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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: 9unk | ||||||||||||||||||
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| タイトル | native NMDA receptor-GluN1/N2B in the closed state | ||||||||||||||||||
要素 | (Glutamate receptor ionotropic, NMDA ...) x 2 | ||||||||||||||||||
キーワード | MEMBRANE PROTEIN / native / NMDA receptor / ionotropic ion channel / excitatory neurotransmitter | ||||||||||||||||||
| 機能・相同性 | 機能・相同性情報Assembly and cell surface presentation of NMDA receptors / Synaptic adhesion-like molecules / EPHB-mediated forward signaling / Unblocking of NMDA receptors, glutamate binding and activation / RAF/MAP kinase cascade / sensory organ development / pons maturation / regulation of cAMP/PKA signal transduction / regulation of cell communication / positive regulation of Schwann cell migration ...Assembly and cell surface presentation of NMDA receptors / Synaptic adhesion-like molecules / EPHB-mediated forward signaling / Unblocking of NMDA receptors, glutamate binding and activation / RAF/MAP kinase cascade / sensory organ development / pons maturation / regulation of cAMP/PKA signal transduction / regulation of cell communication / positive regulation of Schwann cell migration / sensitization / olfactory learning / dendritic branch / conditioned taste aversion / fear response / regulation of respiratory gaseous exchange / protein localization to postsynaptic membrane / apical dendrite / regulation of ARF protein signal transduction / transmitter-gated monoatomic ion channel activity / suckling behavior / positive regulation of inhibitory postsynaptic potential / interleukin-1 receptor binding / propylene metabolic process / response to glycine / negative regulation of dendritic spine maintenance / heterocyclic compound binding / positive regulation of glutamate secretion / regulation of monoatomic cation transmembrane transport / NMDA glutamate receptor activity / NMDA selective glutamate receptor complex / voltage-gated monoatomic cation channel activity / glutamate binding / neurotransmitter receptor complex / ligand-gated sodium channel activity / regulation of axonogenesis / calcium ion transmembrane import into cytosol / neuromuscular process / transport vesicle membrane / response to morphine / regulation of dendrite morphogenesis / protein heterotetramerization / male mating behavior / regulation of synapse assembly / glycine binding / small molecule binding / receptor clustering / startle response / ligand-gated monoatomic ion channel activity / positive regulation of reactive oxygen species biosynthetic process / parallel fiber to Purkinje cell synapse / behavioral response to pain / monoatomic cation transmembrane transport / regulation of MAPK cascade / monoatomic ion channel complex / positive regulation of calcium ion transport into cytosol / regulation of postsynaptic membrane potential / action potential / extracellularly glutamate-gated ion channel activity / associative learning / positive regulation of dendritic spine maintenance / regulation of neuronal synaptic plasticity / social behavior / monoatomic cation transport / glutamate receptor binding / detection of mechanical stimulus involved in sensory perception of pain / prepulse inhibition / long-term memory / positive regulation of synaptic transmission / phosphatase binding / positive regulation of synaptic transmission, glutamatergic / postsynaptic density, intracellular component / behavioral fear response / monoatomic cation channel activity / synaptic cleft / calcium ion homeostasis / glutamate-gated receptor activity / regulation of long-term synaptic depression / D2 dopamine receptor binding / glutamate-gated calcium ion channel activity / presynaptic active zone membrane / cell adhesion molecule binding / dendrite membrane / ionotropic glutamate receptor binding / excitatory synapse / sensory perception of pain / ionotropic glutamate receptor signaling pathway / ligand-gated monoatomic ion channel activity involved in regulation of presynaptic membrane potential / protein serine/threonine kinase binding / regulation of neuron apoptotic process / protein tyrosine kinase binding / synaptic membrane / positive regulation of excitatory postsynaptic potential / sodium ion transmembrane transport / hippocampal mossy fiber to CA3 synapse / response to amphetamine / learning / adult locomotory behavior / excitatory postsynaptic potential / regulation of membrane potential 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: 3.37 Å | ||||||||||||||||||
データ登録者 | Yu, J. / Xu, R.S. / Ge, J.P. | ||||||||||||||||||
| 資金援助 | 中国, 1件
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引用 | ジャーナル: Nature / 年: 2026タイトル: Conformational diversity and fully opening mechanism of native NMDA receptor. 著者: Ruisheng Xu / Qiqi Jiang / Hongwei Xu / Lu Zhang / Xiangzi Hu / Zizhuo Lu / Huaqin Deng / Haolin Xiong / Sensen Zhang / Zhongwen Chen / Yifan Ge / Zhengjiang Zhu / Yaoyang Zhang / Yelin Chen ...著者: Ruisheng Xu / Qiqi Jiang / Hongwei Xu / Lu Zhang / Xiangzi Hu / Zizhuo Lu / Huaqin Deng / Haolin Xiong / Sensen Zhang / Zhongwen Chen / Yifan Ge / Zhengjiang Zhu / Yaoyang Zhang / Yelin Chen / Jingpeng Ge / Jie Yu / ![]() 要旨: N-methyl-D-aspartate receptors (NMDARs) are glutamate-gated ion channels that mediate excitatory neurotransmission throughout the brain. As obligate heterotetramers, their activation requires the ...N-methyl-D-aspartate receptors (NMDARs) are glutamate-gated ion channels that mediate excitatory neurotransmission throughout the brain. As obligate heterotetramers, their activation requires the binding of both glycine and glutamate. Although recent structural studies have provided insights into endogenous receptors from select brain regions, most previous work has relied on recombinant receptors and engineered constructs, which limits our understanding of native NMDARs across the whole brain. Here we identify and resolve ten distinct native NMDAR assemblies from the whole-brain tissue of female C57BL/6 mice using immunoaffinity purification, single-molecule total internal reflection fluorescence microscopy and cryo-electron microscopy. Analyses of the GluN1-GluN2A(S1), GluN1-GluN2A(S2), GluN1-GluN2A(S3), GluN1-GluN2B, GluN1-GluN2A-GluN2B(S1), GluN1-GluN2A-GluN2B(S2), GluN1-GluN2A-GluNX(S1), GluN1-GluN2A-GluNX(S2), GluN1-GluN2B-GluNX and GluN1-GluNX structures reveal that GluN2A is the most prevalent subunit across assemblies. Moreover, the substantial conformational flexibility observed in the GluN2A amino-terminal domain may explain its fast kinetics and dominant role in gating. Dynamic movements of S-ketamine were also captured at the channel vestibule, as was pore dilation in both the GluN1 and GluN2B subunits of a native GluN1-GluN2B receptor. The latter observation represents a previously unknown fully open state of NMDAR. Our large collection of heterogeneous NMDAR structures from whole brain reveals previously unrecognized properties of conformational diversity and channel dilation. | ||||||||||||||||||
| 履歴 |
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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 | 9unk.cif.gz | 607.2 KB | 表示 | PDBx/mmCIF形式 |
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| PDB形式 | pdb9unk.ent.gz | 478.5 KB | 表示 | PDB形式 |
| PDBx/mmJSON形式 | 9unk.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/un/9unk ftp://data.pdbj.org/pub/pdb/validation_reports/un/9unk | HTTPS FTP |
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-関連構造データ
| 関連構造データ | ![]() 64354MC ![]() 9un2C ![]() 9un3C ![]() 9unjC ![]() 9unmC ![]() 9unnC ![]() 9unoC ![]() 9unpC ![]() 9unqC ![]() 9unrC C: 同じ文献を引用 ( M: このデータのモデリングに利用したマップデータ |
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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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| 1 |
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要素
-Glutamate receptor ionotropic, NMDA ... , 2種, 4分子 ACBD
| #1: タンパク質 | 分子量: 92408.602 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: 90757.672 Da / 分子数: 2 / 由来タイプ: 天然 / 由来: (天然) ![]() |
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-糖 , 1種, 32分子 
| #3: 糖 | ChemComp-NAG / |
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-非ポリマー , 3種, 5分子 




| #4: 化合物 | | #5: 化合物 | #6: 化合物 | ChemComp-JC9 / ( | |
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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 | 名称: native NMDA receptor-GluN1/N2B in the closed state / タイプ: COMPLEX / Entity ID: #1-#2 / 由来: NATURAL |
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| 由来(天然) | 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: 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: BRIGHT FIELD / 最大 デフォーカス(公称値): 2000 nm / 最小 デフォーカス(公称値): 1000 nm |
| 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
| EMソフトウェア |
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| CTF補正 | タイプ: NONE | ||||||||||||||||||||||||
| 3次元再構成 | 解像度: 3.37 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 169373 / 対称性のタイプ: POINT | ||||||||||||||||||||||||
| 精密化 | 最高解像度: 3.37 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






中国, 1件
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FIELD EMISSION GUN