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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: 9nr9 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| タイトル | The structure of GluA1/A4 LBD-TMD with 2 TARPs | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
要素 |
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キーワード | MEMBRANE PROTEIN / iGluR / CP-AMPA receptors | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 機能・相同性 | 機能・相同性情報Cargo concentration in the ER / Presynaptic depolarization and calcium channel opening / axonal spine / positive regulation of locomotion involved in locomotory behavior / COPII-mediated vesicle transport / positive regulation of membrane potential / eye blink reflex / positive regulation of protein localization to basolateral plasma membrane / cellular response to ammonium ion / response to sucrose ...Cargo concentration in the ER / Presynaptic depolarization and calcium channel opening / axonal spine / positive regulation of locomotion involved in locomotory behavior / COPII-mediated vesicle transport / positive regulation of membrane potential / eye blink reflex / positive regulation of protein localization to basolateral plasma membrane / cellular response to ammonium ion / response to sucrose / myosin V binding / cerebellar mossy fiber / LGI-ADAM interactions / neuron spine / Trafficking of AMPA receptors / postsynaptic neurotransmitter receptor diffusion trapping / proximal dendrite / regulation of AMPA receptor activity / kainate selective glutamate receptor complex / response to arsenic-containing substance / regulation of monoatomic ion transmembrane transport / channel regulator activity / cellular response to L-glutamate / cellular response to dsRNA / regulation of synapse structure or activity / membrane hyperpolarization / ligand-gated calcium channel activity / dendritic spine membrane / nervous system process / Synaptic adhesion-like molecules / beta-2 adrenergic receptor binding / long-term synaptic depression / protein targeting to membrane / cellular response to peptide hormone stimulus / voltage-gated calcium channel complex / cellular response to amine stimulus / peptide hormone receptor binding / response to psychosocial stress / response to morphine / Activation of AMPA receptors / neurotransmitter receptor localization to postsynaptic specialization membrane / spinal cord development / perisynaptic space / neuronal cell body membrane / protein kinase A binding / neuromuscular junction development / Trafficking of GluR2-containing AMPA receptors / negative regulation of smooth muscle cell apoptotic process / response to lithium ion / AMPA glutamate receptor activity / transmission of nerve impulse / behavioral response to pain / immunoglobulin binding / adenylate cyclase binding / asymmetric synapse / response to electrical stimulus / AMPA glutamate receptor complex / cellular response to glycine / regulation of receptor recycling / membrane depolarization / ionotropic glutamate receptor complex / Unblocking of NMDA receptors, glutamate binding and activation / G-protein alpha-subunit binding / glutamate receptor binding / conditioned place preference / positive regulation of synaptic transmission / long-term memory / regulation of postsynaptic membrane neurotransmitter receptor levels / voltage-gated calcium channel activity / postsynaptic density, intracellular component / response to fungicide / neuronal action potential / positive regulation of synaptic transmission, glutamatergic / glutamate-gated receptor activity / cellular response to brain-derived neurotrophic factor stimulus / somatodendritic compartment / glutamate-gated calcium ion channel activity / presynaptic active zone membrane / synapse assembly / excitatory synapse / ionotropic glutamate receptor binding / dendrite membrane / ligand-gated monoatomic ion channel activity involved in regulation of presynaptic membrane potential / positive regulation of excitatory postsynaptic potential / hippocampal mossy fiber to CA3 synapse / dendritic shaft / synaptic membrane / response to cocaine / PDZ domain binding / calcium channel regulator activity / neuromuscular junction / cellular response to amino acid stimulus / synaptic transmission, glutamatergic / regulation of membrane potential / transmitter-gated monoatomic ion channel activity involved in regulation of postsynaptic membrane potential / response to nutrient levels / cerebral cortex development / response to calcium ion / regulation of synaptic plasticity / receptor internalization 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: 4.22 Å | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
データ登録者 | Fang, C.L. / Gouaux, E. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 資金援助 | 米国, 1件
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引用 | ジャーナル: Nature / 年: 2025タイトル: Gating and noelin clustering of native Ca-permeable AMPA receptors. 著者: Chengli Fang / Cathy J Spangler / Jumi Park / Natalie Sheldon / Laurence O Trussell / Eric Gouaux / ![]() 要旨: AMPA-type ionotropic glutamate receptors (AMPARs) are integral to fast excitatory synaptic transmission and have vital roles in synaptic plasticity, motor coordination, learning and memory. Whereas ...AMPA-type ionotropic glutamate receptors (AMPARs) are integral to fast excitatory synaptic transmission and have vital roles in synaptic plasticity, motor coordination, learning and memory. Whereas extensive structural studies have been conducted on recombinant AMPARs and native calcium-impermeable (CI)-AMPARs alongside their auxiliary proteins, the molecular architecture of native calcium-permeable (CP)-AMPARs has remained undefined. Here, to determine the subunit composition, physiological architecture and gating mechanisms of CP-AMPARs, we visualize these receptors, immunoaffinity purified from rat cerebella, and resolve their structures using cryo-electron microscopy (cryo-EM). Our results indicate that the predominant assembly consists of GluA1 and GluA4 subunits, with the GluA4 subunit occupying the B and D positions, and auxiliary subunits, including transmembrane AMPAR regulatory proteins (TARPs) located at the B' and D' positions, and cornichon homologues (CNIHs) or TARPs located at the A' and C' positions. Furthermore, we resolved the structure of the noelin (NOE1)-GluA1-GluA4 complex, in which NOE1 specifically binds to the GluA4 subunit at the B and D positions. Notably, NOE1 stabilizes the amino-terminal domain layer without affecting gating properties of the receptor. NOE1 contributes to AMPAR function by forming dimeric AMPAR assemblies that are likely to engage in extracellular networks, clustering receptors in synaptic environments and modulating receptor responsiveness to synaptic inputs. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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構造の表示
| 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 | 9nr9.cif.gz | 326 KB | 表示 | PDBx/mmCIF形式 |
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| PDB形式 | pdb9nr9.ent.gz | 253.8 KB | 表示 | PDB形式 |
| PDBx/mmJSON形式 | 9nr9.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/nr/9nr9 ftp://data.pdbj.org/pub/pdb/validation_reports/nr/9nr9 | HTTPS FTP |
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-関連構造データ
| 関連構造データ | ![]() 49726MC ![]() 9nr6C ![]() 9nr7C ![]() 9nr8C ![]() 9nraC M: このデータのモデリングに利用したマップデータ C: 同じ文献を引用 ( |
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| 類似構造データ | 類似検索 - 機能・相同性 F&H 検索 |
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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
| #1: タンパク質 | 分子量: 22589.975 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: 47879.855 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: 47173.348 Da / 分子数: 2 / 由来タイプ: 天然 / 由来: (天然) ![]() #4: 化合物 | ChemComp-ZK1 / {[ 研究の焦点であるリガンドがあるか | N | 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: CP-AMPA receptors / タイプ: COMPLEX / Entity ID: #1-#3 / 由来: NATURAL |
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| 由来(天然) | 生物種: ![]() |
| 緩衝液 | pH: 8 |
| 試料 | 濃度: 0.1 mg/ml / 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: TFS 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: OTHER / 最大 デフォーカス(公称値): 2200 nm / 最小 デフォーカス(公称値): 1200 nm |
| 撮影 | 電子線照射量: 50 e/Å2 フィルム・検出器のモデル: FEI FALCON IV (4k x 4k) |
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解析
| EMソフトウェア |
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| CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
| 対称性 | 点対称性: C2 (2回回転対称) | ||||||||||||||||||||||||
| 3次元再構成 | 解像度: 4.22 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 27128 / 対称性のタイプ: POINT | ||||||||||||||||||||||||
| 精密化 | 最高解像度: 4.22 Å 立体化学のターゲット値: REAL-SPACE (WEIGHTED MAP SUM AT ATOM CENTERS) | ||||||||||||||||||||||||
| 拘束条件 |
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万見について






米国, 1件
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FIELD EMISSION GUN