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基本情報
登録情報 | データベース: EMDB / ID: EMD-3352 | |||||||||
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タイトル | Activation of NMDA receptors and the mechanism of inhibition by ifenprodil - Active confirmation | |||||||||
![]() | Active Conformation - Unsharpened, unmasked map. | |||||||||
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![]() | NMDA receptor / glutamate receptor / GluN1 / GluN2B / ion channel | |||||||||
機能・相同性 | ![]() 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 / regulation of cAMP/PKA signal transduction / EPHB-mediated forward signaling ...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 / regulation of cAMP/PKA signal transduction / EPHB-mediated forward signaling / auditory behavior / Assembly and cell surface presentation of NMDA receptors / olfactory learning / conditioned taste aversion / dendritic branch / response to hydrogen sulfide / regulation of respiratory gaseous exchange / response to other organism / protein localization to postsynaptic membrane / apical dendrite / regulation of ARF protein signal transduction / response to methylmercury / fear response / transmitter-gated monoatomic ion channel activity / positive regulation of inhibitory postsynaptic potential / response to glycine / propylene metabolic process / response to carbohydrate / interleukin-1 receptor binding / negative regulation of dendritic spine maintenance / cellular response to dsRNA / cellular response to lipid / positive regulation of glutamate secretion / response to growth hormone / Synaptic adhesion-like molecules / regulation of monoatomic cation transmembrane transport / NMDA glutamate receptor activity / RAF/MAP kinase cascade / voltage-gated monoatomic cation channel activity / response to manganese ion / neurotransmitter receptor complex / NMDA selective glutamate receptor complex / ligand-gated sodium channel activity / calcium ion transmembrane import into cytosol / response to morphine / glutamate binding / regulation of axonogenesis / neuromuscular process / regulation of dendrite morphogenesis / protein heterotetramerization / regulation of synapse assembly / male mating behavior / heterocyclic compound binding / glycine binding / positive regulation of reactive oxygen species biosynthetic process / parallel fiber to Purkinje cell synapse / positive regulation of calcium ion transport into cytosol / receptor clustering / suckling behavior / regulation of postsynaptic membrane potential / response to amine / small molecule binding / startle response / monoatomic cation transmembrane transport / associative learning / social behavior / : / behavioral response to pain / response to magnesium ion / regulation of MAPK cascade / regulation of neuronal synaptic plasticity / action potential / cellular response to glycine / monoatomic cation transport / extracellularly glutamate-gated ion channel activity / positive regulation of dendritic spine maintenance / excitatory synapse / positive regulation of excitatory postsynaptic potential / monoatomic ion channel complex / Unblocking of NMDA receptors, glutamate binding and activation / long-term memory / cellular response to manganese ion / behavioral fear response / postsynaptic density, intracellular component / glutamate receptor binding / neuron development / synaptic cleft / prepulse inhibition / multicellular organismal response to stress / detection of mechanical stimulus involved in sensory perception of pain / phosphatase binding / response to electrical stimulus / monoatomic cation channel activity / response to mechanical stimulus / calcium ion homeostasis / glutamate-gated receptor activity / response to fungicide / D2 dopamine receptor binding / regulation of neuron apoptotic process / ionotropic glutamate receptor binding 類似検索 - 分子機能 | |||||||||
生物種 | ![]() ![]() | |||||||||
手法 | 単粒子再構成法 / クライオ電子顕微鏡法 / 解像度: 6.8 Å | |||||||||
![]() | Tajima N / Karakas E / Grant T / Simorowski N / Diaz-Avalos R / Grigorieff N / Furukawa H | |||||||||
![]() | ![]() タイトル: Activation of NMDA receptors and the mechanism of inhibition by ifenprodil. 著者: Nami Tajima / Erkan Karakas / Timothy Grant / Noriko Simorowski / Ruben Diaz-Avalos / Nikolaus Grigorieff / Hiro Furukawa / ![]() 要旨: The physiology of N-methyl-d-aspartate (NMDA) receptors is fundamental to brain development and function. NMDA receptors are ionotropic glutamate receptors that function as heterotetramers composed ...The physiology of N-methyl-d-aspartate (NMDA) receptors is fundamental to brain development and function. NMDA receptors are ionotropic glutamate receptors that function as heterotetramers composed mainly of GluN1 and GluN2 subunits. Activation of NMDA receptors requires binding of neurotransmitter agonists to a ligand-binding domain (LBD) and structural rearrangement of an amino-terminal domain (ATD). Recent crystal structures of GluN1-GluN2B NMDA receptors bound to agonists and an allosteric inhibitor, ifenprodil, represent the allosterically inhibited state. However, how the ATD and LBD move to activate the NMDA receptor ion channel remains unclear. Here we applied X-ray crystallography, single-particle electron cryomicroscopy and electrophysiology to rat NMDA receptors to show that, in the absence of ifenprodil, the bi-lobed structure of GluN2 ATD adopts an open conformation accompanied by rearrangement of the GluN1-GluN2 ATD heterodimeric interface, altering subunit orientation in the ATD and LBD and forming an active receptor conformation that gates the ion channel. | |||||||||
履歴 |
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構造の表示
ムービー |
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構造ビューア | EMマップ: ![]() ![]() ![]() |
添付画像 |
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ダウンロードとリンク
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マップデータ | ![]() | 19.9 MB | ![]() | |
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ヘッダ (付随情報) | ![]() ![]() | 11.8 KB 11.8 KB | 表示 表示 | ![]() |
画像 | ![]() | 463.1 KB | ||
アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
-検証レポート
文書・要旨 | ![]() | 250.1 KB | 表示 | ![]() |
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文書・詳細版 | ![]() | 249.2 KB | 表示 | |
XML形式データ | ![]() | 6.1 KB | 表示 | |
アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
-関連構造データ
関連構造データ | ![]() 5fxgMC ![]() 3353C ![]() 3354C ![]() 3355C ![]() 3356C ![]() 5b3jC ![]() 5fxhC ![]() 5fxiC ![]() 5fxjC ![]() 5fxkC M: このマップから作成された原子モデル C: 同じ文献を引用 ( |
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類似構造データ |
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EMDBのページ | ![]() ![]() |
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「今月の分子」の関連する項目 |
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マップ
ファイル | ![]() | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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注釈 | Active Conformation - Unsharpened, unmasked map. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
投影像・断面図 | 画像のコントロール
画像は Spider により作成 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
ボクセルのサイズ | X=Y=Z: 1.31 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
密度 |
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対称性 | 空間群: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
詳細 | EMDB XML:
CCP4マップ ヘッダ情報:
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-添付データ
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試料の構成要素
-全体 : NMDA Receptor
全体 | 名称: NMDA Receptor |
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要素 |
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-超分子 #1000: NMDA Receptor
超分子 | 名称: NMDA Receptor / タイプ: sample / ID: 1000 詳細: The sample was purified in the presence of agonists Glycine and L-glutamate. 集合状態: One heterotetramer of 2 GluN1 and 2 GluN2B subunits Number unique components: 2 |
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分子量 | 理論値: 370 KDa |
-分子 #1: N-methyl-D-aspartate receptor GluN1
分子 | 名称: N-methyl-D-aspartate receptor GluN1 / タイプ: protein_or_peptide / ID: 1 / Name.synonym: GluN1, NR1 / コピー数: 2 / 集合状態: dimer / 組換発現: Yes |
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由来(天然) | 生物種: ![]() ![]() |
分子量 | 理論値: 93 KDa |
組換発現 | 生物種: ![]() ![]() 組換株: Sf9 CRL-1711 / 組換細胞: Sf9 / 組換プラスミド: Modified pFL and pUCDM |
配列 | UniProtKB: Glutamate receptor ionotropic, NMDA 1 |
-分子 #2: N-methyl-D-aspartate receptor GluN2B
分子 | 名称: N-methyl-D-aspartate receptor GluN2B / タイプ: protein_or_peptide / ID: 2 / Name.synonym: GluN2B, NR2B / コピー数: 2 / 集合状態: Dimer / 組換発現: Yes |
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由来(天然) | 生物種: ![]() ![]() |
分子量 | 理論値: 92 KDa |
組換発現 | 生物種: ![]() ![]() 組換株: Sf9 CRL-1711 / 組換細胞: Sf9 / 組換プラスミド: Modified pFL and pUCDM |
配列 | UniProtKB: Glutamate receptor ionotropic, NMDA 2B |
-実験情報
-構造解析
手法 | クライオ電子顕微鏡法 |
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![]() | 単粒子再構成法 |
試料の集合状態 | particle |
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試料調製
濃度 | 2 mg/mL |
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緩衝液 | pH: 7 詳細: 200 mM NaCl, 20 mM HEPES pH 7.0, 10 mM Glycine, 10 mM L-Glutamate, 0.002% MNG-3 |
グリッド | 詳細: C-flat 1.2/1.3 Cu 400 |
凍結 | 凍結剤: ETHANE / チャンバー内湿度: 90 % / 装置: FEI VITROBOT MARK II / 手法: 3s Blot time |
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電子顕微鏡法
顕微鏡 | FEI TITAN KRIOS |
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アライメント法 | Legacy - Electron beam tilt params: 0 |
詳細 | 21s exposure into 70 frames, with an exposure rate of ~8 electrons/pixel/s on the camera. |
日付 | 2015年8月10日 |
撮影 | カテゴリ: CCD フィルム・検出器のモデル: GATAN K2 SUMMIT (4k x 4k) 実像数: 1200 / 平均電子線量: 100 e/Å2 |
電子線 | 加速電圧: 300 kV / 電子線源: ![]() |
電子光学系 | 倍率(補正後): 38168 / 照射モード: FLOOD BEAM / 撮影モード: BRIGHT FIELD / Cs: 2.7 mm / 最大 デフォーカス(公称値): 2.5 µm / 最小 デフォーカス(公称値): 1.0 µm / 倍率(公称値): 22500 |
試料ステージ | 試料ホルダーモデル: FEI TITAN KRIOS AUTOGRID HOLDER |
実験機器 | ![]() モデル: Titan Krios / 画像提供: FEI Company |
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画像解析
CTF補正 | 詳細: Each Particle |
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最終 再構成 | 想定した対称性 - 点群: C2 (2回回転対称) / アルゴリズム: OTHER / 解像度のタイプ: BY AUTHOR / 解像度: 6.8 Å / 解像度の算出法: OTHER / ソフトウェア - 名称: Unblur, CTFFIND4, FREALIGN 詳細: The highest resolution included in the refinement was 12A. 使用した粒子像数: 12000 |
-原子モデル構築 1
初期モデル | PDB ID: Chain - #0 - Chain ID: A / Chain - #1 - Chain ID: B / Chain - #2 - Chain ID: C / Chain - #3 - Chain ID: D |
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ソフトウェア | 名称: ![]() |
詳細 | The individual domains were initially fitted using coot and real space refinement was performed using Phenix |
精密化 | 空間: REAL / プロトコル: FLEXIBLE FIT / 当てはまり具合の基準: Real Space |
得られたモデル | ![]() PDB-5fxg: |