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基本情報
| 登録情報 | データベース: PDB / ID: 9c7e | ||||||
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| タイトル | Diheteromeric GluN1/GluN2A (delM653) in nanodisc complex with glycine, glutamate, and GNE-4123, open conformation, C2 symmetry | ||||||
要素 |
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キーワード | TRANSPORT PROTEIN / ion channel / NMDA / positive allosteric modulator / open pore conformation | ||||||
| 機能・相同性 | 機能・相同性情報neurotransmitter receptor transport, plasma membrane to endosome / regulation of response to alcohol / response to ammonium ion / receptor recycling / response to environmental enrichment / directional locomotion / positive regulation of Schwann cell migration / pons maturation / regulation of cell communication / EPHB-mediated forward signaling ...neurotransmitter receptor transport, plasma membrane to endosome / regulation of response to alcohol / response to ammonium ion / receptor recycling / response to environmental enrichment / directional locomotion / positive regulation of Schwann cell migration / pons maturation / regulation of cell communication / EPHB-mediated forward signaling / Assembly and cell surface presentation of NMDA receptors / response to hydrogen sulfide / auditory behavior / olfactory learning / conditioned taste aversion / dendritic branch / regulation of respiratory gaseous exchange / regulation of ARF protein signal transduction / response to other organism / protein localization to postsynaptic membrane / cellular response to magnesium ion / serotonin metabolic process / transmitter-gated monoatomic ion channel activity / positive regulation of inhibitory postsynaptic potential / response to methylmercury / suckling behavior / response to manganese ion / response to glycine / response to carbohydrate / propylene metabolic process / sleep / dendritic spine organization / cellular response to dsRNA / locomotion / regulation of NMDA receptor activity / cellular response to lipid / RAF/MAP kinase cascade / regulation of monoatomic cation transmembrane transport / NMDA glutamate receptor activity / Synaptic adhesion-like molecules / response to glycoside / voltage-gated monoatomic cation channel activity / NMDA selective glutamate receptor complex / glutamate binding / neurotransmitter receptor complex / ligand-gated sodium channel activity / response to morphine / glutamate receptor signaling pathway / regulation of axonogenesis / calcium ion transmembrane import into cytosol / neuromuscular process / regulation of dendrite morphogenesis / protein heterotetramerization / male mating behavior / regulation of synapse assembly / spinal cord development / response to amine / glycine binding / cellular response to zinc ion / startle response / positive regulation of reactive oxygen species biosynthetic process / dopamine metabolic process / parallel fiber to Purkinje cell synapse / response to lithium ion / monoatomic cation transmembrane transport / positive regulation of calcium ion transport into cytosol / cellular response to glycine / regulation of postsynaptic membrane potential / response to light stimulus / modulation of excitatory postsynaptic potential / action potential / associative learning / conditioned place preference / positive regulation of dendritic spine maintenance / monoatomic ion channel complex / regulation of neuronal synaptic plasticity / monoatomic cation transport / social behavior / positive regulation of protein targeting to membrane / glutamate receptor binding / Unblocking of NMDA receptors, glutamate binding and activation / long-term memory / synaptic cleft / neuron development / phosphatase binding / prepulse inhibition / positive regulation of synaptic transmission, glutamatergic / multicellular organismal response to stress / postsynaptic density, intracellular component / monoatomic cation channel activity / response to fungicide / calcium ion homeostasis / glutamate-gated receptor activity / regulation of neuron apoptotic process / cell adhesion molecule binding / cellular response to manganese ion / glutamate-gated calcium ion channel activity / presynaptic active zone membrane / neurogenesis / dendrite membrane 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: 3.22 Å | ||||||
データ登録者 | Jalali-Yazdi, F. / Kim, J. / Gouaux, E. | ||||||
| 資金援助 | 米国, 1件
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引用 | ジャーナル: Sci Adv / 年: 2025タイトル: Cryo-EM snapshots of NMDA receptor activation illuminate sequential rearrangements. 著者: Jamie A Abbott / Junhoe Kim / Beiying Liu / Gabriela K Popescu / Eric Gouaux / Farzad Jalali-Yazdi / ![]() 要旨: Canonical -methyl-d-aspartate receptors (NMDARs) are glutamate-gated ion channels with critical roles in the development and function of the nervous system. The excitatory currents they produce ...Canonical -methyl-d-aspartate receptors (NMDARs) are glutamate-gated ion channels with critical roles in the development and function of the nervous system. The excitatory currents they produce reflect stochastic transitions between multiple agonist-bound closed- and open-pore states. We leveraged the intrinsically high open probability () of NMDARs composed of GluN1 and GluN2A subunits, together with judiciously chosen mutants and ligands, to achieve conditions in which receptors had a near unity. Using single-particle cryo-electron microscopy (cryo-EM), we captured three activated receptor states, each with distinct conformations of the gate-forming M3 helices. Separately, we carried out single-channel electrophysiology, together with statistical modeling, to relate the cryo-EM structures to the gating reaction. NMDAR channel opening involves bending of the pore-forming M3 helices to produce a transient open-channel conformation, subsequently stabilized by new interactions between the D2-M3 linkers with the pre-M1 helices and the pre-M4 loops, to yield the stable open channel. | ||||||
| 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 | 9c7e.cif.gz | 656.9 KB | 表示 | PDBx/mmCIF形式 |
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| PDB形式 | pdb9c7e.ent.gz | 表示 | PDB形式 | |
| PDBx/mmJSON形式 | 9c7e.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/c7/9c7e ftp://data.pdbj.org/pub/pdb/validation_reports/c7/9c7e | HTTPS FTP |
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-関連構造データ
| 関連構造データ | ![]() 45279MC ![]() 9c7cC ![]() 9c7pC ![]() 9c7qC ![]() 9c7rC 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: 124759.219 Da / 分子数: 2 / 由来タイプ: 組換発現 由来: (組換発現) ![]() ![]() 遺伝子: Grin1, Nmdar1, GFP / 発現宿主: Homo sapiens (ヒト) / 参照: UniProt: P35439, UniProt: P42212#2: タンパク質 | 分子量: 126356.180 Da / 分子数: 2 / 由来タイプ: 組換発現 由来: (組換発現) ![]() ![]() 遺伝子: Grin2a, GFP / 発現宿主: Homo sapiens (ヒト) / 参照: UniProt: Q00959, UniProt: P42212#3: 化合物 | 分子量: 427.520 Da / 分子数: 2 / 由来タイプ: 合成 / 式: C21H25N5O3S / タイプ: SUBJECT OF INVESTIGATION #4: 化合物 | ChemComp-Y01 / #5: 化合物 | 研究の焦点であるリガンドがあるか | Y | 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: Diheteromeric NMDA receptor GluN1/GluN2A in nanodisc, in complex with glycine, glutamate, and GNE-4123, processed in C2 symmetry タイプ: COMPLEX / Entity ID: #1-#2 / 由来: RECOMBINANT | ||||||||||||
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| 分子量 | 値: 0.502 MDa / 実験値: NO | ||||||||||||
| 由来(天然) |
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| 由来(組換発現) | 生物種: Homo sapiens (ヒト) | ||||||||||||
| 緩衝液 | pH: 9 | ||||||||||||
| 試料 | 濃度: 2 mg/ml / 包埋: NO / シャドウイング: NO / 染色: NO / 凍結: YES | ||||||||||||
| 試料支持 | 詳細: 15 mA / グリッドの材料: GOLD / グリッドのサイズ: 300 divisions/in. / グリッドのタイプ: Quantifoil R2/1 | ||||||||||||
| 急速凍結 | 装置: FEI VITROBOT MARK IV / 凍結剤: ETHANE / 湿度: 100 % / 凍結前の試料温度: 291 K |
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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 / 最大 デフォーカス(公称値): 2000 nm / 最小 デフォーカス(公称値): 800 nm |
| 撮影 | 平均露光時間: 1.8 sec. / 電子線照射量: 53 e/Å2 フィルム・検出器のモデル: GATAN K2 QUANTUM (4k x 4k) 実像数: 8048 |
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解析
| EMソフトウェア |
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| CTF補正 | タイプ: NONE | ||||||||||||||||||||||||
| 対称性 | 点対称性: C2 (2回回転対称) | ||||||||||||||||||||||||
| 3次元再構成 | 解像度: 3.22 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 179000 / 対称性のタイプ: POINT | ||||||||||||||||||||||||
| 原子モデル構築 | プロトコル: RIGID BODY FIT / 空間: REAL | ||||||||||||||||||||||||
| 拘束条件 |
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万見について







米国, 1件
引用







PDBj






Homo sapiens (ヒト)


FIELD EMISSION GUN