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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: 8jd2 | |||||||||
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| タイトル | Cryo-EM structure of G protein-free mGlu2-mGlu3 heterodimer in Acc state | |||||||||
要素 |
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キーワード | MEMBRANE PROTEIN / Complex structure / mGlu2-3 heterodimer | |||||||||
| 機能・相同性 | 機能・相同性情報positive regulation of biosynthetic process / positive regulation of multicellular organismal process / regulation of response to drug / group II metabotropic glutamate receptor activity / regulation of phosphatidylinositol 3-kinase/protein kinase B signal transduction / macrolide binding / TORC1 complex / activin receptor binding / regulation of skeletal muscle contraction by regulation of release of sequestered calcium ion / intracellular glutamate homeostasis ...positive regulation of biosynthetic process / positive regulation of multicellular organismal process / regulation of response to drug / group II metabotropic glutamate receptor activity / regulation of phosphatidylinositol 3-kinase/protein kinase B signal transduction / macrolide binding / TORC1 complex / activin receptor binding / regulation of skeletal muscle contraction by regulation of release of sequestered calcium ion / intracellular glutamate homeostasis / regulation of cellular response to stress / cytoplasmic side of membrane / behavioral response to nicotine / transforming growth factor beta receptor binding / TGFBR1 LBD Mutants in Cancer / type I transforming growth factor beta receptor binding / negative regulation of adenylate cyclase activity / negative regulation of activin receptor signaling pathway / signaling receptor inhibitor activity / G protein-coupled glutamate receptor signaling pathway / heart trabecula formation / I-SMAD binding / Class C/3 (Metabotropic glutamate/pheromone receptors) / glutamate secretion / regulation of amyloid precursor protein catabolic process / terminal cisterna / ryanodine receptor complex / glutamate receptor activity / long-term synaptic depression / 'de novo' protein folding / regulation of cell size / regulation of glutamate secretion / astrocyte projection / ventricular cardiac muscle tissue morphogenesis / FK506 binding / cellular response to stress / TGF-beta receptor signaling activates SMADs / regulation of dopamine secretion / regulation of lipid metabolic process / mTORC1-mediated signalling / Calcineurin activates NFAT / regulation of immune response / postsynaptic modulation of chemical synaptic transmission / heart morphogenesis / regulation of synaptic transmission, glutamatergic / phagocytic vesicle / supramolecular fiber organization / regulation of cardiac muscle contraction by regulation of the release of sequestered calcium ion / sarcoplasmic reticulum membrane / presynaptic modulation of chemical synaptic transmission / T cell activation / negative regulation of autophagy / TGF-beta receptor signaling in EMT (epithelial to mesenchymal transition) / sarcoplasmic reticulum / peptidylprolyl isomerase / peptidyl-prolyl cis-trans isomerase activity / response to cocaine / calcium channel regulator activity / positive regulation of cell differentiation / non-membrane spanning protein tyrosine kinase activity / negative regulation of transforming growth factor beta receptor signaling pathway / protein maturation / PML body / G protein-coupled receptor activity / Z disc / SARS-CoV-1 activates/modulates innate immune responses / regulation of protein localization / protein refolding / protein folding / presynaptic membrane / scaffold protein binding / G alpha (i) signalling events / gene expression / Potential therapeutics for SARS / amyloid fibril formation / dendritic spine / chemical synaptic transmission / transmembrane transporter binding / mitochondrial outer membrane / postsynaptic membrane / positive regulation of canonical NF-kappaB signal transduction / non-specific serine/threonine protein kinase / positive regulation of phosphatidylinositol 3-kinase/protein kinase B signal transduction / postsynaptic density / Golgi membrane / axon / lysosomal membrane / protein serine/threonine kinase activity / dendrite / endoplasmic reticulum membrane / protein-containing complex binding / glutamatergic synapse / ATP binding / membrane / plasma membrane / cytoplasm / cytosol 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: 2.8 Å | |||||||||
データ登録者 | Wang, X. / Wang, M. / Xu, T. / Feng, Y. / Han, S. / Lin, S. / Zhao, Q. / Wu, B. | |||||||||
| 資金援助 | 中国, 2件
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引用 | ジャーナル: Cell Res / 年: 2023タイトル: Structural insights into dimerization and activation of the mGlu2-mGlu3 and mGlu2-mGlu4 heterodimers. 著者: Xinwei Wang / Mu Wang / Tuo Xu / Ye Feng / Qiang Shao / Shuo Han / Xiaojing Chu / Yechun Xu / Shuling Lin / Qiang Zhao / Beili Wu / ![]() 要旨: Heterodimerization of the metabotropic glutamate receptors (mGlus) has shown importance in the functional modulation of the receptors and offers potential drug targets for treating central nervous ...Heterodimerization of the metabotropic glutamate receptors (mGlus) has shown importance in the functional modulation of the receptors and offers potential drug targets for treating central nervous system diseases. However, due to a lack of molecular details of the mGlu heterodimers, understanding of the mechanisms underlying mGlu heterodimerization and activation is limited. Here we report twelve cryo-electron microscopy (cryo-EM) structures of the mGlu2-mGlu3 and mGlu2-mGlu4 heterodimers in different conformational states, including inactive, intermediate inactive, intermediate active and fully active conformations. These structures provide a full picture of conformational rearrangement of mGlu2-mGlu3 upon activation. The Venus flytrap domains undergo a sequential conformational change, while the transmembrane domains exhibit a substantial rearrangement from an inactive, symmetric dimer with diverse dimerization patterns to an active, asymmetric dimer in a conserved dimerization mode. Combined with functional data, these structures reveal that stability of the inactive conformations of the subunits and the subunit-G protein interaction pattern are determinants of asymmetric signal transduction of the heterodimers. Furthermore, a novel binding site for two mGlu4 positive allosteric modulators was observed in the asymmetric dimer interfaces of the mGlu2-mGlu4 heterodimer and mGlu4 homodimer, and may serve as a drug recognition site. These findings greatly extend our knowledge about signal transduction of the mGlus. | |||||||||
| 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 | 8jd2.cif.gz | 303.4 KB | 表示 | PDBx/mmCIF形式 |
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| PDB形式 | pdb8jd2.ent.gz | 222.1 KB | 表示 | PDB形式 |
| PDBx/mmJSON形式 | 8jd2.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/jd/8jd2 ftp://data.pdbj.org/pub/pdb/validation_reports/jd/8jd2 | HTTPS FTP |
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-関連構造データ
| 関連構造データ | ![]() 36173MC ![]() 8jcuC ![]() 8jcvC ![]() 8jcwC ![]() 8jcxC ![]() 8jcyC ![]() 8jczC ![]() 8jd0C ![]() 8jd1C ![]() 8jd3C ![]() 8jd4C ![]() 8jd5C ![]() 8jd6C 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
| #1: タンパク質 | 分子量: 109398.914 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 遺伝子: GRM2, GPRC1B, MGLUR2, FKBP1A, FKBP1, FKBP12 / 発現宿主: ![]() 参照: UniProt: Q14416, UniProt: P62942, peptidylprolyl isomerase | ||||||
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| #2: タンパク質 | 分子量: 112712.961 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 遺伝子: GRM3, GPRC1C, MGLUR3, MTOR / 発現宿主: ![]() 参照: UniProt: Q14832, UniProt: A0A8V8TRG9, non-specific serine/threonine protein kinase | ||||||
| #3: 化合物 | | #4: 糖 | 研究の焦点であるリガンドがあるか | Y | 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: mGlu2-3 heterodimer in presence of glutamate, JNJ-40411813, and CaCl2 タイプ: COMPLEX / Entity ID: #1-#2 / 由来: MULTIPLE SOURCES |
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| 由来(天然) | 生物種: Homo sapiens (ヒト) |
| 由来(組換発現) | 生物種: ![]() |
| 緩衝液 | pH: 7.5 |
| 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: SPOT SCAN |
| 電子レンズ | モード: BRIGHT FIELD / 最大 デフォーカス(公称値): 1500 nm / 最小 デフォーカス(公称値): 800 nm |
| 撮影 | 電子線照射量: 70 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
| CTF補正 | タイプ: NONE | ||||||||||||||||||||||||
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| 3次元再構成 | 解像度: 2.8 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 890025 / 対称性のタイプ: POINT | ||||||||||||||||||||||||
| 精密化 | 立体化学のターゲット値: GeoStd + Monomer Library + CDL v1.2 | ||||||||||||||||||||||||
| 原子変位パラメータ | Biso mean: 52.93 Å2 | ||||||||||||||||||||||||
| 拘束条件 |
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ムービー
コントローラー
万見について




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