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データを開く
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基本情報
| 登録情報 | データベース: EMDB / ID: EMD-20654 | |||||||||
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| タイトル | NTD of GluA2 in complex with CNIH3 - with antagonist ZK200775 - in pseudo-symmetric global conformation. | |||||||||
マップデータ | N-terminal domain (NTD) of GluA2-CNIH3 complex in pseudo-symmetric conformation. The structure was determined by focused classification and refinement of the NTD layer. | |||||||||
試料 |
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キーワード | ionotropic glutamate receptor / AMPA receptor / cornichon / auxiliary subunit / ion channel / ligand gated ion channel / synaptic transmission / excitatory synaptic transmission / neurotransmitter receptor / stargazin / TARP / ZK200775 / lipid / MPQX / TRANSPORT PROTEIN | |||||||||
| 機能・相同性 | 機能・相同性情報spine synapse / dendritic spine neck / dendritic spine cytoplasm / dendritic spine head / cellular response to amine stimulus / 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 / dendritic spine head / cellular response to amine stimulus / 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 / extracellularly glutamate-gated ion channel activity / AMPA glutamate receptor complex / cellular response to glycine / regulation of receptor recycling / 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 / cytoskeletal protein binding / glutamate-gated receptor activity / regulation of long-term synaptic depression / cellular response to brain-derived neurotrophic factor stimulus / 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 / dendrite cytoplasm / ligand-gated monoatomic ion channel activity involved in regulation of presynaptic membrane potential / positive regulation of excitatory postsynaptic potential / dendritic shaft / SNARE binding / synaptic membrane / PDZ domain binding / synaptic transmission, glutamatergic / protein tetramerization / establishment of protein localization / 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: 3.07 Å | |||||||||
データ登録者 | Nakagawa T | |||||||||
| 資金援助 | 米国, 1件
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引用 | ジャーナル: Science / 年: 2019タイトル: Structures of the AMPA receptor in complex with its auxiliary subunit cornichon. 著者: Terunaga Nakagawa / ![]() 要旨: In the brain, AMPA-type glutamate receptors (AMPARs) form complexes with their auxiliary subunits and mediate the majority of fast excitatory neurotransmission. Signals transduced by these complexes ...In the brain, AMPA-type glutamate receptors (AMPARs) form complexes with their auxiliary subunits and mediate the majority of fast excitatory neurotransmission. Signals transduced by these complexes are critical for synaptic plasticity, learning, and memory. The two major categories of AMPAR auxiliary subunits are transmembrane AMPAR regulatory proteins (TARPs) and cornichon homologs (CNIHs); these subunits share little homology and play distinct roles in controlling ion channel gating and trafficking of AMPAR. Here, I report high-resolution cryo-electron microscopy structures of AMPAR in complex with CNIH3. Contrary to its predicted membrane topology, CNIH3 lacks an extracellular domain and instead contains four membrane-spanning helices. The protein-protein interaction interface that dictates channel modulation and the lipids surrounding the complex are revealed. These structures provide insights into the molecular mechanism for ion channel modulation and assembly of AMPAR/CNIH3 complexes. | |||||||||
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構造の表示
| ムービー |
ムービービューア |
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| 構造ビューア | EMマップ: SurfView Molmil Jmol/JSmol |
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ダウンロードとリンク
-EMDBアーカイブ
| マップデータ | emd_20654.map.gz | 166.2 MB | EMDBマップデータ形式 | |
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| ヘッダ (付随情報) | emd-20654-v30.xml emd-20654.xml | 13.9 KB 13.9 KB | 表示 表示 | EMDBヘッダ |
| FSC (解像度算出) | emd_20654_fsc.xml | 12.7 KB | 表示 | FSCデータファイル |
| 画像 | emd_20654.png | 218 KB | ||
| Filedesc metadata | emd-20654.cif.gz | 6.4 KB | ||
| アーカイブディレクトリ | http://ftp.pdbj.org/pub/emdb/structures/EMD-20654 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-20654 | HTTPS FTP |
-関連構造データ
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リンク
| EMDBのページ | EMDB (EBI/PDBe) / EMDataResource |
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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 | ダウンロード / ファイル: emd_20654.map.gz / 形式: CCP4 / 大きさ: 178 MB / タイプ: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| 注釈 | N-terminal domain (NTD) of GluA2-CNIH3 complex in pseudo-symmetric conformation. The structure was determined by focused classification and refinement of the NTD layer. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 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: 1.066 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 : NTD of GluA2 in complex with CNIH3 at 4:4 stoichiometry
| 全体 | 名称: NTD of GluA2 in complex with CNIH3 at 4:4 stoichiometry |
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| 要素 |
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-超分子 #1: NTD of GluA2 in complex with CNIH3 at 4:4 stoichiometry
| 超分子 | 名称: NTD of GluA2 in complex with CNIH3 at 4:4 stoichiometry タイプ: complex / ID: 1 / 親要素: 0 / 含まれる分子: all 詳細: The map was generated by focused classification and refinement of the NTD tetramer. The rest of the molecule is ill-resolved because of conformational flexibility between the NTD and LBD. The ...詳細: The map was generated by focused classification and refinement of the NTD tetramer. The rest of the molecule is ill-resolved because of conformational flexibility between the NTD and LBD. The LBD is bound to antagonist ZK200775 (MPQX). |
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| 由来(天然) | 生物種: ![]() |
| 分子量 | 理論値: 470 KDa |
-分子 #1: Glutamate receptor 2
| 分子 | 名称: Glutamate receptor 2 / タイプ: protein_or_peptide / ID: 1 / コピー数: 4 / 光学異性体: LEVO |
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| 由来(天然) | 生物種: ![]() |
| 分子量 | 理論値: 99.530391 KDa |
| 組換発現 | 生物種: Homo sapiens (ヒト) |
| 配列 | 文字列: MQKIMHISVL LSPVLWGLIF GVSSNSIQIG GLFPRGADQE YSAFRVGMVQ FSTSEFRLTP HIDNLEVANS FAVTNAFCSQ FSRGVYAIF GFYDKKSVNT ITSFCGTLHV SFITPSFPTD GTHPFVIQMR PDLKGALLSL IEYYQWDKFA YLYDSDRGLS T LQAVLDSA ...文字列: MQKIMHISVL LSPVLWGLIF GVSSNSIQIG GLFPRGADQE YSAFRVGMVQ FSTSEFRLTP HIDNLEVANS FAVTNAFCSQ FSRGVYAIF GFYDKKSVNT ITSFCGTLHV SFITPSFPTD GTHPFVIQMR PDLKGALLSL IEYYQWDKFA YLYDSDRGLS T LQAVLDSA AEKKWQVTAI NVGNINNDKK DETYRSLFQD LELKKERRVI LDCERDKVND IVDQVITIGK HVKGYHYIIA NL GFTDGDL LKIQFGGANV SGFQIVDYDD SLVSKFIERW STLEEKEYPG AHTATIKYTS ALTYDAVQVM TEAFRNLRKQ RIE ISRRGN AGDCLANPAV PWGQGVEIER ALKQVQVEGL SGNIKFDQNG KRINYTINIM ELKTNGPRKI GYWSEVDKMV VTLT ELPSG NDTSGLENKT VVVTTILESP YVMMKKNHEM LEGNERYEGY CVDLAAEIAK HCGFKYKLTI VGDGKYGARD ADTKI WNGM VGELVYGKAD IAIAPLTITL VREEVIDFSK PFMSLGISIM IKKPQKSKPG VFSFLDPLAY EIWMCIVFAY IGVSVV LFL VSRFSPYEWH TEEFEDGRET QSSESTNEFG IFNSLWFSLG AFMRQGCDIS PRSLSGRIVG GVWWFFTLII ISSYTAN LA AFLTVERMVS PIESAEDLSK QTEIAYGTLD SGSTKEFFRR SKIAVFDKMW TYMRSAEPSV FVRTTAEGVA RVRKSKGK Y AYLLESTMNE YIEQRKPCDT MKVGGNLDSK GYGIATPKGS SLGNAVNLAV LKLNEQGLLD KLKNKWWYDK GECGSGGGD SKEKTSALSL SNVAGVFYIL VGGLGLAMLV ALIEFCYKSR AEAKRMKVAK NPQNINPSSS QNSQNFATDY KDDDDKEGYN VYGIESVKI UniProtKB: Glutamate receptor 2 |
-実験情報
-構造解析
| 手法 | クライオ電子顕微鏡法 |
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解析 | 単粒子再構成法 |
| 試料の集合状態 | particle |
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試料調製
| 緩衝液 | pH: 8 構成要素:
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| 凍結 | 凍結剤: ETHANE / チャンバー内湿度: 100 % / チャンバー内温度: 277.15 K / 装置: FEI VITROBOT MARK IV |
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電子顕微鏡法
| 顕微鏡 | FEI TITAN KRIOS |
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| 特殊光学系 | エネルギーフィルター - 名称: GIF Bioquantum / エネルギーフィルター - スリット幅: 20 eV |
| 撮影 | フィルム・検出器のモデル: GATAN K3 BIOQUANTUM (6k x 4k) 撮影したグリッド数: 1 / 実像数: 11340 / 平均露光時間: 6.0 sec. / 平均電子線量: 58.5 e/Å2 |
| 電子線 | 加速電圧: 300 kV / 電子線源: FIELD EMISSION GUN |
| 電子光学系 | 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): 2.0 µm / 最小 デフォーカス(公称値): 0.8 µm / 倍率(公称値): 81000 |
| 試料ステージ | 試料ホルダーモデル: FEI TITAN KRIOS AUTOGRID HOLDER ホルダー冷却材: NITROGEN |
| 実験機器 | ![]() モデル: Titan Krios / 画像提供: FEI Company |
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画像解析
-原子モデル構築 1
| 精密化 | 空間: REAL |
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| 得られたモデル | ![]() PDB-6u5s: |
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万見について



キーワード
データ登録者
米国, 1件
引用
UCSF Chimera


























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Homo sapiens (ヒト)


