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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: 8t8m | |||||||||||||||||||||||||||||||||
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| タイトル | Quis-bound intermediate mGlu5 | |||||||||||||||||||||||||||||||||
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キーワード | SIGNALING PROTEIN / GPCR | |||||||||||||||||||||||||||||||||
| 機能・相同性 | 機能・相同性情報A2A adenosine receptor binding / sensory perception of hot stimulus / : / negative regulation of dendritic spine morphogenesis / G protein-coupled receptor activity involved in regulation of postsynaptic membrane potential / adenylate cyclase inhibiting G protein-coupled glutamate receptor activity / phospholipase C-activating G protein-coupled glutamate receptor signaling pathway / operant conditioning / protein localization to nuclear inner membrane / positive regulation of cellular response to hypoxia ...A2A adenosine receptor binding / sensory perception of hot stimulus / : / negative regulation of dendritic spine morphogenesis / G protein-coupled receptor activity involved in regulation of postsynaptic membrane potential / adenylate cyclase inhibiting G protein-coupled glutamate receptor activity / phospholipase C-activating G protein-coupled glutamate receptor signaling pathway / operant conditioning / protein localization to nuclear inner membrane / positive regulation of cellular response to hypoxia / positive regulation of long-term neuronal synaptic plasticity / positive regulation of sensory perception of pain / negative regulation of excitatory postsynaptic potential / positive regulation of dopamine secretion / desensitization of G protein-coupled receptor signaling pathway / G protein-coupled glutamate receptor signaling pathway / positive regulation of neural precursor cell proliferation / Class C/3 (Metabotropic glutamate/pheromone receptors) / glutamate receptor activity / nuclear inner membrane / Neurexins and neuroligins / astrocyte projection / response to morphine / response to corticosterone / temperature homeostasis / protein tyrosine kinase activator activity / conditioned place preference / regulation of synaptic transmission, glutamatergic / regulation of long-term synaptic depression / positive regulation of calcium-mediated signaling / protein tyrosine kinase binding / dendritic shaft / response to amphetamine / locomotory behavior / synapse organization / postsynaptic density membrane / G protein-coupled receptor activity / Schaffer collateral - CA1 synapse / cognition / cellular response to amyloid-beta / positive regulation of cytosolic calcium ion concentration / G alpha (q) signalling events / dendritic spine / chemical synaptic transmission / response to ethanol / learning or memory / positive regulation of MAPK cascade / response to antibiotic / neuronal cell body / regulation of DNA-templated transcription / dendrite / glutamatergic synapse / identical protein binding / plasma membrane / cytoplasm 類似検索 - 分子機能 | |||||||||||||||||||||||||||||||||
| 生物種 | Homo sapiens (ヒト)![]() | |||||||||||||||||||||||||||||||||
| 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: 3 Å | |||||||||||||||||||||||||||||||||
データ登録者 | Krishna Kumar, K. / Wang, H. / Kobilka, B.K. | |||||||||||||||||||||||||||||||||
| 資金援助 | 米国, 1件
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引用 | ジャーナル: Nature / 年: 2024タイトル: Stepwise activation of a metabotropic glutamate receptor. 著者: Kaavya Krishna Kumar / Haoqing Wang / Chris Habrian / Naomi R Latorraca / Jun Xu / Evan S O'Brien / Chensong Zhang / Elizabeth Montabana / Antoine Koehl / Susan Marqusee / Ehud Y Isacoff / Brian K Kobilka / ![]() 要旨: Metabotropic glutamate receptors belong to a family of G protein-coupled receptors that are obligate dimers and possess a large extracellular ligand-binding domain that is linked via a cysteine-rich ...Metabotropic glutamate receptors belong to a family of G protein-coupled receptors that are obligate dimers and possess a large extracellular ligand-binding domain that is linked via a cysteine-rich domain to their 7-transmembrane domain. Upon activation, these receptors undergo a large conformational change to transmit the ligand binding signal from the extracellular ligand-binding domain to the G protein-coupling 7-transmembrane domain. In this manuscript, we propose a model for a sequential, multistep activation mechanism of metabotropic glutamate receptor subtype 5. We present a series of structures in lipid nanodiscs, from inactive to fully active, including agonist-bound intermediate states. Further, using bulk and single-molecule fluorescence imaging, we reveal distinct receptor conformations upon allosteric modulator and G protein binding. #1: ジャーナル: bioRxiv / 年: 2023 タイトル: Step-wise activation of a Family C GPCR. 著者: Kaavya Krishna Kumar / Haoqing Wang / Chris Habrian / Naomi R Latorraca / Jun Xu / Evan S O'Brien / Chensong Zhang / Elizabeth Montabana / Antoine Koehl / Susan Marqusee / Ehud Y Isacoff / Brian K Kobilka / ![]() 要旨: Metabotropic glutamate receptors belong to a family of G protein-coupled receptors that are obligate dimers and possess a large extracellular ligand-binding domain (ECD) that is linked via a cysteine- ...Metabotropic glutamate receptors belong to a family of G protein-coupled receptors that are obligate dimers and possess a large extracellular ligand-binding domain (ECD) that is linked via a cysteine-rich domain (CRDs) to their 7-transmembrane (TM) domain. Upon activation, these receptors undergo a large conformational change to transmit the ligand binding signal from the ECD to the G protein-coupling TM. In this manuscript, we propose a model for a sequential, multistep activation mechanism of metabotropic glutamate receptor subtype 5. We present a series of structures in lipid nanodiscs, from inactive to fully active, including agonist-bound intermediate states. Further, using bulk and single-molecule fluorescence imaging we reveal distinct receptor conformations upon allosteric modulator and G protein binding. | |||||||||||||||||||||||||||||||||
| 履歴 |
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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 | 8t8m.cif.gz | 311.6 KB | 表示 | PDBx/mmCIF形式 |
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| PDB形式 | pdb8t8m.ent.gz | 242.2 KB | 表示 | PDB形式 |
| PDBx/mmJSON形式 | 8t8m.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/t8/8t8m ftp://data.pdbj.org/pub/pdb/validation_reports/t8/8t8m | HTTPS FTP |
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-関連構造データ
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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
| #1: タンパク質 | 分子量: 98868.297 Da / 分子数: 2 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 遺伝子: GRM5, GPRC1E, MGLUR5発現宿主: ![]() 参照: UniProt: P41594 #2: 抗体 | 分子量: 13354.672 Da / 分子数: 2 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() #3: 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: Metabotropic glutamate receptor 5 in complex with Quis タイプ: ORGANELLE OR CELLULAR COMPONENT / Entity ID: #1-#2 / 由来: MULTIPLE SOURCES |
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| 分子量 | 実験値: NO |
| 由来(天然) | 生物種: Homo sapiens (ヒト) |
| 由来(組換発現) | 生物種: ![]() |
| 緩衝液 | pH: 7.4 |
| 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: 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 / 最大 デフォーカス(公称値): 2000 nm / 最小 デフォーカス(公称値): 700 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: PHENIX / 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 | ||||||||||||||||||||||||
| 3次元再構成 | 解像度: 3 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 183295 / 対称性のタイプ: POINT | ||||||||||||||||||||||||
| 拘束条件 |
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万見について




Homo sapiens (ヒト)

米国, 1件
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FIELD EMISSION GUN