+データを開く
-基本情報
登録情報 | データベース: PDB / ID: 8dpg | ||||||
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タイトル | Cryo-EM structure of the 5HT2C receptor (INI isoform) bound to psilocin | ||||||
要素 |
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キーワード | MEMBRANE PROTEIN (膜タンパク質) / GPCR (Gタンパク質共役受容体) | ||||||
機能・相同性 | 機能・相同性情報 regulation of corticotropin-releasing hormone secretion / 1-(4-iodo-2,5-dimethoxyphenyl)propan-2-amine binding / Gq/11-coupled serotonin receptor activity / phospholipase C-activating serotonin receptor signaling pathway / positive regulation of phosphatidylinositol biosynthetic process / G protein-coupled serotonin receptor signaling pathway / G protein-coupled serotonin receptor complex / regulation of appetite / regulation of nervous system process / セロトニン受容体 ...regulation of corticotropin-releasing hormone secretion / 1-(4-iodo-2,5-dimethoxyphenyl)propan-2-amine binding / Gq/11-coupled serotonin receptor activity / phospholipase C-activating serotonin receptor signaling pathway / positive regulation of phosphatidylinositol biosynthetic process / G protein-coupled serotonin receptor signaling pathway / G protein-coupled serotonin receptor complex / regulation of appetite / regulation of nervous system process / セロトニン受容体 / serotonin binding / G protein-coupled serotonin receptor activity / feeding behavior / neurotransmitter receptor activity / cGMP-mediated signaling / G protein-coupled receptor signaling pathway, coupled to cyclic nucleotide second messenger / positive regulation of fat cell differentiation / behavioral fear response / positive regulation of calcium-mediated signaling / release of sequestered calcium ion into cytosol / locomotory behavior / Olfactory Signaling Pathway / Activation of the phototransduction cascade / G beta:gamma signalling through PLC beta / Presynaptic function of Kainate receptors / Thromboxane signalling through TP receptor / G-protein activation / G protein-coupled acetylcholine receptor signaling pathway / Activation of G protein gated Potassium channels / Inhibition of voltage gated Ca2+ channels via Gbeta/gamma subunits / Prostacyclin signalling through prostacyclin receptor / Glucagon signaling in metabolic regulation / G beta:gamma signalling through CDC42 / ADP signalling through P2Y purinoceptor 12 / G beta:gamma signalling through BTK / Synthesis, secretion, and inactivation of Glucagon-like Peptide-1 (GLP-1) / Sensory perception of sweet, bitter, and umami (glutamate) taste / photoreceptor disc membrane / Adrenaline,noradrenaline inhibits insulin secretion / Glucagon-type ligand receptors / Vasopressin regulates renal water homeostasis via Aquaporins / G alpha (z) signalling events / cellular response to catecholamine stimulus / Glucagon-like Peptide-1 (GLP1) regulates insulin secretion / intracellular calcium ion homeostasis / ADORA2B mediated anti-inflammatory cytokines production / sensory perception of taste / ADP signalling through P2Y purinoceptor 1 / adenylate cyclase-activating dopamine receptor signaling pathway / G beta:gamma signalling through PI3Kgamma / cellular response to prostaglandin E stimulus / Cooperation of PDCL (PhLP1) and TRiC/CCT in G-protein beta folding / GPER1 signaling / G-protein beta-subunit binding / Inactivation, recovery and regulation of the phototransduction cascade / heterotrimeric G-protein complex / G alpha (12/13) signalling events / extracellular vesicle / signaling receptor complex adaptor activity / Thrombin signalling through proteinase activated receptors (PARs) / retina development in camera-type eye / GTPase binding / phospholipase C-activating G protein-coupled receptor signaling pathway / Ca2+ pathway / G alpha (i) signalling events / fibroblast proliferation / G alpha (s) signalling events / G alpha (q) signalling events / chemical synaptic transmission / cell population proliferation / Ras protein signal transduction / Extra-nuclear estrogen signaling / positive regulation of ERK1 and ERK2 cascade / G protein-coupled receptor signaling pathway / lysosomal membrane / GTPase activity / シナプス / 樹状突起 / protein-containing complex binding / シグナル伝達 / extracellular exosome / 生体膜 / identical protein binding / 細胞膜 / 細胞質基質 / 細胞質 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: 3.6 Å | ||||||
データ登録者 | Gumpper, R.H. / Fay, J.F. / Roth, B.L. | ||||||
資金援助 | 米国, 1件
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引用 | ジャーナル: Cell Rep / 年: 2022 タイトル: Molecular insights into the regulation of constitutive activity by RNA editing of 5HT serotonin receptors. 著者: Ryan H Gumpper / Jonathan F Fay / Bryan L Roth / 要旨: RNA editing is a process by which post-transcriptional changes of mRNA nucleotides alter protein function through modification of the amino acid content. The 5HT serotonin receptor, which undergoes ...RNA editing is a process by which post-transcriptional changes of mRNA nucleotides alter protein function through modification of the amino acid content. The 5HT serotonin receptor, which undergoes 32 distinct RNA-editing events leading to 24 protein isoforms, is a notable example of this process. These 5HT isoforms display differences in constitutive activity, agonist/inverse agonist potencies, and efficacies. To elucidate the molecular mechanisms responsible for these effects of RNA editing, we present four active-state 5HT-transducer-coupled structures of three representative isoforms (INI, VGV, and VSV) with the selective drug lorcaserin (Belviq) and the classic psychedelic psilocin. We also provide a comprehensive analysis of agonist activation and constitutive activity across all 24 protein isoforms. Collectively, these findings reveal a unique hydrogen-bonding network located on intracellular loop 2 that is subject to RNA editing, which differentially affects GPCR constitutive and agonist signaling activities. | ||||||
履歴 |
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-構造の表示
構造ビューア | 分子: MolmilJmol/JSmol |
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-ダウンロードとリンク
-ダウンロード
PDBx/mmCIF形式 | 8dpg.cif.gz | 200.3 KB | 表示 | PDBx/mmCIF形式 |
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PDB形式 | pdb8dpg.ent.gz | 154.6 KB | 表示 | PDB形式 |
PDBx/mmJSON形式 | 8dpg.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/dp/8dpg ftp://data.pdbj.org/pub/pdb/validation_reports/dp/8dpg | HTTPS FTP |
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-関連構造データ
-リンク
-集合体
登録構造単位 |
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1 |
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-要素
-タンパク質 , 2種, 2分子 AB
#1: タンパク質 | 分子量: 51876.066 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: HTR2C, HTR1C 発現宿主: Spodoptera frugiperda (ツマジロクサヨトウ) 参照: UniProt: P28335 |
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#2: タンパク質 | 分子量: 28084.832 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) 発現宿主: Spodoptera frugiperda (ツマジロクサヨトウ) |
-Guanine nucleotide-binding protein ... , 2種, 2分子 CD
#3: タンパク質 | 分子量: 39418.086 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 |
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#4: タンパク質 | 分子量: 7861.143 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 |
-抗体 , 1種, 1分子 E
#5: 抗体 | 分子量: 28668.922 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) 発現宿主: Spodoptera frugiperda (ツマジロクサヨトウ) |
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-非ポリマー , 2種, 2分子
#6: 化合物 | ChemComp-91Q / |
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#7: 化合物 | ChemComp-CLR / |
-詳細
研究の焦点であるリガンドがあるか | Y |
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-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 | 名称: 5-ht2c heterotrimeric complex (INI isoform) / タイプ: COMPLEX / Entity ID: #1-#5 / 由来: RECOMBINANT |
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由来(天然) | 生物種: Homo sapiens (ヒト) |
由来(組換発現) | 生物種: Baculovirus expression vector pFastBac1-HM (バキュロウイルス科) |
緩衝液 | pH: 7.4 |
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-PROPANE |
-電子顕微鏡撮影
実験機器 | モデル: Talos Arctica / 画像提供: FEI Company |
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顕微鏡 | モデル: FEI TALOS ARCTICA |
電子銃 | 電子線源: FIELD EMISSION GUN / 加速電圧: 200 kV / 照射モード: FLOOD BEAM |
電子レンズ | モード: BRIGHT FIELDBright-field microscopy / 最大 デフォーカス(公称値): 3691 nm / 最小 デフォーカス(公称値): 100 nm |
撮影 | 電子線照射量: 49.5 e/Å2 / フィルム・検出器のモデル: GATAN K3 (6k x 4k) |
-解析
ソフトウェア | 名称: PHENIX / バージョン: 1.19.2_4158: / 分類: 精密化 | ||||||||||||||||||||||||
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CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
3次元再構成 | 解像度: 3.6 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 1035840 / 対称性のタイプ: POINT | ||||||||||||||||||||||||
拘束条件 |
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