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基本情報
登録情報 | データベース: PDB / ID: 6whx | |||||||||
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タイトル | GluN1b-GluN2B NMDA receptor in complex with GluN2B antagonist SDZ 220-040, class 2 | |||||||||
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![]() | MEMBRANE PROTEIN / NMDARs / Ligand-gated ion channels / METAL TRANSPORT / Ionotropic glutamate receptor / GluN2B antagonist | |||||||||
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 / regulation of monoatomic cation transmembrane transport / NMDA glutamate receptor activity / Synaptic adhesion-like molecules / 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 / glutamate binding / response to morphine / regulation of axonogenesis / calcium ion transmembrane import into cytosol / 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 / positive regulation of calcium ion transport into cytosol / receptor clustering / parallel fiber to Purkinje cell synapse / regulation of postsynaptic membrane potential / suckling behavior / response to amine / : / small molecule binding / startle response / monoatomic cation transmembrane transport / social behavior / associative learning / behavioral response to pain / response to magnesium ion / regulation of MAPK cascade / action potential / regulation of neuronal synaptic plasticity / cellular response to glycine / extracellularly glutamate-gated ion channel activity / monoatomic cation transport / positive regulation of dendritic spine maintenance / excitatory synapse / positive regulation of excitatory postsynaptic potential / monoatomic ion channel complex / long-term memory / Unblocking of NMDA receptors, glutamate binding and activation / cellular response to manganese ion / behavioral fear response / postsynaptic density, intracellular component / glutamate receptor binding / synaptic cleft / prepulse inhibition / multicellular organismal response to stress / neuron development / 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 / response to fungicide / glutamate-gated receptor activity / 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 | 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: 4.09 Å | |||||||||
![]() | Chou, T. / Tajima, N. / Furukawa, H. | |||||||||
資金援助 | ![]()
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![]() | ![]() タイトル: Structural Basis of Functional Transitions in Mammalian NMDA Receptors. 著者: Tsung-Han Chou / Nami Tajima / Annabel Romero-Hernandez / Hiro Furukawa / ![]() 要旨: Excitatory neurotransmission meditated by glutamate receptors including N-methyl-D-aspartate receptors (NMDARs) is pivotal to brain development and function. NMDARs are heterotetramers composed of ...Excitatory neurotransmission meditated by glutamate receptors including N-methyl-D-aspartate receptors (NMDARs) is pivotal to brain development and function. NMDARs are heterotetramers composed of GluN1 and GluN2 subunits, which bind glycine and glutamate, respectively, to activate their ion channels. Despite importance in brain physiology, the precise mechanisms by which activation and inhibition occur via subunit-specific binding of agonists and antagonists remain largely unknown. Here, we show the detailed patterns of conformational changes and inter-subunit and -domain reorientation leading to agonist-gating and subunit-dependent competitive inhibition by providing multiple structures in distinct ligand states at 4 Å or better. The structures reveal that activation and competitive inhibition by both GluN1 and GluN2 antagonists occur by controlling the tension of the linker between the ligand-binding domain and the transmembrane ion channel of the GluN2 subunit. Our results provide detailed mechanistic insights into NMDAR pharmacology, activation, and inhibition, which are fundamental to the brain physiology. | |||||||||
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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 | ![]() | 530.6 KB | 表示 | ![]() |
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PDB形式 | ![]() | 396.2 KB | 表示 | ![]() |
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-検証レポート
文書・要旨 | ![]() | 1.2 MB | 表示 | ![]() |
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文書・詳細版 | ![]() | 1.3 MB | 表示 | |
XML形式データ | ![]() | 90.6 KB | 表示 | |
CIF形式データ | ![]() | 135.9 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 | ![]() 21679MC ![]() 6usuC ![]() 6usvC ![]() 6whrC ![]() 6whsC ![]() 6whtC ![]() 6whuC ![]() 6whvC ![]() 6whwC ![]() 6whyC ![]() 6wi0C ![]() 6wi1C 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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集合体
登録構造単位 | ![]()
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要素
#1: タンパク質 | 分子量: 108085.633 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: P35439*PLUS #2: タンパク質 | 分子量: 98845.859 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*PLUS #3: 糖 | #4: 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: NMDA receptor GluN1b/2B functional ion channel complex タイプ: COMPLEX / Entity ID: #1-#2 / 由来: RECOMBINANT |
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由来(天然) | 生物種: ![]() ![]() |
由来(組換発現) | 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 | 装置: FEI VITROBOT MARK IV / 凍結剤: ETHANE / 湿度: 85 % / 凍結前の試料温度: 295 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: ![]() |
電子レンズ | モード: BRIGHT FIELD |
撮影 | 電子線照射量: 64.5 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
EMソフトウェア | 名称: cisTEM / バージョン: 1.0.0 / カテゴリ: 3次元再構成 |
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CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION |
対称性 | 点対称性: C1 (非対称) |
3次元再構成 | 解像度: 4.09 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 109232 / 対称性のタイプ: POINT |