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基本情報
登録情報 | データベース: PDB / ID: 7lde | ||||||
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タイトル | native AMPA receptor | ||||||
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![]() | MEMBRANE PROTEIN / neurotransmitter / hippocampus / ion-channel / glycosylation | ||||||
機能・相同性 | ![]() Phase 0 - rapid depolarisation / Phase 2 - plateau phase / Activation of AMPA receptors / Synaptic adhesion-like molecules / Cargo concentration in the ER / COPII-mediated vesicle transport / Unblocking of NMDA receptors, glutamate binding and activation / cellular response to amine stimulus / axonal spine / Trafficking of GluR2-containing AMPA receptors ...Phase 0 - rapid depolarisation / Phase 2 - plateau phase / Activation of AMPA receptors / Synaptic adhesion-like molecules / Cargo concentration in the ER / COPII-mediated vesicle transport / Unblocking of NMDA receptors, glutamate binding and activation / cellular response to amine stimulus / axonal spine / Trafficking of GluR2-containing AMPA receptors / LGI-ADAM interactions / Trafficking of AMPA receptors / positive regulation of membrane potential / positive regulation of locomotion involved in locomotory behavior / localization within membrane / cellular response to ammonium ion / response to sucrose / L-type voltage-gated calcium channel complex / proximal dendrite / myosin V binding / neuron spine / 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 / dendritic spine membrane / long-term synaptic depression / beta-2 adrenergic receptor binding / cellular response to peptide hormone stimulus / response to morphine / neuronal cell body membrane / peptide hormone receptor binding / protein kinase A binding / response to psychosocial stress / spinal cord development / perisynaptic space / AMPA glutamate receptor activity / response to lithium ion / immunoglobulin binding / behavioral response to pain / AMPA glutamate receptor complex / ionotropic glutamate receptor complex / adenylate cyclase binding / excitatory synapse / positive regulation of excitatory postsynaptic potential / regulation of receptor recycling / G-protein alpha-subunit binding / long-term memory / postsynaptic density, intracellular component / glutamate receptor binding / regulation of postsynaptic membrane neurotransmitter receptor levels / neuronal action potential / response to electrical stimulus / glutamate-gated receptor activity / synapse assembly / response to fungicide / vesicle-mediated transport / presynaptic active zone membrane / somatodendritic compartment / glutamate-gated calcium ion channel activity / cellular response to brain-derived neurotrophic factor stimulus / ligand-gated monoatomic ion channel activity involved in regulation of presynaptic membrane potential / dendrite membrane / calcium channel regulator activity / 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 / response to cocaine / synaptic membrane / response to nutrient levels / postsynaptic density membrane / neuromuscular junction / Schaffer collateral - CA1 synapse / cerebral cortex development / small GTPase binding / receptor internalization / calcium channel activity / long-term synaptic potentiation / synaptic vesicle membrane / recycling endosome membrane / synaptic vesicle / G-protein beta-subunit binding / cell-cell junction / response to estradiol / presynapse / amyloid-beta binding / cell body / early endosome membrane / scaffold protein binding / chemical synaptic transmission / dendritic spine / response to ethanol / postsynaptic membrane / postsynapse / neuron projection 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: 3.9 Å | ||||||
![]() | Yu, J. / Rao, P. / Gouaux, E. | ||||||
資金援助 | ![]()
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![]() | ![]() タイトル: Hippocampal AMPA receptor assemblies and mechanism of allosteric inhibition. 著者: Jie Yu / Prashant Rao / Sarah Clark / Jaba Mitra / Taekjip Ha / Eric Gouaux / ![]() 要旨: AMPA-selective glutamate receptors mediate the transduction of signals between the neuronal circuits of the hippocampus. The trafficking, localization, kinetics and pharmacology of AMPA receptors are ...AMPA-selective glutamate receptors mediate the transduction of signals between the neuronal circuits of the hippocampus. The trafficking, localization, kinetics and pharmacology of AMPA receptors are tuned by an ensemble of auxiliary protein subunits, which are integral membrane proteins that associate with the receptor to yield bona fide receptor signalling complexes. Thus far, extensive studies of recombinant AMPA receptor-auxiliary subunit complexes using engineered protein constructs have not been able to faithfully elucidate the molecular architecture of hippocampal AMPA receptor complexes. Here we obtain mouse hippocampal, calcium-impermeable AMPA receptor complexes using immunoaffinity purification and use single-molecule fluorescence and cryo-electron microscopy experiments to elucidate three major AMPA receptor-auxiliary subunit complexes. The GluA1-GluA2, GluA1-GluA2-GluA3 and GluA2-GluA3 receptors are the predominant assemblies, with the auxiliary subunits TARP-γ8 and CNIH2-SynDIG4 non-stochastically positioned at the B'/D' and A'/C' positions, respectively. We further demonstrate how the receptor-TARP-γ8 stoichiometry explains the mechanism of and submaximal inhibition by a clinically relevant, brain-region-specific allosteric inhibitor. | ||||||
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構造の表示
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構造ビューア | 分子: ![]() ![]() |
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PDBx/mmCIF形式 | ![]() | 840.7 KB | 表示 | ![]() |
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PDB形式 | ![]() | 647.3 KB | 表示 | ![]() |
PDBx/mmJSON形式 | ![]() | ツリー表示 | ![]() | |
その他 | ![]() |
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アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
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集合体
登録構造単位 | ![]()
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要素
-タンパク質 , 4種, 8分子 ACBDEFGH
#1: タンパク質 | 分子量: 101678.969 Da / 分子数: 2 / 由来タイプ: 天然 / 由来: (天然) ![]() ![]() #2: タンパク質 | 分子量: 98899.883 Da / 分子数: 2 / 由来タイプ: 天然 / 由来: (天然) ![]() ![]() #3: タンパク質 | 分子量: 18948.420 Da / 分子数: 2 / 由来タイプ: 天然 / 由来: (天然) ![]() ![]() #4: タンパク質 | 分子量: 43502.938 Da / 分子数: 2 / 由来タイプ: 天然 / 由来: (天然) ![]() ![]() |
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-抗体 , 3種, 6分子 ILJMKN
#5: 抗体 | 分子量: 27511.527 Da / 分子数: 2 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() ![]() ![]() #6: 抗体 | 分子量: 25111.660 Da / 分子数: 2 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() 発現宿主: ![]() #7: 抗体 | 分子量: 27975.439 Da / 分子数: 2 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() 発現宿主: ![]() |
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-糖 , 2種, 12分子 
#8: 多糖 | 2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose #14: 糖 | ChemComp-NAG / |
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-非ポリマー , 9種, 40分子 
















#9: 化合物 | ChemComp-ZK1 / {[ #10: 化合物 | #11: 化合物 | ChemComp-OCT / #12: 化合物 | ChemComp-HP6 / #13: 化合物 | ChemComp-D10 / #15: 化合物 | ChemComp-D12 / #16: 化合物 | ChemComp-C14 / #17: 化合物 | ChemComp-DD9 / #18: 化合物 | |
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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 |
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由来(天然) |
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由来(組換発現) |
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緩衝液 | pH: 8 | ||||||||||||||||||||||||||||||
試料 | 包埋: NO / シャドウイング: NO / 染色: NO / 凍結: YES | ||||||||||||||||||||||||||||||
急速凍結 | 凍結剤: ETHANE |
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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 |
撮影 | 電子線照射量: 50 e/Å2 / フィルム・検出器のモデル: GATAN K3 (6k x 4k) |
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解析
ソフトウェア | 名称: PHENIX / バージョン: 1.17_3644: / 分類: 精密化 | ||||||||||||||||||||||||
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CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
3次元再構成 | 解像度: 3.9 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 157000 / 対称性のタイプ: POINT | ||||||||||||||||||||||||
拘束条件 |
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