+
データを開く
-
基本情報
登録情報 | データベース: EMDB / ID: EMD-0347 | |||||||||
---|---|---|---|---|---|---|---|---|---|---|
タイトル | Apo form metabotropic glutamate receptor 5 with Nanobody 43 | |||||||||
![]() | Apo form metabotropic glutamate receptor 5 with Nanobody 43, primary map | |||||||||
![]() |
| |||||||||
機能・相同性 | ![]() A2A adenosine receptor binding / neurotransmitter receptor activity involved in regulation of postsynaptic cytosolic calcium ion concentration / 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 / positive regulation of long-term neuronal synaptic plasticity / desensitization of G protein-coupled receptor signaling pathway / G protein-coupled glutamate receptor signaling pathway / astrocyte projection / Class C/3 (Metabotropic glutamate/pheromone receptors) ...A2A adenosine receptor binding / neurotransmitter receptor activity involved in regulation of postsynaptic cytosolic calcium ion concentration / 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 / positive regulation of long-term neuronal synaptic plasticity / desensitization of G protein-coupled receptor signaling pathway / G protein-coupled glutamate receptor signaling pathway / astrocyte projection / Class C/3 (Metabotropic glutamate/pheromone receptors) / glutamate receptor activity / Neurexins and neuroligins / protein tyrosine kinase activator activity / regulation of synaptic transmission, glutamatergic / positive regulation of calcium-mediated signaling / dendritic shaft / protein tyrosine kinase binding / learning / locomotory behavior / synapse organization / postsynaptic density membrane / G protein-coupled receptor activity / Schaffer collateral - CA1 synapse / cognition / cellular response to amyloid-beta / chemical synaptic transmission / G alpha (q) signalling events / dendritic spine / learning or memory / positive regulation of MAPK cascade / neuronal cell body / dendrite / regulation of DNA-templated transcription / glutamatergic synapse / identical protein binding / plasma membrane / cytoplasm 類似検索 - 分子機能 | |||||||||
生物種 | ![]() ![]() ![]() | |||||||||
手法 | 単粒子再構成法 / クライオ電子顕微鏡法 / 解像度: 7.9 Å | |||||||||
![]() | Koehl A / Hu H / Feng D / Zhang Y / Sun B / Kobilka TS / Pardon E / Steyaert J / Mathiesen JM / Skiniotis G / Kobilka BK | |||||||||
![]() | ![]() タイトル: Structural insights into the activation of metabotropic glutamate receptors. 著者: Antoine Koehl / Hongli Hu / Dan Feng / Bingfa Sun / Yan Zhang / Michael J Robertson / Matthew Chu / Tong Sun Kobilka / Toon Laeremans / Jan Steyaert / Jeffrey Tarrasch / Somnath Dutta / ...著者: Antoine Koehl / Hongli Hu / Dan Feng / Bingfa Sun / Yan Zhang / Michael J Robertson / Matthew Chu / Tong Sun Kobilka / Toon Laeremans / Jan Steyaert / Jeffrey Tarrasch / Somnath Dutta / Rasmus Fonseca / William I Weis / Jesper M Mathiesen / Georgios Skiniotis / Brian K Kobilka / ![]() ![]() ![]() ![]() 要旨: Metabotropic glutamate receptors are family C G-protein-coupled receptors. They form obligate dimers and possess extracellular ligand-binding Venus flytrap domains, which are linked by cysteine-rich ...Metabotropic glutamate receptors are family C G-protein-coupled receptors. They form obligate dimers and possess extracellular ligand-binding Venus flytrap domains, which are linked by cysteine-rich domains to their 7-transmembrane domains. Spectroscopic studies show that signalling is a dynamic process, in which large-scale conformational changes underlie the transmission of signals from the extracellular Venus flytraps to the G protein-coupling domains-the 7-transmembrane domains-in the membrane. Here, using a combination of X-ray crystallography, cryo-electron microscopy and signalling studies, we present a structural framework for the activation mechanism of metabotropic glutamate receptor subtype 5. Our results show that agonist binding at the Venus flytraps leads to a compaction of the intersubunit dimer interface, thereby bringing the cysteine-rich domains into close proximity. Interactions between the cysteine-rich domains and the second extracellular loops of the receptor enable the rigid-body repositioning of the 7-transmembrane domains, which come into contact with each other to initiate signalling. | |||||||||
履歴 |
|
-
構造の表示
ムービー |
![]() |
---|---|
構造ビューア | EMマップ: ![]() ![]() ![]() |
添付画像 |
-
ダウンロードとリンク
-EMDBアーカイブ
マップデータ | ![]() | 2.6 MB | ![]() | |
---|---|---|---|---|
ヘッダ (付随情報) | ![]() ![]() | 14 KB 14 KB | 表示 表示 | ![]() |
画像 | ![]() | 30.8 KB | ||
アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
-関連構造データ
-
リンク
EMDBのページ | ![]() ![]() |
---|---|
「今月の分子」の関連する項目 |
-
マップ
ファイル | ![]() | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
注釈 | Apo form metabotropic glutamate receptor 5 with Nanobody 43, primary map | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
投影像・断面図 | 画像のコントロール
画像は Spider により作成 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
ボクセルのサイズ | X=Y=Z: 2.58 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
密度 |
| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
対称性 | 空間群: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
詳細 | EMDB XML:
CCP4マップ ヘッダ情報:
|
-添付データ
-
試料の構成要素
-全体 : Metabotropic Glutamate Receptor 5 - Nb43 Complex
全体 | 名称: Metabotropic Glutamate Receptor 5 - Nb43 Complex |
---|---|
要素 |
|
-超分子 #1: Metabotropic Glutamate Receptor 5 - Nb43 Complex
超分子 | 名称: Metabotropic Glutamate Receptor 5 - Nb43 Complex / タイプ: complex / ID: 1 / 親要素: 0 / 含まれる分子: all 詳細: Complex between metabotropic glutamate receptor 5 and Nb43 |
---|---|
由来(天然) | 生物種: ![]() |
組換発現 | 生物種: ![]() ![]() 組換株: SF9 |
分子量 | 理論値: 220 KDa |
-分子 #1: Metabotropic Glutamate Receptor 5
分子 | 名称: Metabotropic Glutamate Receptor 5 / タイプ: protein_or_peptide / ID: 1 詳細: Polypeptide encoding metabotropic glutamate receptor 5 光学異性体: LEVO |
---|---|
由来(天然) | 生物種: ![]() |
組換発現 | 生物種: ![]() ![]() |
配列 | 文字列: QSSERRVVAH MPGDIIIGAL FSVHHQPTVD KVHERKCGAV REQYGIQRV EAMLHTLERI NSDPTLLPNI TLGCEIRDSC WHSAVALEQS IEFIRDSLIS S EEEEGLVR CVDGSSSSFR SKKPIVGVIG PGSSSVAIQV QNLLQLFNIP QIAYSATSMD LS DKTLFKY ...文字列: QSSERRVVAH MPGDIIIGAL FSVHHQPTVD KVHERKCGAV REQYGIQRV EAMLHTLERI NSDPTLLPNI TLGCEIRDSC WHSAVALEQS IEFIRDSLIS S EEEEGLVR CVDGSSSSFR SKKPIVGVIG PGSSSVAIQV QNLLQLFNIP QIAYSATSMD LS DKTLFKY FMRVVPSDAQ QARAMVDIVK RYNWTYVSAV HTEGNYGESG MEAFKDMSAK EGI CIAHSY KIYSNAGEQS FDKLLKKLTS HLPKARVVAC FCEGMTVRGL LMAMRRLGLA GEFL LLGSD GWADRYDVTD GYQREAVGGI TIKLQSPDVK WFDDYYLKLR PETNHRNPWF QEFWQ HRFQ CRLEGFPQEN SKYNKTCNSS LTLKTHHVQD SKMGFVINAI YSMAYGLHNM QMSLCP GYA GLCDAMKPID GRKLLESLMK TNFTGVSGDT ILFDENGDSP GRYEIMNFKE MGKDYFD YI NVGSWDNGEL KMDDDEVWSK KSNIIRSVCS EPCEKGQIKV IRKGEVSCCW TCTPCKEN E YVFDEYTCKA CQLGSWPTDD LTGCDLIPVQ YLRWGDPEPI AAVVFACLGL LATLFVTVV FIIYRDTPVV KSSSRELCYI ILAGICLGYL CTFCLIAKPK QIYCYLQRIG IGLSPAMSYS ALVTKTNRI ARILAGSKKK ICTKKPRFMS ACAQLVIAFI LICIQLGIIV ALFIMEPPDI M HDYPSIRE VYLICNTTNL GVVTPLGYNG LLILSCTFYA FKTRNVPANF NEAKYIAFTM YT TCIIWLA FVPIYFGSNY KIITMCFSVS LSATVALGCM FVPKVYIILA KPERNVRSAF TTS TVVRMH VGDGKSSSAA SRSSSLVNL |
-分子 #2: Nanobody 43
分子 | 名称: Nanobody 43 / タイプ: protein_or_peptide / ID: 2 / 詳細: Nanobody 43 / 光学異性体: LEVO |
---|---|
由来(天然) | 生物種: ![]() ![]() |
組換発現 | 生物種: ![]() ![]() |
配列 | 文字列: QVQLVESGGG LVQAGGSLRL SCAASGRTFT SYAMGWFRQA PGKERESVAA ISSSGGSTHY ADSVKGRFTI SRDNSKNTVY LQMNSLKPED TAVYYCAAAM YGSRWPDWEY DYWGQGTQVT VSSAA |
-実験情報
-構造解析
手法 | クライオ電子顕微鏡法 |
---|---|
![]() | 単粒子再構成法 |
試料の集合状態 | particle |
-
試料調製
濃度 | 10 mg/mL | |||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
緩衝液 | pH: 7.5 構成要素:
| |||||||||||||||
グリッド | モデル: Quantifoil R1.2/1.3 / 材質: GOLD / メッシュ: 200 / 前処理 - タイプ: GLOW DISCHARGE | |||||||||||||||
凍結 | 凍結剤: ETHANE | |||||||||||||||
詳細 | Sample was mono disperse as assayed by gel filtration and SDS PAGE. |
-
電子顕微鏡法
顕微鏡 | FEI TITAN KRIOS |
---|---|
撮影 | フィルム・検出器のモデル: GATAN K2 SUMMIT (4k x 4k) 検出モード: COUNTING / 平均電子線量: 50.0 e/Å2 |
電子線 | 加速電圧: 300 kV / 電子線源: ![]() |
電子光学系 | C2レンズ絞り径: 50.0 µm / 倍率(補正後): 58139 / 照射モード: FLOOD BEAM / 撮影モード: BRIGHT FIELD / 倍率(公称値): 29000 |
実験機器 | ![]() モデル: Titan Krios / 画像提供: FEI Company |
-
画像解析
初期モデル | モデルのタイプ: OTHER / 詳細: The apo structure was used as starting model. |
---|---|
最終 再構成 | 解像度のタイプ: BY AUTHOR / 解像度: 7.9 Å / 解像度の算出法: FSC 0.143 CUT-OFF / ソフトウェア - 名称: RELION (ver. 2.1) / 使用した粒子像数: 44831 |
初期 角度割当 | タイプ: RANDOM ASSIGNMENT |
最終 角度割当 | タイプ: MAXIMUM LIKELIHOOD |