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基本情報
登録情報 | データベース: PDB / ID: 5fxh | ||||||
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タイトル | GluN1b-GluN2B NMDA receptor in non-active-1 conformation | ||||||
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![]() | TRANSPORT PROTEIN / SIGNALING PROTEIN / 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 / positive regulation of inhibitory postsynaptic potential / protein localization to postsynaptic membrane / apical dendrite / regulation of ARF protein signal transduction / response to methylmercury / fear response / transmitter-gated monoatomic ion channel activity / response to glycine / propylene metabolic process / response to carbohydrate / cellular response to dsRNA / interleukin-1 receptor binding / negative regulation of dendritic spine maintenance / 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 / response to morphine / calcium ion transmembrane import into cytosol / 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 / receptor clustering / parallel fiber to Purkinje cell synapse / positive regulation of calcium ion transport into cytosol / suckling behavior / regulation of postsynaptic membrane potential / response to amine / small molecule binding / startle response / social behavior / monoatomic cation transmembrane transport / associative learning / : / behavioral response to pain / response to magnesium ion / regulation of MAPK cascade / regulation of neuronal synaptic plasticity / action potential / cellular response to glycine / extracellularly glutamate-gated ion channel activity / monoatomic cation transport / excitatory synapse / positive regulation of excitatory postsynaptic potential / positive regulation of dendritic spine maintenance / 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 / glutamate-gated receptor activity / response to mechanical stimulus / calcium ion homeostasis / response to fungicide / D2 dopamine receptor binding / cell adhesion molecule binding / ionotropic glutamate receptor binding 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: 5 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. | ||||||
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構造の表示
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構造ビューア | 分子: ![]() ![]() |
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PDBx/mmCIF形式 | ![]() | 427.5 KB | 表示 | ![]() |
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PDB形式 | ![]() | 276.3 KB | 表示 | ![]() |
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その他 | ![]() |
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アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
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-関連構造データ
関連構造データ | ![]() 3353MC ![]() 3352C ![]() 3354C ![]() 3355C ![]() 3356C ![]() 5b3jC ![]() 5fxgC ![]() 5fxiC ![]() 5fxjC ![]() 5fxkC 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 |
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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: 95220.727 Da / 分子数: 2 / 断片: UNP RESIDUES 23-868 / 変異: YES / 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: 92931.078 Da / 分子数: 2 / 断片: UNP RESIDUES 27-852 / 変異: YES / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() 発現宿主: ![]() ![]() 参照: UniProt: Q00960 |
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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: NMDA RECEPTOR / タイプ: COMPLEX |
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緩衝液 | 名称: 200 MM NACL, 20 MM HEPES PH 7.0, 10 MM GLYCINE, 10 MM L-GLUTAMATE, 0.002% MNG-3 pH: 7 詳細: 200 MM NACL, 20 MM HEPES PH 7.0, 10 MM GLYCINE, 10 MM L-GLUTAMATE, 0.002% MNG-3 |
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: HOLEY CARBON |
急速凍結 | 装置: FEI VITROBOT MARK II / 凍結剤: ETHANE / 詳細: 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: FEI TITAN KRIOS / 日付: 2015年8月10日 |
電子銃 | 電子線源: ![]() |
電子レンズ | モード: BRIGHT FIELD / 倍率(公称値): 22500 X / 倍率(補正後): 38168 X / 最大 デフォーカス(公称値): 2500 nm / 最小 デフォーカス(公称値): 1000 nm |
撮影 | 電子線照射量: 100 e/Å2 フィルム・検出器のモデル: GATAN K2 SUMMIT (4k x 4k) |
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解析
対称性 | 点対称性: C2 (2回回転対称) | ||||||||||||
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3次元再構成 | 解像度: 5 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 15000 / Refinement type: HALF-MAPS REFINED AGAINST SAME DATA / 対称性のタイプ: POINT | ||||||||||||
精密化 | 最高解像度: 5 Å | ||||||||||||
精密化ステップ | サイクル: LAST / 最高解像度: 6.1 Å
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