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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: PDB / ID: 8c2i | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| タイトル | Transmembrane domain of resting state homomeric GluA1 AMPA receptor in complex with TARP gamma 3 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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キーワード | MEMBRANE PROTEIN / AMPAR / ion channels / neurotransmission | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 機能・相同性 | 機能・相同性情報Cargo concentration in the ER / axonal spine / positive regulation of locomotion involved in locomotory behavior / COPII-mediated vesicle transport / positive regulation of membrane potential / cellular response to ammonium ion / response to sucrose / myosin V binding / LGI-ADAM interactions / neuron spine ...Cargo concentration in the ER / axonal spine / positive regulation of locomotion involved in locomotory behavior / COPII-mediated vesicle transport / positive regulation of membrane potential / cellular response to ammonium ion / response to sucrose / myosin V binding / LGI-ADAM interactions / neuron spine / Trafficking of AMPA receptors / postsynaptic neurotransmitter receptor diffusion trapping / proximal dendrite / regulation of AMPA receptor activity / response to arsenic-containing substance / regulation of monoatomic ion transmembrane transport / channel regulator activity / cellular response to L-glutamate / cellular response to dsRNA / ligand-gated calcium channel activity / dendritic spine membrane / Synaptic adhesion-like molecules / beta-2 adrenergic receptor binding / long-term synaptic depression / cellular response to peptide hormone stimulus / cellular response to amine stimulus / peptide hormone receptor binding / response to psychosocial stress / response to morphine / Activation of AMPA receptors / neurotransmitter receptor localization to postsynaptic specialization membrane / spinal cord development / perisynaptic space / neuronal cell body membrane / protein kinase A binding / Trafficking of GluR2-containing AMPA receptors / response to lithium ion / AMPA glutamate receptor activity / transmission of nerve impulse / behavioral response to pain / immunoglobulin binding / adenylate cyclase binding / asymmetric synapse / response to electrical stimulus / AMPA glutamate receptor complex / cellular response to glycine / regulation of receptor recycling / ionotropic glutamate receptor complex / Unblocking of NMDA receptors, glutamate binding and activation / G-protein alpha-subunit binding / glutamate receptor binding / conditioned place preference / positive regulation of synaptic transmission / long-term memory / voltage-gated calcium channel activity / protein targeting / postsynaptic density, intracellular component / response to fungicide / neuronal action potential / positive regulation of synaptic transmission, glutamatergic / glutamate-gated receptor activity / cellular response to brain-derived neurotrophic factor stimulus / somatodendritic compartment / glutamate-gated calcium ion channel activity / presynaptic active zone membrane / synapse assembly / excitatory synapse / ionotropic glutamate receptor binding / dendrite membrane / ligand-gated monoatomic ion channel activity involved in regulation of presynaptic membrane potential / positive regulation of excitatory postsynaptic potential / dendritic shaft / synaptic membrane / response to cocaine / PDZ domain binding / neuromuscular junction / cellular response to amino acid stimulus / synaptic transmission, glutamatergic / transmitter-gated monoatomic ion channel activity involved in regulation of postsynaptic membrane potential / response to nutrient levels / cerebral cortex development / regulation of synaptic plasticity / receptor internalization / recycling endosome / postsynaptic density membrane / cellular response to growth factor stimulus / response to peptide hormone / modulation of chemical synaptic transmission / Schaffer collateral - CA1 synapse / response to toxic substance / recycling endosome membrane / small GTPase binding / cell-cell junction / synaptic vesicle / intracellular protein localization / long-term synaptic potentiation / response to estradiol / G-protein beta-subunit binding / amyloid-beta binding / synaptic vesicle membrane 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: 2.7 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
データ登録者 | Zhang, D. / Ivica, J. / Krieger, J.M. / Ho, H. / Yamashita, K. / Cais, O. / Greger, I. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 資金援助 | 英国, 2件
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引用 | ジャーナル: Nature / 年: 2023タイトル: Structural mobility tunes signalling of the GluA1 AMPA glutamate receptor. 著者: Danyang Zhang / Josip Ivica / James M Krieger / Hinze Ho / Keitaro Yamashita / Imogen Stockwell / Rozbeh Baradaran / Ondrej Cais / Ingo H Greger / ![]() 要旨: AMPA glutamate receptors (AMPARs), the primary mediators of excitatory neurotransmission in the brain, are either GluA2 subunit-containing and thus Ca-impermeable, or GluA2-lacking and Ca-permeable. ...AMPA glutamate receptors (AMPARs), the primary mediators of excitatory neurotransmission in the brain, are either GluA2 subunit-containing and thus Ca-impermeable, or GluA2-lacking and Ca-permeable. Despite their prominent expression throughout interneurons and glia, their role in long-term potentiation and their involvement in a range of neuropathologies, structural information for GluA2-lacking receptors is currently absent. Here we determine and characterize cryo-electron microscopy structures of the GluA1 homotetramer, fully occupied with TARPγ3 auxiliary subunits (GluA1/γ3). The gating core of both resting and open-state GluA1/γ3 closely resembles GluA2-containing receptors. However, the sequence-diverse N-terminal domains (NTDs) give rise to a highly mobile assembly, enabling domain swapping and subunit re-alignments in the ligand-binding domain tier that are pronounced in desensitized states. These transitions underlie the unique kinetic properties of GluA1. A GluA2 mutant (F231A) increasing NTD dynamics phenocopies this behaviour, and exhibits reduced synaptic responses, reflecting the anchoring function of the AMPAR NTD at the synapse. Together, this work underscores how the subunit-diverse NTDs determine subunit arrangement, gating properties and ultimately synaptic signalling efficiency among AMPAR subtypes. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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構造の表示
| 構造ビューア | 分子: Molmil Jmol/JSmol |
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ダウンロードとリンク
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ダウンロード
| PDBx/mmCIF形式 | 8c2i.cif.gz | 331.5 KB | 表示 | PDBx/mmCIF形式 |
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| PDB形式 | pdb8c2i.ent.gz | 230.6 KB | 表示 | PDB形式 |
| PDBx/mmJSON形式 | 8c2i.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
| アーカイブディレクトリ | https://data.pdbj.org/pub/pdb/validation_reports/c2/8c2i ftp://data.pdbj.org/pub/pdb/validation_reports/c2/8c2i | HTTPS FTP |
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-関連構造データ
| 関連構造データ | ![]() 16391MC ![]() 8c1pC ![]() 8c1qC ![]() 8c1rC ![]() 8c1sC ![]() 8c2hC ![]() 8p3qC ![]() 8p3sC ![]() 8p3tC ![]() 8p3uC ![]() 8p3vC ![]() 8p3wC ![]() 8p3xC ![]() 8p3yC ![]() 8p3zC ![]() 8pivC 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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| 類似構造データ | 類似検索 - 機能・相同性 F&H 検索 |
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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
-タンパク質 , 2種, 8分子 ABCDEFGH
| #1: タンパク質 | 分子量: 102661.930 Da / 分子数: 4 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() Homo sapiens (ヒト) / 参照: UniProt: P19490#2: タンパク質 | 分子量: 35435.332 Da / 分子数: 4 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() Homo sapiens (ヒト) / 参照: UniProt: Q8VHX0 |
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-非ポリマー , 4種, 48分子 






| #3: 化合物 | ChemComp-PLM / #4: 化合物 | ChemComp-OLC / ( #5: 化合物 | ChemComp-POV / ( #6: 水 | ChemComp-HOH / | |
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-詳細
| 研究の焦点であるリガンドがあるか | N |
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| Has protein modification | Y |
-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: Homomeric GluA1 AMPA receptor in complex with TARP gamma 3 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: Homo sapiens (ヒト) |
| 緩衝液 | pH: 8 |
| 試料 | 包埋: NO / シャドウイング: NO / 染色: NO / 凍結: YES |
| 急速凍結 | 凍結剤: 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: TFS 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 / 最大 デフォーカス(公称値): 2400 nm / 最小 デフォーカス(公称値): 1400 nm |
| 撮影 | 電子線照射量: 50 e/Å2 フィルム・検出器のモデル: GATAN K3 BIOQUANTUM (6k x 4k) |
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解析
| EMソフトウェア | 名称: REFMAC / カテゴリ: モデル精密化 |
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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: 2.7 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 252544 / 対称性のタイプ: POINT |
| 原子モデル構築 | 詳細: Servalcat |
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万見について






英国, 2件
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Homo sapiens (ヒト)
FIELD EMISSION GUN