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基本情報
登録情報 | データベース: PDB / ID: 8jcy | |||||||||
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タイトル | Cryo-EM structure of mGlu2-mGlu3 heterodimer in presence of LY341495, NAM563, and LY2389575 (dimerization mode I) | |||||||||
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![]() | MEMBRANE PROTEIN / Complex structure / mGlu2-3 heterodimer | |||||||||
機能・相同性 | ![]() regulation of cellular component organization / regulation of response to drug / group II metabotropic glutamate receptor activity / regulation of cellular response to stress / macrolide binding / TORC1 complex / activin receptor binding / regulation of skeletal muscle contraction by regulation of release of sequestered calcium ion / cytoplasmic side of membrane / transforming growth factor beta receptor binding ...regulation of cellular component organization / regulation of response to drug / group II metabotropic glutamate receptor activity / regulation of cellular response to stress / macrolide binding / TORC1 complex / activin receptor binding / regulation of skeletal muscle contraction by regulation of release of sequestered calcium ion / cytoplasmic side of membrane / transforming growth factor beta receptor binding / intracellular glutamate homeostasis / behavioral response to nicotine / TGFBR1 LBD Mutants in Cancer / type I transforming growth factor beta receptor binding / G protein-coupled glutamate receptor signaling pathway / negative regulation of activin receptor signaling pathway / astrocyte projection / negative regulation of adenylate cyclase activity / heart trabecula formation / Class C/3 (Metabotropic glutamate/pheromone receptors) / I-SMAD binding / glutamate receptor activity / signaling receptor inhibitor activity / regulation of amyloid precursor protein catabolic process / terminal cisterna / ryanodine receptor complex / glutamate secretion / regulation of glutamate secretion / long-term synaptic depression / : / 'de novo' protein folding / cellular response to stress / ventricular cardiac muscle tissue morphogenesis / FK506 binding / channel regulator activity / protein peptidyl-prolyl isomerization / regulation of dopamine secretion / TGF-beta receptor signaling activates SMADs / mTORC1-mediated signalling / Calcineurin activates NFAT / regulation of ryanodine-sensitive calcium-release channel activity / calcium channel regulator activity / regulation of immune response / postsynaptic modulation of chemical synaptic transmission / heart morphogenesis / regulation of synaptic transmission, glutamatergic / supramolecular fiber organization / sarcoplasmic reticulum membrane / positive regulation of protein metabolic process / presynaptic modulation of chemical synaptic transmission / negative regulation of autophagy / sarcoplasmic reticulum / peptidyl-prolyl cis-trans isomerase activity / TGF-beta receptor signaling in EMT (epithelial to mesenchymal transition) / T cell activation / RNA polymerase II CTD heptapeptide repeat P3 isomerase activity / RNA polymerase II CTD heptapeptide repeat P6 isomerase activity / peptidylprolyl isomerase / negative regulation of transforming growth factor beta receptor signaling pathway / response to cocaine / G protein-coupled receptor activity / calcium ion transmembrane transport / Z disc / SARS-CoV-1 activates/modulates innate immune responses / positive regulation of protein binding / protein folding / regulation of protein localization / presynaptic membrane / protein refolding / scaffold protein binding / G alpha (i) signalling events / gene expression / chemical synaptic transmission / positive regulation of canonical NF-kappaB signal transduction / postsynaptic membrane / dendritic spine / amyloid fibril formation / transmembrane transporter binding / Potential therapeutics for SARS / positive regulation of phosphatidylinositol 3-kinase/protein kinase B signal transduction / non-specific serine/threonine protein kinase / postsynaptic density / axon / protein serine/threonine kinase activity / dendrite / protein-containing complex binding / glutamatergic synapse / ATP binding / membrane / plasma membrane / cytosol / cytoplasm 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: 2.9 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 | ![]() | 283.7 KB | 表示 | ![]() |
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PDB形式 | ![]() | 206.8 KB | 表示 | ![]() |
PDBx/mmJSON形式 | ![]() | ツリー表示 | ![]() | |
その他 | ![]() |
-検証レポート
文書・要旨 | ![]() | 757.4 KB | 表示 | ![]() |
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文書・詳細版 | ![]() | 770.1 KB | 表示 | |
XML形式データ | ![]() | 29.9 KB | 表示 | |
CIF形式データ | ![]() | 44.7 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 | ![]() 36169MC ![]() 8jcuC ![]() 8jcvC ![]() 8jcwC ![]() 8jcxC ![]() 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 | #5: 化合物 | ChemComp-CLR / 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 LY341495, NAM563, and LY2389575 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: 2.9 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 1162068 / 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: 31 Å2 | ||||||||||||||||||||||||
拘束条件 |
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