+データを開く
-基本情報
登録情報 | データベース: PDB / ID: 6li3 | ||||||
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タイトル | cryo-EM structure of GPR52-miniGs-NB35 | ||||||
要素 |
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キーワード | MEMBRANE PROTEIN / G-protein coupled receptor / orphan GPCR / self-activation / cryo-EM | ||||||
機能・相同性 | 機能・相同性情報 G protein-coupled photoreceptor activity / cellular response to light stimulus / PKA activation in glucagon signalling / phototransduction / hair follicle placode formation / developmental growth / D1 dopamine receptor binding / intracellular transport / renal water homeostasis / Hedgehog 'off' state ...G protein-coupled photoreceptor activity / cellular response to light stimulus / PKA activation in glucagon signalling / phototransduction / hair follicle placode formation / developmental growth / D1 dopamine receptor binding / intracellular transport / renal water homeostasis / Hedgehog 'off' state / adenylate cyclase-activating adrenergic receptor signaling pathway / activation of adenylate cyclase activity / cellular response to glucagon stimulus / adenylate cyclase activator activity / regulation of insulin secretion / trans-Golgi network membrane / locomotory behavior / G protein-coupled receptor activity / negative regulation of inflammatory response to antigenic stimulus / bone development / G-protein beta/gamma-subunit complex binding / Olfactory Signaling Pathway / Activation of the phototransduction cascade / adenylate cyclase-activating G protein-coupled receptor signaling pathway / G beta:gamma signalling through PLC beta / Presynaptic function of Kainate receptors / Thromboxane signalling through TP receptor / G protein-coupled acetylcholine receptor signaling pathway / G protein activity / G-protein activation / Activation of G protein gated Potassium channels / Inhibition of voltage gated Ca2+ channels via Gbeta/gamma subunits / platelet aggregation / Prostacyclin signalling through prostacyclin receptor / Glucagon signaling in metabolic regulation / G beta:gamma signalling through CDC42 / cognition / G beta:gamma signalling through BTK / ADP signalling through P2Y purinoceptor 12 / Sensory perception of sweet, bitter, and umami (glutamate) taste / Synthesis, secretion, and inactivation of Glucagon-like Peptide-1 (GLP-1) / photoreceptor disc membrane / Glucagon-type ligand receptors / Adrenaline,noradrenaline inhibits insulin secretion / Vasopressin regulates renal water homeostasis via Aquaporins / G alpha (z) signalling events / Glucagon-like Peptide-1 (GLP1) regulates insulin secretion / ADORA2B mediated anti-inflammatory cytokines production / cellular response to catecholamine stimulus / sensory perception of taste / ADP signalling through P2Y purinoceptor 1 / G beta:gamma signalling through PI3Kgamma / adenylate cyclase-activating dopamine receptor signaling pathway / Cooperation of PDCL (PhLP1) and TRiC/CCT in G-protein beta folding / GPER1 signaling / cellular response to prostaglandin E stimulus / G-protein beta-subunit binding / Inactivation, recovery and regulation of the phototransduction cascade / heterotrimeric G-protein complex / sensory perception of smell / G alpha (12/13) signalling events / extracellular vesicle / signaling receptor complex adaptor activity / Thrombin signalling through proteinase activated receptors (PARs) / GTPase binding / positive regulation of cold-induced thermogenesis / retina development in camera-type eye / Ca2+ pathway / phospholipase C-activating G protein-coupled receptor signaling pathway / G alpha (i) signalling events / fibroblast proliferation / G alpha (s) signalling events / 加水分解酵素; 酸無水物に作用; GTPに作用・細胞または細胞小器官の運動に関与 / G alpha (q) signalling events / Ras protein signal transduction / cell population proliferation / Extra-nuclear estrogen signaling / response to xenobiotic stimulus / G protein-coupled receptor signaling pathway / lysosomal membrane / GTPase activity / synapse / protein-containing complex binding / GTP binding / signal transduction / extracellular exosome / membrane / metal ion binding / plasma membrane / cytosol / cytoplasm 類似検索 - 分子機能 | ||||||
生物種 | Homo sapiens (ヒト) Lama glama (ラマ) | ||||||
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: 3.32 Å | ||||||
データ登録者 | Li, M. / Wang, N. / Xu, F. / Wu, J. / Lei, M. | ||||||
引用 | ジャーナル: Nature / 年: 2020 タイトル: Structural basis of ligand recognition and self-activation of orphan GPR52. 著者: Xi Lin / Mingyue Li / Niandong Wang / Yiran Wu / Zhipu Luo / Shimeng Guo / Gye-Won Han / Shaobai Li / Yang Yue / Xiaohu Wei / Xin Xie / Yong Chen / Suwen Zhao / Jian Wu / Ming Lei / Fei Xu / 要旨: GPR52 is a class-A orphan G-protein-coupled receptor that is highly expressed in the brain and represents a promising therapeutic target for the treatment of Huntington's disease and several ...GPR52 is a class-A orphan G-protein-coupled receptor that is highly expressed in the brain and represents a promising therapeutic target for the treatment of Huntington's disease and several psychiatric disorders. Pathological malfunction of GPR52 signalling occurs primarily through the heterotrimeric G protein, but it is unclear how GPR52 and G couple for signal transduction and whether a native ligand or other activating input is required. Here we present the high-resolution structures of human GPR52 in three states: a ligand-free state, a G-coupled self-activation state and a potential allosteric ligand-bound state. Together, our structures reveal that extracellular loop 2 occupies the orthosteric binding pocket and operates as a built-in agonist, conferring an intrinsically high level of basal activity to GPR52. A fully active state is achieved when G is coupled to GPR52 in the absence of an external agonist. The receptor also features a side pocket for ligand binding. These insights into the structure and function of GPR52 could improve our understanding of other self-activated GPCRs, enable the identification of endogenous and tool ligands, and guide drug discovery efforts that target GPR52. | ||||||
履歴 |
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-構造の表示
ムービー |
ムービービューア |
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構造ビューア | 分子: MolmilJmol/JSmol |
-ダウンロードとリンク
-ダウンロード
PDBx/mmCIF形式 | 6li3.cif.gz | 190.8 KB | 表示 | PDBx/mmCIF形式 |
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PDB形式 | pdb6li3.ent.gz | 155.4 KB | 表示 | PDB形式 |
PDBx/mmJSON形式 | 6li3.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
文書・要旨 | 6li3_validation.pdf.gz | 813.4 KB | 表示 | wwPDB検証レポート |
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文書・詳細版 | 6li3_full_validation.pdf.gz | 822 KB | 表示 | |
XML形式データ | 6li3_validation.xml.gz | 33.4 KB | 表示 | |
CIF形式データ | 6li3_validation.cif.gz | 49.5 KB | 表示 | |
アーカイブディレクトリ | https://data.pdbj.org/pub/pdb/validation_reports/li/6li3 ftp://data.pdbj.org/pub/pdb/validation_reports/li/6li3 | HTTPS FTP |
-関連構造データ
-リンク
-集合体
登録構造単位 |
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-要素
#1: タンパク質 | 分子量: 39128.777 Da / 分子数: 1 / 変異: A130W, C314P / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 遺伝子: GPR52 発現宿主: Spodoptera frugiperda (ツマジロクサヨトウ) 参照: UniProt: Q9Y2T5 |
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#2: タンパク質 | 分子量: 28907.684 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: GNAS, GNAS1, GSP / プラスミド: pET15b / 発現宿主: Escherichia coli BL21(DE3) (大腸菌) / 株 (発現宿主): BL21(DE3) / 参照: UniProt: P63092 |
#3: タンパク質 | 分子量: 37416.930 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: GNB1 発現宿主: Spodoptera frugiperda (ツマジロクサヨトウ) 参照: UniProt: P62873 |
#4: タンパク質 | 分子量: 7845.078 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: GNG2 発現宿主: Spodoptera frugiperda (ツマジロクサヨトウ) 参照: UniProt: P59768 |
#5: 抗体 | 分子量: 16054.232 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) Lama glama (ラマ) / プラスミド: pET26b / 発現宿主: Escherichia coli BL21(DE3) (大腸菌) / 株 (発現宿主): BL21(DE3) |
-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 |
-試料調製
構成要素 |
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由来(天然) |
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由来(組換発現) |
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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 |
-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 |
撮影 | 電子線照射量: 40 e/Å2 フィルム・検出器のモデル: FEI FALCON III (4k x 4k) |
-解析
CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION |
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3次元再構成 | 解像度: 3.32 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 651465 / 対称性のタイプ: POINT |