+
データを開く
-
基本情報
| 登録情報 | データベース: EMDB / ID: EMD-2680 | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| タイトル | Density map of GluA2em in complex with ZK200775 | |||||||||
マップデータ | Reconstruction of GluA2em antagonist-bound closed state | |||||||||
試料 |
| |||||||||
キーワード | GluA2em antagonist-bound closed state | |||||||||
| 機能・相同性 | 機能・相同性情報spine synapse / dendritic spine neck / dendritic spine cytoplasm / cellular response to amine stimulus / dendritic spine head / Activation of AMPA receptors / ligand-gated monoatomic cation channel activity / perisynaptic space / Trafficking of GluR2-containing AMPA receptors / response to lithium ion ...spine synapse / dendritic spine neck / dendritic spine cytoplasm / cellular response to amine stimulus / dendritic spine head / Activation of AMPA receptors / ligand-gated monoatomic cation channel activity / perisynaptic space / Trafficking of GluR2-containing AMPA receptors / response to lithium ion / AMPA glutamate receptor activity / AMPA glutamate receptor clustering / kainate selective glutamate receptor activity / immunoglobulin binding / asymmetric synapse / AMPA glutamate receptor complex / regulation of receptor recycling / extracellularly glutamate-gated ion channel activity / cellular response to glycine / ionotropic glutamate receptor complex / Unblocking of NMDA receptors, glutamate binding and activation / glutamate receptor binding / conditioned place preference / positive regulation of synaptic transmission / response to fungicide / regulation of synaptic transmission, glutamatergic / extracellular ligand-gated monoatomic ion channel activity / glutamate-gated receptor activity / cytoskeletal protein binding / cellular response to brain-derived neurotrophic factor stimulus / regulation of long-term synaptic depression / somatodendritic compartment / glutamate-gated calcium ion channel activity / presynaptic active zone membrane / excitatory synapse / ionotropic glutamate receptor signaling pathway / ionotropic glutamate receptor binding / dendrite membrane / ligand-gated monoatomic ion channel activity involved in regulation of presynaptic membrane potential / dendrite cytoplasm / positive regulation of excitatory postsynaptic potential / dendritic shaft / synaptic membrane / SNARE binding / PDZ domain binding / establishment of protein localization / synaptic transmission, glutamatergic / protein tetramerization / transmitter-gated monoatomic ion channel activity involved in regulation of postsynaptic membrane potential / cerebral cortex development / receptor internalization / postsynaptic density membrane / modulation of chemical synaptic transmission / Schaffer collateral - CA1 synapse / terminal bouton / synaptic vesicle / long-term synaptic potentiation / amyloid-beta binding / synaptic vesicle membrane / growth cone / presynapse / signaling receptor activity / presynaptic membrane / scaffold protein binding / dendritic spine / chemical synaptic transmission / perikaryon / postsynaptic membrane / neuron projection / postsynaptic density / external side of plasma membrane / axon / neuronal cell body / synapse / dendrite / protein kinase binding / protein-containing complex binding / glutamatergic synapse / cell surface / endoplasmic reticulum / protein-containing complex / membrane / identical protein binding / plasma membrane 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: 10.4 Å | |||||||||
データ登録者 | Meyerson JR / Kumar J / Chittori S / Rao P / Pierson J / Bartesaghi A / Mayer ML / Subramaniam S | |||||||||
引用 | ジャーナル: Nature / 年: 2014タイトル: Structural mechanism of glutamate receptor activation and desensitization. 著者: Joel R Meyerson / Janesh Kumar / Sagar Chittori / Prashant Rao / Jason Pierson / Alberto Bartesaghi / Mark L Mayer / Sriram Subramaniam / ![]() 要旨: Ionotropic glutamate receptors are ligand-gated ion channels that mediate excitatory synaptic transmission in the vertebrate brain. To gain a better understanding of how structural changes gate ion ...Ionotropic glutamate receptors are ligand-gated ion channels that mediate excitatory synaptic transmission in the vertebrate brain. To gain a better understanding of how structural changes gate ion flux across the membrane, we trapped rat AMPA (α-amino-3-hydroxy-5-methyl-4-isoxazole propionic acid) and kainate receptor subtypes in their major functional states and analysed the resulting structures using cryo-electron microscopy. We show that transition to the active state involves a 'corkscrew' motion of the receptor assembly, driven by closure of the ligand-binding domain. Desensitization is accompanied by disruption of the amino-terminal domain tetramer in AMPA, but not kainate, receptors with a two-fold to four-fold symmetry transition in the ligand-binding domains in both subtypes. The 7.6 Å structure of a desensitized kainate receptor shows how these changes accommodate channel closing. These findings integrate previous physiological, biochemical and structural analyses of glutamate receptors and provide a molecular explanation for key steps in receptor gating. | |||||||||
| 履歴 |
|
-
構造の表示
| ムービー |
ムービービューア |
|---|---|
| 構造ビューア | EMマップ: SurfView Molmil Jmol/JSmol |
| 添付画像 |
-
ダウンロードとリンク
-EMDBアーカイブ
| マップデータ | emd_2680.map.gz | 3.8 MB | EMDBマップデータ形式 | |
|---|---|---|---|---|
| ヘッダ (付随情報) | emd-2680-v30.xml emd-2680.xml | 10.7 KB 10.7 KB | 表示 表示 | EMDBヘッダ |
| 画像 | EMD-2680-GluA2-ZK.jpg | 42 KB | ||
| アーカイブディレクトリ | http://ftp.pdbj.org/pub/emdb/structures/EMD-2680 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-2680 | HTTPS FTP |
-関連構造データ
| 関連構造データ | ![]() 4uqjMC ![]() 2684C ![]() 2685C ![]() 2686C ![]() 2687C ![]() 2688C ![]() 2689C ![]() 4uq6C ![]() 4uqkC ![]() 4uqqC 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 ( |
|---|---|
| 類似構造データ |
-
リンク
| EMDBのページ | EMDB (EBI/PDBe) / EMDataResource |
|---|---|
| 「今月の分子」の関連する項目 |
-
マップ
| ファイル | ダウンロード / ファイル: emd_2680.map.gz / 形式: CCP4 / 大きさ: 29.8 MB / タイプ: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 注釈 | Reconstruction of GluA2em antagonist-bound closed state | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 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: 1.406 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 密度 |
| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 対称性 | 空間群: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 詳細 | EMDB XML:
CCP4マップ ヘッダ情報:
| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
-添付データ
-
試料の構成要素
-全体 : GluA2em with ZK200775 ligand
| 全体 | 名称: GluA2em with ZK200775 ligand |
|---|---|
| 要素 |
|
-超分子 #1000: GluA2em with ZK200775 ligand
| 超分子 | 名称: GluA2em with ZK200775 ligand / タイプ: sample / ID: 1000 / Number unique components: 2 |
|---|---|
| 分子量 | 実験値: 370 KDa / 理論値: 370 KDa |
-分子 #1: GluA2
| 分子 | 名称: GluA2 / タイプ: protein_or_peptide / ID: 1 / 集合状態: tetramer / 組換発現: Yes |
|---|---|
| 由来(天然) | 生物種: ![]() |
| 分子量 | 実験値: 370 KDa / 理論値: 370 KDa |
| 組換発現 | 生物種: ![]() 組換細胞: Sf9 / 組換プラスミド: pFastBac1 |
| 配列 | UniProtKB: Glutamate receptor 2 |
-分子 #2: ZK200775
| 分子 | 名称: ZK200775 / タイプ: ligand / ID: 2 / 組換発現: No |
|---|---|
| 由来(天然) | 生物種: synthetic construct (人工物) |
-実験情報
-構造解析
| 手法 | クライオ電子顕微鏡法 |
|---|---|
解析 | 単粒子再構成法 |
| 試料の集合状態 | particle |
-
試料調製
| 濃度 | 1.8 mg/mL |
|---|---|
| 緩衝液 | pH: 8 詳細: 150 mM NaCl, 20 mM Tris pH 8.0, 0.75 mM DDM, 0.12 mM CHS, 0.3 mM ZK200775 |
| グリッド | 詳細: Vitrified specimens were prepared by adding 2.5 uL of liganded protein at 1.8 mg/ml to R2/2 holey carbon grids (Quantifoil, Jena, Germany) rendered hydrophilic by chemical treatment to enable ...詳細: Vitrified specimens were prepared by adding 2.5 uL of liganded protein at 1.8 mg/ml to R2/2 holey carbon grids (Quantifoil, Jena, Germany) rendered hydrophilic by chemical treatment to enable particle distribution into the holes (Meyerson JR, Rao P, Kumar K, Chittori S, Banerjee S, Pierson J, Mayer ML, and Subramaniam S, manuscript in preparation). |
| 凍結 | 凍結剤: ETHANE / チャンバー内湿度: 100 % / チャンバー内温度: 120 K / 装置: FEI VITROBOT MARK IV / 手法: Blot for 2 seconds before plunging |
-
電子顕微鏡法
| 顕微鏡 | FEI TITAN KRIOS |
|---|---|
| 日付 | 2013年8月1日 |
| 撮影 | カテゴリ: CCD フィルム・検出器のモデル: FEI FALCON II (4k x 4k) 実像数: 3751 / 平均電子線量: 25 e/Å2 |
| 電子線 | 加速電圧: 300 kV / 電子線源: FIELD EMISSION GUN |
| 電子光学系 | 倍率(補正後): 47000 / 照射モード: FLOOD BEAM / 撮影モード: BRIGHT FIELD / 最大 デフォーカス(公称値): 3.5 µm / 最小 デフォーカス(公称値): 2.0 µm / 倍率(公称値): 47000 |
| 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 |
-
画像解析
| 詳細 | The particles were selected interactively at the computer terminal. |
|---|---|
| CTF補正 | 詳細: Each particle |
| 最終 再構成 | 想定した対称性 - 点群: C2 (2回回転対称) / 解像度のタイプ: BY AUTHOR / 解像度: 10.4 Å / 解像度の算出法: OTHER / ソフトウェア - 名称: Relion / 使用した粒子像数: 26795 |
-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 |
|---|---|
| ソフトウェア | 名称: chimera |
| 詳細 | Two copies of the GluA2cryst ATD dimer assembly, two copies of the GluA2cryst LBD dimer assembly, and the GluA2cryst TMD were fit to the EM density map. |
| 精密化 | 空間: REAL / プロトコル: RIGID BODY FIT |
| 得られたモデル | ![]() PDB-4uqj: |
ムービー
コントローラー
万見について



キーワード
データ登録者
引用
UCSF Chimera


















Z (Sec.)
Y (Row.)
X (Col.)
























