+
データを開く
-
基本情報
| 登録情報 | データベース: PDB / ID: 9oou | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| タイトル | Glycine/Glutamate/EU 1622-240 rGluN1a-2B NMDAR | |||||||||
要素 | (Glutamate receptor ionotropic, NMDA ...) x 2 | |||||||||
キーワード | MEMBRANE PROTEIN / Ion Channels / NMDAR | |||||||||
| 機能・相同性 | 機能・相同性情報cellular response to curcumin / cellular response to corticosterone stimulus / cellular response to magnesium starvation / sensory organ development / pons maturation / positive regulation of Schwann cell migration / regulation of cell communication / sensitization / EPHB-mediated forward signaling / Assembly and cell surface presentation of NMDA receptors ...cellular response to curcumin / cellular response to corticosterone stimulus / cellular response to magnesium starvation / sensory organ development / pons maturation / positive regulation of Schwann cell migration / regulation of cell communication / sensitization / 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 / response to other organism / protein localization to postsynaptic membrane / regulation of ARF protein signal transduction / fear response / apical dendrite / transmitter-gated monoatomic ion channel activity / positive regulation of inhibitory postsynaptic potential / suckling behavior / response to methylmercury / response to manganese ion / response to glycine / propylene metabolic process / response to carbohydrate / interleukin-1 receptor binding / cellular response to dsRNA / response to growth hormone / cellular response to lipid / negative regulation of dendritic spine maintenance / heterocyclic compound binding / positive regulation of glutamate secretion / regulation of monoatomic cation transmembrane transport / RAF/MAP kinase cascade / NMDA glutamate receptor activity / Synaptic adhesion-like molecules / voltage-gated monoatomic cation channel activity / response to glycoside / NMDA selective glutamate receptor complex / glutamate binding / ligand-gated sodium channel activity / neurotransmitter receptor complex / response to morphine / regulation of axonogenesis / regulation of dendrite morphogenesis / neuromuscular process / calcium ion transmembrane import into cytosol / protein heterotetramerization / male mating behavior / regulation of synapse assembly / glycine binding / response to amine / regulation of cAMP/PKA signal transduction / receptor clustering / small molecule binding / startle response / monoatomic cation transmembrane transport / parallel fiber to Purkinje cell synapse / positive regulation of reactive oxygen species biosynthetic process / behavioral response to pain / regulation of MAPK cascade / positive regulation of calcium ion transport into cytosol / cellular response to glycine / associative learning / regulation of postsynaptic membrane potential / action potential / extracellularly glutamate-gated ion channel activity / response to magnesium ion / excitatory synapse / response to electrical stimulus / monoatomic cation transport / positive regulation of dendritic spine maintenance / social behavior / regulation of neuronal synaptic plasticity / monoatomic ion channel complex / glutamate receptor binding / Unblocking of NMDA receptors, glutamate binding and activation / positive regulation of excitatory postsynaptic potential / long-term memory / detection of mechanical stimulus involved in sensory perception of pain / response to mechanical stimulus / synaptic cleft / neuron development / prepulse inhibition / phosphatase binding / positive regulation of synaptic transmission, glutamatergic / behavioral fear response / multicellular organismal response to stress / postsynaptic density, intracellular component / monoatomic cation channel activity / calcium ion homeostasis / response to fungicide / glutamate-gated receptor activity / regulation of neuron apoptotic process / cell adhesion molecule binding / regulation of long-term synaptic depression 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: 3.34 Å | |||||||||
データ登録者 | Steigerwald, R. / Furukawa, H. | |||||||||
| 資金援助 | 米国, 2件
| |||||||||
引用 | ジャーナル: Nature / 年: 2025タイトル: Mechanism of conductance control and neurosteroid binding in NMDA receptors. 著者: Hyunook Kang / Ruben Steigerwald / Elijah Z Ullman / Max Epstein / Srinu Paladugu / Dennis C Liotta / Stephen F Traynelis / Hiro Furukawa / ![]() 要旨: Ion-channel activity reflects a combination of open probability and unitary conductance. Many channels display subconductance states that modulate signalling strength, yet the structural mechanisms ...Ion-channel activity reflects a combination of open probability and unitary conductance. Many channels display subconductance states that modulate signalling strength, yet the structural mechanisms governing conductance levels remain incompletely understood. Here we report that conductance levels are controlled by the bending patterns of pore-forming transmembrane helices in the heterotetrameric neuronal channel GluN1a-2B N-methyl-D-aspartate receptor (NMDAR). Our single-particle electron cryomicroscopy (cryo-EM) analyses demonstrate that an endogenous neurosteroid and synthetic positive allosteric modulator (PAM), 24S-hydroxycholesterol (24S-HC), binds to a juxtamembrane pocket in the GluN2B subunit and stabilizes the fully open-gate conformation, where GluN1a M3 and GluN2B M3' pore-forming helices are bent to dilate the channel pore. By contrast, EU1622-240 binds to the same GluN2B juxtamembrane pocket and a distinct juxtamembrane pocket in GluN1a to stabilize a sub-open state whereby only the GluN2B M3' helix is bent. Consistent with the varying extents of gate opening, the single-channel recordings predominantly show full-conductance and subconductance states in the presence of 24S-HC and EU1622-240, respectively. Another class of neurosteroid, pregnenolone sulfate, engages a similar GluN2B pocket, but two molecules bind simultaneously, revealing a diverse neurosteroid recognition pattern. Our study identifies that the juxtamembrane pockets are critical structural hubs for modulating conductance levels in NMDAR. | |||||||||
| 履歴 |
|
-
構造の表示
| 構造ビューア | 分子: Molmil Jmol/JSmol |
|---|
-
ダウンロードとリンク
-
ダウンロード
| PDBx/mmCIF形式 | 9oou.cif.gz | 372.9 KB | 表示 | PDBx/mmCIF形式 |
|---|---|---|---|---|
| PDB形式 | pdb9oou.ent.gz | 表示 | PDB形式 | |
| PDBx/mmJSON形式 | 9oou.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
| 文書・要旨 | 9oou_validation.pdf.gz | 1.8 MB | 表示 | wwPDB検証レポート |
|---|---|---|---|---|
| 文書・詳細版 | 9oou_full_validation.pdf.gz | 1.8 MB | 表示 | |
| XML形式データ | 9oou_validation.xml.gz | 72.6 KB | 表示 | |
| CIF形式データ | 9oou_validation.cif.gz | 104.6 KB | 表示 | |
| アーカイブディレクトリ | https://data.pdbj.org/pub/pdb/validation_reports/oo/9oou ftp://data.pdbj.org/pub/pdb/validation_reports/oo/9oou | HTTPS FTP |
-関連構造データ
| 関連構造データ | ![]() 70673MC 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 ( |
|---|---|
| 類似構造データ | 類似検索 - 機能・相同性 F&H 検索 |
-
リンク
-
集合体
| 登録構造単位 | ![]()
|
|---|---|
| 1 |
|
-
要素
-Glutamate receptor ionotropic, NMDA ... , 2種, 4分子 ACBD
| #1: タンパク質 | 分子量: 95225.883 Da / 分子数: 2 変異: N61Q, N239D, N350Q, N471Q, N491Q, N771Q, R844Q, R845G, K846A 由来タイプ: 組換発現 / 由来: (組換発現) ![]() 発現宿主: ![]() 参照: UniProt: P35439 #2: タンパク質 | 分子量: 96498.977 Da / 分子数: 2 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() 発現宿主: ![]() 参照: UniProt: Q00960 |
|---|
-非ポリマー , 4種, 26分子 




| #3: 化合物 | | #4: 化合物 | ChemComp-A1AFT / ( 分子量: 478.310 Da / 分子数: 4 / 由来タイプ: 合成 / 式: C20H14BrF2N3O2S / タイプ: SUBJECT OF INVESTIGATION #5: 化合物 | #6: 水 | ChemComp-HOH / | |
|---|
-詳細
| 研究の焦点であるリガンドがあるか | Y |
|---|---|
| Has protein modification | Y |
-実験情報
-実験
| 実験 | 手法: 電子顕微鏡法 |
|---|---|
| EM実験 | 試料の集合状態: CELL / 3次元再構成法: 単粒子再構成法 |
-
試料調製
| 構成要素 | 名称: Di-heteromeric GluN1a-2B NMDA receptor / タイプ: CELL / Entity ID: #1-#2 / 由来: NATURAL |
|---|---|
| 由来(天然) | 生物種: ![]() |
| 緩衝液 | pH: 7.5 |
| 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 |
-
電子顕微鏡撮影
| 実験機器 | ![]() モデル: Titan Krios / 画像提供: FEI Company |
|---|---|
| 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): 2200 nm / 最小 デフォーカス(公称値): 600 nm |
| 撮影 | 電子線照射量: 58.4 e/Å2 フィルム・検出器のモデル: GATAN K3 BIOQUANTUM (6k x 4k) |
-
解析
| EMソフトウェア |
| ||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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: 3.34 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 382882 / 対称性のタイプ: POINT | ||||||||||||||||||||||||
| 精密化 | 最高解像度: 3.34 Å 立体化学のターゲット値: REAL-SPACE (WEIGHTED MAP SUM AT ATOM CENTERS) | ||||||||||||||||||||||||
| 拘束条件 |
|
ムービー
コントローラー
万見について






米国, 2件
引用
PDBj











FIELD EMISSION GUN