出器のモデル: GATAN K2 SUMMIT (4k x 4k) 検出モード: SUPER-RESOLUTION / 平均電子線量: 54.0 e/Å2 |
電子線 | 加速電圧: 300 kV / 電子線源: ![]() |
電子光学系 | 照射モード: FLOOD BEAM / 撮影モード: BRIGHT FIELD |
実験機器 | ![]() モデル: Titan Krios / 画像提供: FEI Company |
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画像解析
-原子モデル構築 1
精密化 | 空間: REAL / プロトコル: RIGID BODY FIT |
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得られたモデル | ![]() PDB-6njn: |