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基本情報
登録情報 | データベース: EMDB / ID: EMD-9387 | |||||||||
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タイトル | structure of a complex | |||||||||
![]() | Structure of a complex | |||||||||
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![]() | AMPA receptor / ligand gated ion channel / neurotransmitter / synapse / MEMBRANE PROTEIN / MEMBRANE PROTEIN-IMMUNE SYSTEM complex | |||||||||
機能・相同性 | ![]() Presynaptic depolarization and calcium channel opening / Cargo concentration in the ER / cellular response to amine stimulus / axonal spine / COPII-mediated vesicle transport / positive regulation of membrane potential / positive regulation of locomotion involved in locomotory behavior / eye blink reflex / positive regulation of protein localization to basolateral plasma membrane / cellular response to ammonium ion ...Presynaptic depolarization and calcium channel opening / Cargo concentration in the ER / cellular response to amine stimulus / axonal spine / COPII-mediated vesicle transport / positive regulation of membrane potential / positive regulation of locomotion involved in locomotory behavior / eye blink reflex / positive regulation of protein localization to basolateral plasma membrane / cellular response to ammonium ion / response to sucrose / cerebellar mossy fiber / LGI-ADAM interactions / postsynaptic neurotransmitter receptor diffusion trapping / proximal dendrite / myosin V binding / neuron spine / Trafficking of AMPA receptors / channel regulator activity / cellular response to L-glutamate / regulation of AMPA receptor activity / regulation of monoatomic ion transmembrane transport / conditioned place preference / response to arsenic-containing substance / cellular response to dsRNA / membrane hyperpolarization / dendritic spine membrane / Synaptic adhesion-like molecules / nervous system process / protein targeting to membrane / long-term synaptic depression / beta-2 adrenergic receptor binding / cellular response to peptide hormone stimulus / voltage-gated calcium channel complex / response to morphine / neuronal cell body membrane / peptide hormone receptor binding / protein kinase A binding / neurotransmitter receptor localization to postsynaptic specialization membrane / spine synapse / dendritic spine neck / neuromuscular junction development / response to psychosocial stress / dendritic spine head / spinal cord development / Activation of AMPA receptors / perisynaptic space / transmission of nerve impulse / ligand-gated monoatomic cation channel activity / AMPA glutamate receptor activity / : / Trafficking of GluR2-containing AMPA receptors / response to lithium ion / immunoglobulin binding / behavioral response to pain / AMPA glutamate receptor complex / kainate selective glutamate receptor activity / ionotropic glutamate receptor complex / cellular response to glycine / extracellularly glutamate-gated ion channel activity / adenylate cyclase binding / membrane depolarization / asymmetric synapse / regulation of receptor recycling / excitatory synapse / positive regulation of excitatory postsynaptic potential / Unblocking of NMDA receptors, glutamate binding and activation / G-protein alpha-subunit binding / long-term memory / postsynaptic density, intracellular component / glutamate receptor binding / positive regulation of synaptic transmission / regulation of postsynaptic membrane neurotransmitter receptor levels / voltage-gated calcium channel activity / response to electrical stimulus / neuronal action potential / glutamate-gated receptor activity / regulation of synaptic transmission, glutamatergic / response to fungicide / synapse assembly / cytoskeletal protein binding / ionotropic glutamate receptor binding / extracellular ligand-gated monoatomic ion channel activity / presynaptic active zone membrane / somatodendritic compartment / cellular response to brain-derived neurotrophic factor stimulus / glutamate-gated calcium ion channel activity / calcium channel regulator activity / ligand-gated monoatomic ion channel activity involved in regulation of presynaptic membrane potential / dendrite cytoplasm / dendrite membrane / ionotropic glutamate receptor signaling pathway / positive regulation of synaptic transmission, glutamatergic / SNARE binding / hippocampal mossy fiber to CA3 synapse / dendritic shaft / regulation of membrane potential / transmitter-gated monoatomic ion channel activity involved in regulation of postsynaptic membrane potential / synaptic transmission, glutamatergic / PDZ domain binding 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: 6.7 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. | |||||||||
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構造の表示
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構造ビューア | EMマップ: ![]() ![]() ![]() |
添付画像 |
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マップデータ | ![]() | 10.7 MB | ![]() | |
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ヘッダ (付随情報) | ![]() ![]() | 25.8 KB 25.8 KB | 表示 表示 | ![]() |
画像 | ![]() | 91.5 KB | ||
Filedesc metadata | ![]() | 7.9 KB | ||
その他 | ![]() ![]() ![]() | 7.8 MB 8.9 MB 8.9 MB | ||
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 | ![]() 6njlMC ![]() 0426C ![]() 0427C ![]() 0428C ![]() 0429C ![]() 0430C ![]() 0431C ![]() 0432C ![]() 9388C ![]() 9389C ![]() 6njmC ![]() 6njnC 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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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 | Structure of a 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: Structure of a complex
ファイル | emd_9387_additional_1.map | ||||||||||||
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注釈 | Structure of a complex | ||||||||||||
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密度ヒストグラム |
-追加マップ: Structure of a complex
ファイル | emd_9387_additional_2.map | ||||||||||||
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注釈 | Structure of a complex | ||||||||||||
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密度ヒストグラム |
-追加マップ: Structure of a complex
ファイル | emd_9387_additional_3.map | ||||||||||||
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注釈 | Structure of a 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 A1A2A1A2 complex bound with MPQX
+超分子 #1: Native A1A2A1A2 complex bound with MPQX
+分子 #1: Glutamate receptor 1
+分子 #2: Glutamate receptor 2
+分子 #3: A'/C' auxiliary proteins
+分子 #4: Voltage-dependent calcium channel gamma-2 subunit
+分子 #5: 11B8 scFv
+分子 #6: 15F1 Fab light chain
+分子 #7: 15F1 Fab heavy chain
+分子 #9: {[7-morpholin-4-yl-2,3-dioxo-6-(trifluoromethyl)-3,4-dihydroquino...
+分子 #10: 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-6njl: |