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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: 7oca | |||||||||
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タイトル | Resting state full-length GluA1/A2 heterotertramer in complex with TARP gamma 8 and CNIH2 | |||||||||
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![]() | MEMBRANE PROTEIN / AMPAR / ion channels / neurotransmission | |||||||||
機能・相同性 | ![]() negative regulation of receptor localization to synapse / negative regulation of anterograde synaptic vesicle transport / Phase 0 - rapid depolarisation / Phase 2 - plateau phase / 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 ...negative regulation of receptor localization to synapse / negative regulation of anterograde synaptic vesicle transport / Phase 0 - rapid depolarisation / Phase 2 - plateau phase / 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 / localization within membrane / cellular response to ammonium ion / L-type voltage-gated calcium channel complex / response to sucrose / 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 / protein phosphatase 2B binding / regulation of AMPA receptor activity / regulation of monoatomic ion transmembrane transport / conditioned place preference / response to arsenic-containing substance / regulation of NMDA receptor activity / cellular response to dsRNA / dendritic spine membrane / Synaptic adhesion-like molecules / 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 / spine synapse / dendritic spine neck / 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 / 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 / vesicle-mediated transport / 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 / 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 / protein tetramerization / cellular response to amino acid stimulus / response to cocaine 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: 3.4 Å | |||||||||
![]() | Zhang, D. / Watson, J.F. / Matthews, P.M. / Cais, O. / Greger, I.H. | |||||||||
資金援助 | 2件
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![]() | ![]() タイトル: Gating and modulation of a hetero-octameric AMPA glutamate receptor. 著者: Danyang Zhang / Jake F Watson / Peter M Matthews / Ondrej Cais / Ingo H Greger / ![]() ![]() 要旨: AMPA receptors (AMPARs) mediate the majority of excitatory transmission in the brain and enable the synaptic plasticity that underlies learning. A diverse array of AMPAR signalling complexes are ...AMPA receptors (AMPARs) mediate the majority of excitatory transmission in the brain and enable the synaptic plasticity that underlies learning. A diverse array of AMPAR signalling complexes are established by receptor auxiliary subunits, which associate with the AMPAR in various combinations to modulate trafficking, gating and synaptic strength. However, their mechanisms of action are poorly understood. Here we determine cryo-electron microscopy structures of the heteromeric GluA1-GluA2 receptor assembled with both TARP-γ8 and CNIH2, the predominant AMPAR complex in the forebrain, in both resting and active states. Two TARP-γ8 and two CNIH2 subunits insert at distinct sites beneath the ligand-binding domains of the receptor, with site-specific lipids shaping each interaction and affecting the gating regulation of the AMPARs. Activation of the receptor leads to asymmetry between GluA1 and GluA2 along the ion conduction path and an outward expansion of the channel triggers counter-rotations of both auxiliary subunit pairs, promoting the active-state conformation. In addition, both TARP-γ8 and CNIH2 pivot towards the pore exit upon activation, extending their reach for cytoplasmic receptor elements. CNIH2 achieves this through its uniquely extended M2 helix, which has transformed this endoplasmic reticulum-export factor into a powerful AMPAR modulator that is capable of providing hippocampal pyramidal neurons with their integrative synaptic properties. | |||||||||
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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 | ![]() | 698.8 KB | 表示 | ![]() |
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PDB形式 | ![]() | 541.7 KB | 表示 | ![]() |
PDBx/mmJSON形式 | ![]() | ツリー表示 | ![]() | |
その他 | ![]() |
-検証レポート
アーカイブディレクトリ | ![]() ![]() | 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
-Glutamate receptor ... , 2種, 4分子 ACBD
#1: タンパク質 | 分子量: 102661.930 Da / 分子数: 2 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() ![]() #2: タンパク質 | 分子量: 96247.055 Da / 分子数: 2 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() ![]() |
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-タンパク質 , 2種, 4分子 GEIJ
#3: タンパク質 | 分子量: 22000.605 Da / 分子数: 2 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() ![]() #4: タンパク質 | 分子量: 43576.004 Da / 分子数: 2 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() ![]() |
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-糖 , 3種, 12分子 
#5: 多糖 | #6: 多糖 | 2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose #8: 糖 | ChemComp-NAG / |
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-非ポリマー , 3種, 52分子 




#7: 化合物 | ChemComp-E2Q / #9: 化合物 | ChemComp-PC1 / #10: 化合物 | |
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-詳細
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: GluA1/A2 heterotertramer in complex with auxiliary subunits TARP gamma 8 and CNIH2 タイプ: COMPLEX / Entity ID: #1-#4 / 由来: RECOMBINANT |
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分子量 | 値: 0.527 MDa |
由来(天然) | 生物種: ![]() ![]() |
由来(組換発現) | 生物種: ![]() |
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
CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION |
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3次元再構成 | 解像度: 3.4 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 218320 / 対称性のタイプ: POINT |