+データを開く
-基本情報
登録情報 | データベース: PDB / ID: 6qkz | |||||||||
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タイトル | Full length GluA1/2-gamma8 complex | |||||||||
要素 |
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キーワード | MEMBRANE PROTEIN / AMPAR / ion channel / GluA1 / GluA2 / tarp | |||||||||
機能・相同性 | 機能・相同性情報 Phase 0 - rapid depolarisation / Phase 2 - plateau phase / Cargo concentration in the ER / cellular response to amine stimulus / axonal spine / COPII-mediated vesicle transport / positive regulation of locomotion involved in locomotory behavior / positive regulation of membrane potential / cellular response to ammonium ion / neurotransmitter receptor activity involved in regulation of postsynaptic cytosolic calcium ion concentration ...Phase 0 - rapid depolarisation / Phase 2 - plateau phase / Cargo concentration in the ER / cellular response to amine stimulus / axonal spine / COPII-mediated vesicle transport / positive regulation of locomotion involved in locomotory behavior / positive regulation of membrane potential / cellular response to ammonium ion / neurotransmitter receptor activity involved in regulation of postsynaptic cytosolic calcium ion concentration / response to sucrose / proximal dendrite / neurotransmitter receptor transport, postsynaptic endosome to lysosome / L-type voltage-gated calcium channel complex / LGI-ADAM interactions / myosin V binding / Trafficking of AMPA receptors / neuron spine / cellular response to dsRNA / cellular response to L-glutamate / regulation of AMPA receptor activity / conditioned place preference / neurotransmitter receptor internalization / protein phosphatase 2B binding / response to arsenic-containing substance / regulation of monoatomic ion transmembrane transport / postsynaptic neurotransmitter receptor diffusion trapping / dendritic spine membrane / Synaptic adhesion-like molecules / long-term synaptic depression / response to morphine / beta-2 adrenergic receptor binding / cellular response to peptide hormone stimulus / protein kinase A binding / peptide hormone receptor binding / response to psychosocial stress / spine synapse / dendritic spine neck / spinal cord development / dendritic spine head / neuronal cell body membrane / Activation of AMPA receptors / perisynaptic space / behavioral response to pain / AMPA glutamate receptor activity / transmission of nerve impulse / ligand-gated monoatomic cation channel activity / channel regulator activity / Trafficking of GluR2-containing AMPA receptors / response to lithium ion / extracellularly glutamate-gated ion channel activity / immunoglobulin binding / cellular response to organic cyclic compound / regulation of postsynaptic membrane neurotransmitter receptor levels / AMPA glutamate receptor complex / kainate selective glutamate receptor activity / excitatory synapse / adenylate cyclase binding / ionotropic glutamate receptor complex / regulation of postsynaptic membrane potential / positive regulation of excitatory postsynaptic potential / cellular response to glycine / asymmetric synapse / postsynaptic density, intracellular component / calcium channel regulator activity / regulation of receptor recycling / neuronal action potential / G-protein alpha-subunit binding / Unblocking of NMDA receptors, glutamate binding and activation / voltage-gated calcium channel activity / glutamate receptor binding / positive regulation of synaptic transmission / response to electrical stimulus / long-term memory / extracellular ligand-gated monoatomic ion channel activity / glutamate-gated receptor activity / response to fungicide / glutamate-gated calcium ion channel activity / presynaptic active zone membrane / regulation of synaptic transmission, glutamatergic / ionotropic glutamate receptor binding / somatodendritic compartment / dendrite membrane / synapse assembly / cellular response to brain-derived neurotrophic factor stimulus / ligand-gated monoatomic ion channel activity involved in regulation of presynaptic membrane potential / cytoskeletal protein binding / dendrite cytoplasm / ionotropic glutamate receptor signaling pathway / positive regulation of synaptic transmission, glutamatergic / response to nutrient levels / SNARE binding / dendritic shaft / response to cocaine / synaptic transmission, glutamatergic / synaptic membrane / long-term synaptic potentiation / transmitter-gated monoatomic ion channel activity involved in regulation of postsynaptic membrane potential / PDZ domain binding / cellular response to amino acid stimulus 類似検索 - 分子機能 | |||||||||
生物種 | Rattus norvegicus (ドブネズミ) | |||||||||
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: 6.3 Å | |||||||||
データ登録者 | Herguedas, B. / Garcia-Nafria, J. / Greger, I.G. | |||||||||
引用 | ジャーナル: Science / 年: 2019 タイトル: Architecture of the heteromeric GluA1/2 AMPA receptor in complex with the auxiliary subunit TARP γ8. 著者: Beatriz Herguedas / Jake F Watson / Hinze Ho / Ondrej Cais / Javier García-Nafría / Ingo H Greger / 要旨: AMPA-type glutamate receptors (AMPARs) mediate excitatory neurotransmission and are central regulators of synaptic plasticity, a molecular mechanism underlying learning and memory. Although AMPARs ...AMPA-type glutamate receptors (AMPARs) mediate excitatory neurotransmission and are central regulators of synaptic plasticity, a molecular mechanism underlying learning and memory. Although AMPARs act predominantly as heteromers, structural studies have focused on homomeric assemblies. Here, we present a cryo-electron microscopy structure of the heteromeric GluA1/2 receptor associated with two transmembrane AMPAR regulatory protein (TARP) γ8 auxiliary subunits, the principal AMPAR complex at hippocampal synapses. Within the receptor, the core subunits arrange to give the GluA2 subunit dominant control of gating. This structure reveals the geometry of the Q/R site that controls calcium flux, suggests association of TARP-stabilized lipids, and demonstrates that the extracellular loop of γ8 modulates gating by selectively interacting with the GluA2 ligand-binding domain. Collectively, this structure provides a blueprint for deciphering the signal transduction mechanisms of synaptic AMPARs. | |||||||||
履歴 |
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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 | 分子: MolmilJmol/JSmol |
-ダウンロードとリンク
-ダウンロード
PDBx/mmCIF形式 | 6qkz.cif.gz | 442.8 KB | 表示 | PDBx/mmCIF形式 |
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PDB形式 | pdb6qkz.ent.gz | 274.8 KB | 表示 | PDB形式 |
PDBx/mmJSON形式 | 6qkz.json.gz | ツリー表示 | PDBx/mmJSON形式 | |
その他 | その他のダウンロード |
-検証レポート
文書・要旨 | 6qkz_validation.pdf.gz | 1.7 MB | 表示 | wwPDB検証レポート |
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文書・詳細版 | 6qkz_full_validation.pdf.gz | 1.7 MB | 表示 | |
XML形式データ | 6qkz_validation.xml.gz | 77 KB | 表示 | |
CIF形式データ | 6qkz_validation.cif.gz | 126.3 KB | 表示 | |
アーカイブディレクトリ | https://data.pdbj.org/pub/pdb/validation_reports/qk/6qkz ftp://data.pdbj.org/pub/pdb/validation_reports/qk/6qkz | HTTPS FTP |
-関連構造データ
-リンク
-集合体
登録構造単位 |
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1 |
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-要素
-タンパク質 , 3種, 6分子 ACBDIJ
#1: タンパク質 | 分子量: 100739.602 Da / 分子数: 2 / 由来タイプ: 組換発現 / 由来: (組換発現) Rattus norvegicus (ドブネズミ) / 発現宿主: Homo sapiens (ヒト) / 参照: UniProt: P19490 #2: タンパク質 | 分子量: 93880.078 Da / 分子数: 2 / 由来タイプ: 組換発現 / 由来: (組換発現) Rattus norvegicus (ドブネズミ) / 遺伝子: Gria2, Glur2 / 発現宿主: Homo sapiens (ヒト) / 参照: UniProt: P19491 #3: タンパク質 | 分子量: 43592.008 Da / 分子数: 2 / 由来タイプ: 組換発現 / 由来: (組換発現) Rattus norvegicus (ドブネズミ) / 遺伝子: Cacng8 / 発現宿主: Homo sapiens (ヒト) / 参照: UniProt: Q8VHW5 |
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-糖 , 3種, 10分子
#4: 多糖 | #5: 多糖 | 2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose #7: 糖 | |
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-非ポリマー , 1種, 4分子
#6: 化合物 | ChemComp-E2Q / |
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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 |
-試料調製
構成要素 | 名称: GluA1/A2 bound to gamma-8 / タイプ: COMPLEX / Entity ID: #1-#3 / 由来: RECOMBINANT |
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分子量 | 値: 447 kDa/nm / 実験値: NO |
由来(天然) | 生物種: Rattus norvegicus (ドブネズミ) |
由来(組換発現) | 生物種: Homo sapiens (ヒト) |
緩衝液 | pH: 8 詳細: 25 mM TRIS, pH 8, 150 mM NaCl and 0.1 % digitonin (w/v) |
試料 | 濃度: 0.4 mg/ml / 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: 100 % / 凍結前の試料温度: 277 K 詳細: 3uL on grid, 60 sec incubation and 4sec blotting time |
-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: FIELD EMISSION GUN / 加速電圧: 300 kV / 照射モード: FLOOD BEAM |
電子レンズ | モード: BRIGHT FIELD / 倍率(公称値): 105000 X / 最大 デフォーカス(公称値): -900 nm / 最小 デフォーカス(公称値): -200 nm / Cs: 2.7 mm / C2レンズ絞り径: 50 µm / アライメント法: COMA FREE |
試料ホルダ | 凍結剤: NITROGEN 試料ホルダーモデル: FEI TITAN KRIOS AUTOGRID HOLDER 最高温度: 100 K / 最低温度: 100 K |
撮影 | 平均露光時間: 14 sec. / 電子線照射量: 32 e/Å2 / 検出モード: COUNTING フィルム・検出器のモデル: GATAN K2 SUMMIT (4k x 4k) 撮影したグリッド数: 3 / 実像数: 5005 |
電子光学装置 | エネルギーフィルタースリット幅: 20 eV / 位相板: VOLTA PHASE PLATE |
画像スキャン | 横: 3838 / 縦: 3710 / 動画フレーム数/画像: 35 |
-解析
EMソフトウェア |
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CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||||||||||
対称性 | 点対称性: C2 (2回回転対称) | ||||||||||||||||||||||||||||||||
3次元再構成 | 解像度: 6.3 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 183881 / 対称性のタイプ: POINT | ||||||||||||||||||||||||||||||||
原子モデル構築 | プロトコル: RIGID BODY FIT / 空間: REAL | ||||||||||||||||||||||||||||||||
原子モデル構築 |
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