+データを開く
-基本情報
登録情報 | データベース: PDB / ID: 7ys6 | ||||||
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タイトル | Cryo-EM structure of the Serotonin 6 (5-HT6) receptor-DNGs-scFv16 complex | ||||||
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) / serotonin receptor (セロトニン受容体) / 5-HT6R / cryo-EM (低温電子顕微鏡法) / constitutive activity (受容体) | ||||||
機能・相同性 | 機能・相同性情報 histamine receptor activity / セロトニン受容体 / G protein-coupled serotonin receptor activity / neurotransmitter receptor activity / cerebral cortex cell migration / G protein-coupled receptor signaling pathway, coupled to cyclic nucleotide second messenger / positive regulation of TOR signaling / Olfactory Signaling Pathway / Activation of the phototransduction cascade / G beta:gamma signalling through PLC beta ...histamine receptor activity / セロトニン受容体 / G protein-coupled serotonin receptor activity / neurotransmitter receptor activity / cerebral cortex cell migration / G protein-coupled receptor signaling pathway, coupled to cyclic nucleotide second messenger / positive regulation of TOR signaling / 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 / 繊毛 / 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 / ADORA2B mediated anti-inflammatory cytokines production / adenylate cyclase-activating dopamine receptor signaling pathway / ADP signalling through P2Y purinoceptor 1 / G beta:gamma signalling through PI3Kgamma / cellular response to prostaglandin E stimulus / Cooperation of PDCL (PhLP1) and TRiC/CCT in G-protein beta folding / sensory perception of taste / 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 / Ca2+ pathway / phospholipase C-activating G protein-coupled receptor signaling pathway / G alpha (i) signalling events / fibroblast proliferation / G alpha (s) signalling events / chemical synaptic transmission / G alpha (q) signalling events / Ras protein signal transduction / cell population proliferation / Extra-nuclear estrogen signaling / G protein-coupled receptor signaling pathway / lysosomal membrane / GTPase activity / 樹状突起 / シナプス / protein-containing complex binding / シグナル伝達 / extracellular exosome / 生体膜 / 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) Mus musculus (ハツカネズミ) | ||||||
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 | ||||||
データ登録者 | Zhao, Q.Y. / Wang, Y.F. / He, L. / Wang, S. / Cong, Y. | ||||||
資金援助 | 中国, 1件
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引用 | ジャーナル: Proc Natl Acad Sci U S A / 年: 2023 タイトル: Structural insights into constitutive activity of 5-HT receptor. 著者: Licong He / Qiaoyu Zhao / Jianzhong Qi / Yifan Wang / Wenyu Han / Zhangcheng Chen / Yao Cong / Sheng Wang / 要旨: While most therapeutic research on G-protein-coupled receptors (GPCRs) focuses on receptor activation by (endogenous) agonists, significant therapeutic potential exists through agonist-independent ...While most therapeutic research on G-protein-coupled receptors (GPCRs) focuses on receptor activation by (endogenous) agonists, significant therapeutic potential exists through agonist-independent intrinsic constitutive activity that can occur in various physiological and pathophysiological settings. For example, inhibiting the constitutive activity of 5-HTR-a receptor that is found almost exclusively in the brain and mediates excitatory neurotransmission-has demonstrated a therapeutic effect on cognitive/memory impairment associated with several neuropsychiatric disorders. However, the structural basis of such constitutive activity remains unclear. Here, we present a cryo-EM structure of serotonin-bound human 5-HTR-Gs heterotrimer at 3.0-Å resolution. Detailed analyses of the structure complemented by comprehensive interrogation of signaling illuminate key structural determinants essential for constitutive 5-HTR activity. Additional structure-guided mutagenesis leads to a nanobody mimic Gαs for 5-HTR that can reduce its constitutive activity. Given the importance of 5-HTR for a large number of neuropsychiatric disorders, insights derived from these studies will accelerate the design of more effective medications, and shed light on the molecular basis of constitutive activity. | ||||||
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 | 7ys6.cif.gz | 232.9 KB | 表示 | PDBx/mmCIF形式 |
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PDB形式 | pdb7ys6.ent.gz | 179.3 KB | 表示 | PDB形式 |
PDBx/mmJSON形式 | 7ys6.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/ys/7ys6 ftp://data.pdbj.org/pub/pdb/validation_reports/ys/7ys6 | HTTPS FTP |
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-関連構造データ
関連構造データ | 34073MC 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 (文献) |
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類似構造データ | 類似検索 - 機能・相同性F&H 検索 |
-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: 33201.918 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: HTR6 / 発現宿主: Insecta environmental sample (昆虫) / 参照: UniProt: P50406 |
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#5: タンパク質 | 分子量: 43385.246 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 / 発現宿主: Insecta environmental sample (昆虫) / 参照: UniProt: P63092-2 |
-Guanine nucleotide-binding protein ... , 2種, 2分子 CD
#2: タンパク質 | 分子量: 39385.957 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: Insecta environmental sample (昆虫) / 参照: UniProt: P62873 |
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#3: 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: Insecta environmental sample (昆虫) / 参照: UniProt: P59768 |
-抗体 / 非ポリマー , 2種, 2分子 E
#4: 抗体 | 分子量: 28636.793 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) Mus musculus (ハツカネズミ) / 発現宿主: Insecta environmental sample (昆虫) |
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#6: 化合物 | ChemComp-SRO / |
-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: Serotonin 6 (5-HT6) receptor-DNGs-scFv16 complex / 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: Insecta environmental sample (昆虫) |
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 |
-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 FIELDBright-field microscopy / 最大 デフォーカス(公称値): 2000 nm / 最小 デフォーカス(公称値): 800 nm |
撮影 | 電子線照射量: 50.2 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: 1.20rc1_4392: / 分類: 精密化 | ||||||||||||||||||||||||
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CTF補正 | タイプ: NONE | ||||||||||||||||||||||||
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: 388504 / 対称性のタイプ: POINT | ||||||||||||||||||||||||
拘束条件 |
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