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基本情報
登録情報 | データベース: PDB / ID: 8jcx | |||||||||
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タイトル | Cryo-EM structure of mGlu2-mGlu3 heterodimer in presence of LY341495 and NAM563 (dimerization mode II) | |||||||||
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![]() | MEMBRANE PROTEIN / Complex structure / mGlu2-3 heterodimer | |||||||||
機能・相同性 | ![]() cellular component organization / regulation of cellular component organization / positive regulation of response to stimulus / regulation of response to drug / group II metabotropic glutamate receptor activity / regulation of cellular response to stress / macrolide binding / TORC2 complex / activin receptor binding / TORC1 complex ...cellular component organization / regulation of cellular component organization / positive regulation of response to stimulus / regulation of response to drug / group II metabotropic glutamate receptor activity / regulation of cellular response to stress / macrolide binding / TORC2 complex / activin receptor binding / TORC1 complex / cytoplasmic side of membrane / behavioral response to nicotine / intracellular glutamate homeostasis / signaling receptor inhibitor activity / 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 / G protein-coupled glutamate receptor signaling pathway / astrocyte projection / negative regulation of activin receptor signaling pathway / Class C/3 (Metabotropic glutamate/pheromone receptors) / heart trabecula formation / glutamate secretion / terminal cisterna / ryanodine receptor complex / I-SMAD binding / glutamate receptor activity / regulation of glutamate secretion / regulation of amyloid precursor protein catabolic process / long-term synaptic depression / protein maturation by protein folding / ventricular cardiac muscle tissue morphogenesis / 'de novo' protein folding / negative regulation of phosphoprotein phosphatase activity / postsynaptic modulation of chemical synaptic transmission / negative regulation of macroautophagy / FK506 binding / regulation of dopamine secretion / mTORC1-mediated signalling / TGF-beta receptor signaling activates SMADs / Calcineurin activates NFAT / calcium channel regulator activity / regulation of immune response / TOR signaling / protein peptidyl-prolyl isomerization / heart morphogenesis / supramolecular fiber organization / regulation of ryanodine-sensitive calcium-release channel activity / regulation of synaptic transmission, glutamatergic / sarcoplasmic reticulum membrane / T cell activation / positive regulation of protein metabolic process / presynaptic modulation of chemical synaptic transmission / TGF-beta receptor signaling in EMT (epithelial to mesenchymal transition) / response to cocaine / peptidylprolyl isomerase / sarcoplasmic reticulum / peptidyl-prolyl cis-trans isomerase activity / G protein-coupled receptor activity / calcium ion transmembrane transport / negative regulation of transforming growth factor beta receptor signaling pathway / Z disc / SARS-CoV-1 activates/modulates innate immune responses / regulation of protein localization / protein folding / positive regulation of protein binding / presynaptic membrane / gene expression / G alpha (i) signalling events / protein refolding / scaffold protein binding / chemical synaptic transmission / postsynaptic membrane / positive regulation of canonical NF-kappaB signal transduction / transmembrane transporter binding / amyloid fibril formation / Potential therapeutics for SARS / dendritic spine / postsynaptic density / positive regulation of phosphatidylinositol 3-kinase/protein kinase B signal transduction / non-specific serine/threonine protein kinase / phosphorylation / axon / protein serine/threonine kinase activity / glutamatergic synapse / dendrite / protein-containing complex binding / ATP binding / membrane / nucleus / plasma membrane / cytoplasm / cytosol 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: 3 Å | |||||||||
![]() | Wang, X. / Wang, M. / Xu, T. / Feng, Y. / Han, S. / Lin, S. / Zhao, Q. / Wu, B. | |||||||||
資金援助 | ![]()
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![]() | ![]() 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. | |||||||||
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構造の表示
構造ビューア | 分子: ![]() ![]() |
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PDBx/mmCIF形式 | ![]() | 276.5 KB | 表示 | ![]() |
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PDB形式 | ![]() | 201.9 KB | 表示 | ![]() |
PDBx/mmJSON形式 | ![]() | ツリー表示 | ![]() | |
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-検証レポート
文書・要旨 | ![]() | 541.3 KB | 表示 | ![]() |
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文書・詳細版 | ![]() | 552.6 KB | 表示 | |
XML形式データ | ![]() | 29.1 KB | 表示 | |
CIF形式データ | ![]() | 43.7 KB | 表示 | |
アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
-関連構造データ
関連構造データ | ![]() 36168MC ![]() 8jcuC ![]() 8jcvC ![]() 8jcwC ![]() 8jcyC ![]() 8jczC ![]() 8jd0C ![]() 8jd1C ![]() 8jd2C ![]() 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 ![]() |
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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) ![]() ![]() ![]() 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) ![]() ![]() ![]() 参照: UniProt: Q14832, UniProt: A0A8V8TRG9, non-specific serine/threonine protein kinase | ||||
#3: 糖 | #4: 化合物 | 研究の焦点であるリガンドがあるか | 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 LY341495 and NAM563 タイプ: COMPLEX / Entity ID: #1-#2 / 由来: MULTIPLE SOURCES |
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由来(天然) | 生物種: ![]() |
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: ![]() |
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: 3 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 590649 / 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: 78.04 Å2 | ||||||||||||||||||||||||
拘束条件 |
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