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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 | |||||||||
要素 |
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キーワード | MEMBRANE PROTEIN / AMPAR / ion channels / neurotransmission | |||||||||
| 機能・相同性 | 機能・相同性情報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 / axonal spine / positive regulation of locomotion involved in locomotory behavior / COPII-mediated vesicle transport / localization within membrane / positive regulation of membrane potential ...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 / axonal spine / positive regulation of locomotion involved in locomotory behavior / COPII-mediated vesicle transport / localization within membrane / positive regulation of membrane potential / cellular response to ammonium ion / response to sucrose / L-type voltage-gated calcium channel complex / myosin V binding / LGI-ADAM interactions / neuron spine / Trafficking of AMPA receptors / postsynaptic neurotransmitter receptor diffusion trapping / proximal dendrite / regulation of AMPA receptor activity / protein phosphatase 2B binding / response to arsenic-containing substance / regulation of monoatomic ion transmembrane transport / channel regulator activity / cellular response to L-glutamate / regulation of NMDA receptor activity / cellular response to dsRNA / ligand-gated calcium channel activity / dendritic spine membrane / beta-2 adrenergic receptor binding / Synaptic adhesion-like molecules / long-term synaptic depression / cellular response to peptide hormone stimulus / spine synapse / dendritic spine neck / dendritic spine cytoplasm / dendritic spine head / cellular response to amine stimulus / peptide hormone receptor binding / response to psychosocial stress / Activation of AMPA receptors / ligand-gated monoatomic cation channel activity / response to morphine / perisynaptic space / spinal cord development / neuronal cell body membrane / protein kinase A binding / Trafficking of GluR2-containing AMPA receptors / response to lithium ion / AMPA glutamate receptor activity / AMPA glutamate receptor clustering / transmission of nerve impulse / kainate selective glutamate receptor activity / immunoglobulin binding / adenylate cyclase binding / behavioral response to pain / AMPA glutamate receptor complex / regulation of receptor recycling / extracellularly glutamate-gated ion channel activity / cellular response to glycine / response to electrical stimulus / ionotropic glutamate receptor complex / asymmetric synapse / Unblocking of NMDA receptors, glutamate binding and activation / G-protein alpha-subunit binding / glutamate receptor binding / positive regulation of synaptic transmission / conditioned place preference / regulation of postsynaptic membrane neurotransmitter receptor levels / long-term memory / voltage-gated calcium channel activity / postsynaptic density, intracellular component / response to fungicide / regulation of synaptic transmission, glutamatergic / neuronal action potential / extracellular ligand-gated monoatomic ion channel activity / cytoskeletal protein binding / vesicle-mediated transport / glutamate-gated receptor activity / cellular response to brain-derived neurotrophic factor stimulus / regulation of long-term synaptic depression / positive regulation of synaptic transmission, glutamatergic / somatodendritic compartment / glutamate-gated calcium ion channel activity / presynaptic active zone membrane / synapse assembly / excitatory synapse / ionotropic glutamate receptor signaling pathway / ionotropic glutamate receptor binding / dendrite cytoplasm / dendrite membrane / ligand-gated monoatomic ion channel activity involved in regulation of presynaptic membrane potential / positive regulation of excitatory postsynaptic potential / dendritic shaft / SNARE binding / synaptic membrane / PDZ domain binding / response to cocaine / calcium channel regulator activity / neuromuscular junction 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 | |||||||||
データ登録者 | Zhang, D. / Watson, J.F. / Matthews, P.M. / Cais, O. / Greger, I.H. | |||||||||
| 資金援助 | 2件
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引用 | ジャーナル: Nature / 年: 2021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
| ムービー |
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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 | 7oca.cif.gz | 698.8 KB | 表示 | PDBx/mmCIF形式 |
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| PDB形式 | pdb7oca.ent.gz | 541.7 KB | 表示 | PDB形式 |
| PDBx/mmJSON形式 | 7oca.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/oc/7oca ftp://data.pdbj.org/pub/pdb/validation_reports/oc/7oca | 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) ![]() Homo sapiens (ヒト) / 参照: UniProt: P19490#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) ![]() Homo sapiens (ヒト) / 参照: UniProt: P19491 |
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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) ![]() Homo sapiens (ヒト) / 参照: UniProt: Q5BJU5#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) ![]() Homo sapiens (ヒト) / 参照: UniProt: Q8VHW5 |
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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: Homo sapiens (ヒト) |
| 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: FIELD EMISSION GUN / 加速電圧: 300 kV / 照射モード: FLOOD BEAM |
| 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 |
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引用

UCSF Chimera















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Homo sapiens (ヒト)
