+データを開く
-基本情報
登録情報 | データベース: EMDB / ID: EMD-31461 | |||||||||
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タイトル | Cryo-EM structure of THIQ-MC4R-Gs_Nb35 complex | |||||||||
マップデータ | ||||||||||
試料 |
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キーワード | single particle / membrane protein / Class A G-protein-coupled receptors | |||||||||
機能・相同性 | 機能・相同性情報 regulation of eating behavior / melanocyte-stimulating hormone receptor activity / response to melanocyte-stimulating hormone / melanocortin receptor activity / regulation of grooming behavior / energy reserve metabolic process / feeding behavior / regulation of metabolic process / neuropeptide binding / insulin secretion ...regulation of eating behavior / melanocyte-stimulating hormone receptor activity / response to melanocyte-stimulating hormone / melanocortin receptor activity / regulation of grooming behavior / energy reserve metabolic process / feeding behavior / regulation of metabolic process / neuropeptide binding / insulin secretion / negative regulation of feeding behavior / diet induced thermogenesis / peptide hormone binding / positive regulation of bone resorption / Transcriptional and post-translational regulation of MITF-M expression and activity / Peptide ligand-binding receptors / response to insulin / Olfactory Signaling Pathway / adenylate cyclase-modulating G protein-coupled receptor 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 activation / 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 / 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 / cellular response to catecholamine stimulus / ADORA2B mediated anti-inflammatory cytokines production / 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 / Inactivation, recovery and regulation of the phototransduction cascade / G-protein beta-subunit binding / heterotrimeric G-protein complex / G alpha (12/13) signalling events / extracellular vesicle / signaling receptor complex adaptor activity / Thrombin signalling through proteinase activated receptors (PARs) / GTPase binding / 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 / G protein-coupled receptor signaling pathway / lysosomal membrane / GTPase activity / ubiquitin protein ligase binding / synapse / protein-containing complex binding / signal transduction / extracellular exosome / membrane / plasma membrane / cytosol / cytoplasm 類似検索 - 分子機能 | |||||||||
生物種 | Homo sapiens (ヒト) / synthetic construct (人工物) | |||||||||
手法 | 単粒子再構成法 / クライオ電子顕微鏡法 / 解像度: 3.1 Å | |||||||||
データ登録者 | Zhang H / Chen L | |||||||||
引用 | ジャーナル: Cell Res / 年: 2021 タイトル: Structural insights into ligand recognition and activation of the melanocortin-4 receptor. 著者: Huibing Zhang / Li-Nan Chen / Dehua Yang / Chunyou Mao / Qingya Shen / Wenbo Feng / Dan-Dan Shen / Antao Dai / Shanshan Xie / Yan Zhou / Jiao Qin / Jin-Peng Sun / Daniel H Scharf / Tingjun ...著者: Huibing Zhang / Li-Nan Chen / Dehua Yang / Chunyou Mao / Qingya Shen / Wenbo Feng / Dan-Dan Shen / Antao Dai / Shanshan Xie / Yan Zhou / Jiao Qin / Jin-Peng Sun / Daniel H Scharf / Tingjun Hou / Tianhua Zhou / Ming-Wei Wang / Yan Zhang / 要旨: Melanocortin-4 receptor (MC4R) plays a central role in the regulation of energy homeostasis. Its high sequence similarity to other MC receptor family members, low agonist selectivity and the lack of ...Melanocortin-4 receptor (MC4R) plays a central role in the regulation of energy homeostasis. Its high sequence similarity to other MC receptor family members, low agonist selectivity and the lack of structural information concerning MC4R-specific activation have hampered the development of MC4R-seletive therapeutics to treat obesity. Here, we report four high-resolution structures of full-length MC4R in complex with the heterotrimeric G protein stimulated by the endogenous peptide ligand α-MSH, FDA-approved drugs afamelanotide (Scenesse™) and bremelanotide (Vyleesi™), and a selective small-molecule ligand THIQ, respectively. Together with pharmacological studies, our results reveal the conserved binding mode of peptidic agonists, the distinctive molecular details of small-molecule agonist recognition underlying receptor subtype selectivity, and a distinct activation mechanism for MC4R, thereby offering new insights into G protein coupling. Our work may facilitate the discovery of selective therapeutic agents targeting MC4R. | |||||||||
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 | EMマップ: SurfViewMolmilJmol/JSmol |
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 | emd_31461.map.gz | 23.6 MB | EMDBマップデータ形式 | |
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ヘッダ (付随情報) | emd-31461-v30.xml emd-31461.xml | 19.2 KB 19.2 KB | 表示 表示 | EMDBヘッダ |
画像 | emd_31461.png | 65.4 KB | ||
Filedesc metadata | emd-31461.cif.gz | 6.6 KB | ||
アーカイブディレクトリ | http://ftp.pdbj.org/pub/emdb/structures/EMD-31461 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-31461 | HTTPS FTP |
-検証レポート
文書・要旨 | emd_31461_validation.pdf.gz | 512.9 KB | 表示 | EMDB検証レポート |
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文書・詳細版 | emd_31461_full_validation.pdf.gz | 512.4 KB | 表示 | |
XML形式データ | emd_31461_validation.xml.gz | 5.6 KB | 表示 | |
CIF形式データ | emd_31461_validation.cif.gz | 6.4 KB | 表示 | |
アーカイブディレクトリ | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-31461 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-31461 | HTTPS FTP |
-関連構造データ
-リンク
EMDBのページ | EMDB (EBI/PDBe) / EMDataResource |
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「今月の分子」の関連する項目 |
-マップ
ファイル | ダウンロード / ファイル: emd_31461.map.gz / 形式: CCP4 / 大きさ: 27 MB / タイプ: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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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: 1.014 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
密度 |
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対称性 | 空間群: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
詳細 | EMDB XML:
CCP4マップ ヘッダ情報:
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-添付データ
-試料の構成要素
+全体 : Complex of THIQ bound MC4R-Gs protein
+超分子 #1: Complex of THIQ bound MC4R-Gs protein
+超分子 #2: melanocrotin-4 receptor
+超分子 #3: Dominant Negative Guanine nucleotide-binding protein G(s) subunit...
+超分子 #4: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1
+超分子 #5: Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2
+超分子 #6: Nanobody35
+分子 #1: Melanocortin receptor 4
+分子 #2: Isoform Gnas-2 of Guanine nucleotide-binding protein G(s) subunit...
+分子 #3: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1
+分子 #4: Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2
+分子 #5: Nanobody35
+分子 #6: (3R)-N-[(2R)-3-(4-chlorophenyl)-1-[4-cyclohexyl-4-(1,2,4-triazol-...
+分子 #7: CALCIUM ION
+分子 #8: water
-実験情報
-構造解析
手法 | クライオ電子顕微鏡法 |
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解析 | 単粒子再構成法 |
試料の集合状態 | particle |
-試料調製
濃度 | 4 mg/mL |
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緩衝液 | pH: 7.5 |
凍結 | 凍結剤: ETHANE |
-電子顕微鏡法
顕微鏡 | FEI TITAN KRIOS |
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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: 62.0 e/Å2 |
電子線 | 加速電圧: 300 kV / 電子線源: FIELD EMISSION GUN |
電子光学系 | 照射モード: FLOOD BEAM / 撮影モード: BRIGHT FIELD |
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: EMDB MAP EMDB ID: |
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最終 再構成 | 解像度のタイプ: BY AUTHOR / 解像度: 3.1 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 使用した粒子像数: 269832 |
初期 角度割当 | タイプ: RANDOM ASSIGNMENT |
最終 角度割当 | タイプ: MAXIMUM LIKELIHOOD |