+データを開く
-基本情報
登録情報 | データベース: PDB / ID: 7vgz | ||||||
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タイトル | MT1-remalteon-Gi complex | ||||||
要素 |
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キーワード | MEMBRANE PROTEIN / G protein coupled receptor | ||||||
機能・相同性 | 機能・相同性情報 melatonin receptor activity / hormone binding / organic cyclic compound binding / Class A/1 (Rhodopsin-like receptors) / G-protein activation / Activation of the phototransduction cascade / Glucagon-type ligand receptors / Thromboxane signalling through TP receptor / Sensory perception of sweet, bitter, and umami (glutamate) taste / G beta:gamma signalling through PI3Kgamma ...melatonin receptor activity / hormone binding / organic cyclic compound binding / Class A/1 (Rhodopsin-like receptors) / G-protein activation / Activation of the phototransduction cascade / Glucagon-type ligand receptors / Thromboxane signalling through TP receptor / Sensory perception of sweet, bitter, and umami (glutamate) taste / G beta:gamma signalling through PI3Kgamma / G beta:gamma signalling through CDC42 / Cooperation of PDCL (PhLP1) and TRiC/CCT in G-protein beta folding / Activation of G protein gated Potassium channels / Inhibition of voltage gated Ca2+ channels via Gbeta/gamma subunits / Ca2+ pathway / G alpha (z) signalling events / Vasopressin regulates renal water homeostasis via Aquaporins / Glucagon-like Peptide-1 (GLP1) regulates insulin secretion / Adrenaline,noradrenaline inhibits insulin secretion / ADP signalling through P2Y purinoceptor 12 / G alpha (q) signalling events / Thrombin signalling through proteinase activated receptors (PARs) / Activation of G protein gated Potassium channels / G-protein activation / G beta:gamma signalling through PI3Kgamma / Prostacyclin signalling through prostacyclin receptor / G beta:gamma signalling through PLC beta / ADP signalling through P2Y purinoceptor 1 / Thromboxane signalling through TP receptor / Presynaptic function of Kainate receptors / G beta:gamma signalling through CDC42 / Inhibition of voltage gated Ca2+ channels via Gbeta/gamma subunits / Glucagon-type ligand receptors / G alpha (i) signalling events / G alpha (12/13) signalling events / G beta:gamma signalling through BTK / ADP signalling through P2Y purinoceptor 12 / Adrenaline,noradrenaline inhibits insulin secretion / alkylglycerophosphoethanolamine phosphodiesterase activity / mating behavior / Cooperation of PDCL (PhLP1) and TRiC/CCT in G-protein beta folding / Thrombin signalling through proteinase activated receptors (PARs) / Ca2+ pathway / Extra-nuclear estrogen signaling / G alpha (z) signalling events / G alpha (s) signalling events / G alpha (q) signalling events / photoreceptor outer segment membrane / G alpha (i) signalling events / Glucagon-like Peptide-1 (GLP1) regulates insulin secretion / spectrin binding / Vasopressin regulates renal water homeostasis via Aquaporins / G protein-coupled receptor signaling pathway, coupled to cyclic nucleotide second messenger / photoreceptor outer segment / T cell migration / D2 dopamine receptor binding / Adenylate cyclase inhibitory pathway / positive regulation of protein localization to cell cortex / regulation of cAMP-mediated signaling / G protein-coupled serotonin receptor binding / cellular response to forskolin / regulation of mitotic spindle organization / cardiac muscle cell apoptotic process / photoreceptor inner segment / adenylate cyclase-inhibiting G protein-coupled receptor signaling pathway / Regulation of insulin secretion / G protein-coupled receptor binding / G protein-coupled receptor activity / G-protein beta/gamma-subunit complex binding / adenylate cyclase-modulating G protein-coupled receptor signaling pathway / response to peptide hormone / ADP signalling through P2Y purinoceptor 12 / Adrenaline,noradrenaline inhibits insulin secretion / G alpha (z) signalling events / circadian rhythm / ADORA2B mediated anti-inflammatory cytokines production / cellular response to catecholamine stimulus / sensory perception of taste / adenylate cyclase-activating dopamine receptor signaling pathway / GPER1 signaling / GDP binding / cellular response to prostaglandin E stimulus / G-protein beta-subunit binding / heterotrimeric G-protein complex / signaling receptor complex adaptor activity / GTPase binding / retina development in camera-type eye / cell cortex / phospholipase C-activating G protein-coupled receptor signaling pathway / positive regulation of cytosolic calcium ion concentration / cellular response to hypoxia / midbody / cell body / G alpha (i) signalling events / 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 / cell population proliferation / Extra-nuclear estrogen signaling / receptor complex / G protein-coupled receptor signaling pathway 類似検索 - 分子機能 | ||||||
生物種 | Homo sapiens (ヒト) Rattus norvegicus (ドブネズミ) Bos taurus (ウシ) synthetic construct (人工物) | ||||||
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: 3.3 Å | ||||||
データ登録者 | Wang, Q.G. / Lu, Q.Y. | ||||||
資金援助 | 中国, 1件
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引用 | ジャーナル: Nat Commun / 年: 2022 タイトル: Structural basis of the ligand binding and signaling mechanism of melatonin receptors. 著者: Qinggong Wang / Qiuyuan Lu / Qiong Guo / Maikun Teng / Qingguo Gong / Xu Li / Yang Du / Zheng Liu / Yuyong Tao / 要旨: Melatonin receptors (MT and MT in humans) are family A G protein-coupled receptors that respond to the neurohormone melatonin to regulate circadian rhythm and sleep. Numerous efforts have been made ...Melatonin receptors (MT and MT in humans) are family A G protein-coupled receptors that respond to the neurohormone melatonin to regulate circadian rhythm and sleep. Numerous efforts have been made to develop drugs targeting melatonin receptors for the treatment of insomnia, circadian rhythm disorder, and cancer. However, designing subtype-selective melatonergic drugs remains challenging. Here, we report the cryo-EM structures of the MT-G signaling complex with 2-iodomelatonin and ramelteon and the MT-G signaling complex with ramelteon. These structures, together with the reported functional data, reveal that although MT and MT possess highly similar orthosteric ligand-binding pockets, they also display distinctive features that could be targeted to design subtype-selective drugs. The unique structural motifs in MT and MT mediate structural rearrangements with a particularly wide opening on the cytoplasmic side. G is engaged in the receptor core shared by MT and MT and presents a conformation deviating from those in other G complexes. Together, our results provide new clues for designing melatonergic drugs and further insights into understanding the G protein coupling mechanism. | ||||||
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 | 7vgz.cif.gz | 227.1 KB | 表示 | PDBx/mmCIF形式 |
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PDB形式 | pdb7vgz.ent.gz | 178 KB | 表示 | PDB形式 |
PDBx/mmJSON形式 | 7vgz.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 | 7vgz_validation.pdf.gz | 944.6 KB | 表示 | wwPDB検証レポート |
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文書・詳細版 | 7vgz_full_validation.pdf.gz | 958.7 KB | 表示 | |
XML形式データ | 7vgz_validation.xml.gz | 36.7 KB | 表示 | |
CIF形式データ | 7vgz_validation.cif.gz | 55.7 KB | 表示 | |
アーカイブディレクトリ | https://data.pdbj.org/pub/pdb/validation_reports/vg/7vgz ftp://data.pdbj.org/pub/pdb/validation_reports/vg/7vgz | 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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1 |
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-要素
-Guanine nucleotide-binding protein ... , 3種, 3分子 CDE
#2: タンパク質 | 分子量: 40283.836 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: GNAI1 発現宿主: Spodoptera frugiperda (ツマジロクサヨトウ) 参照: UniProt: P63096 |
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#3: タンパク質 | 分子量: 37728.152 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) Rattus norvegicus (ドブネズミ) / 遺伝子: Gnb1 発現宿主: Spodoptera frugiperda (ツマジロクサヨトウ) 参照: UniProt: P54311 |
#4: タンパク質 | 分子量: 7432.554 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) Bos taurus (ウシ) / 遺伝子: GNG2 発現宿主: Spodoptera frugiperda (ツマジロクサヨトウ) 参照: UniProt: P63212 |
-タンパク質 / 抗体 , 2種, 2分子 BF
#1: タンパク質 | 分子量: 39408.594 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: MTNR1A 発現宿主: Spodoptera frugiperda (ツマジロクサヨトウ) 参照: UniProt: P48039 |
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#5: 抗体 | 分子量: 27340.482 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) synthetic construct (人工物) 発現宿主: Spodoptera frugiperda (ツマジロクサヨトウ) |
-非ポリマー , 2種, 2分子
#6: 化合物 | ChemComp-JEV / |
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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: GPCR-G protein complex / タイプ: COMPLEX / Entity ID: #1-#5 / 由来: MULTIPLE SOURCES |
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由来(天然) | 生物種: Homo sapiens (ヒト) |
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 FIELD / 最大 デフォーカス(公称値): 2000 nm / 最小 デフォーカス(公称値): 1200 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 (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: 3.3 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 2074844 / 対称性のタイプ: POINT | ||||||||||||||||||||||||
拘束条件 |
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