+データを開く
-基本情報
登録情報 | データベース: EMDB / ID: EMD-28185 | |||||||||
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タイトル | Structure of FFAR1-Gq complex bound to TAK-875 in a lipid nanodisc | |||||||||
マップデータ | ||||||||||
試料 |
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キーワード | FFAR1 / FFAs / diabetes / CryoEM / MEMBRANE PROTEIN | |||||||||
機能・相同性 | 機能・相同性情報 bioactive lipid receptor activity / Free fatty acid receptors / Fatty Acids bound to GPR40 (FFAR1) regulate insulin secretion / ion channel modulating, G protein-coupled receptor signaling pathway / Synthesis, secretion, and inactivation of Glucose-dependent Insulinotropic Polypeptide (GIP) / response to fatty acid / positive regulation of calcium ion transport / insulin secretion / negative regulation of interleukin-1 beta production / ligand-gated ion channel signaling pathway ...bioactive lipid receptor activity / Free fatty acid receptors / Fatty Acids bound to GPR40 (FFAR1) regulate insulin secretion / ion channel modulating, G protein-coupled receptor signaling pathway / Synthesis, secretion, and inactivation of Glucose-dependent Insulinotropic Polypeptide (GIP) / response to fatty acid / positive regulation of calcium ion transport / insulin secretion / negative regulation of interleukin-1 beta production / ligand-gated ion channel signaling pathway / G protein-coupled receptor activity / positive regulation of insulin secretion / 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-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 / glucose homeostasis / retina development in camera-type eye / Ca2+ pathway / phospholipase C-activating G protein-coupled receptor signaling pathway / positive regulation of cytosolic calcium ion concentration / G alpha (i) signalling events / fibroblast proliferation / G alpha (s) signalling events / 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 / lipid 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) | |||||||||
手法 | 単粒子再構成法 / クライオ電子顕微鏡法 / 解像度: 3.4 Å | |||||||||
データ登録者 | Kumari P / Inoue A / Chapman K / Lian P / Rosenbaum DM | |||||||||
資金援助 | 米国, 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: Molecular mechanism of fatty acid activation of FFAR1. 著者: Punita Kumari / Asuka Inoue / Karen Chapman / Peng Lian / Daniel M Rosenbaum / 要旨: FFAR1 is a G-protein-coupled receptor (GPCR) that responds to circulating free fatty acids to enhance glucose-stimulated insulin secretion and release of incretin hormones. Due to the glucose- ...FFAR1 is a G-protein-coupled receptor (GPCR) that responds to circulating free fatty acids to enhance glucose-stimulated insulin secretion and release of incretin hormones. Due to the glucose-lowering effect of FFAR1 activation, potent agonists for this receptor have been developed for the treatment of diabetes. Previous structural and biochemical studies of FFAR1 showed multiple sites of ligand binding to the inactive state but left the mechanism of fatty acid interaction and receptor activation unknown. We used cryo-electron microscopy to elucidate structures of activated FFAR1 bound to a G mimetic, which were induced either by the endogenous FFA ligand docosahexaenoic acid or γ-linolenic acid and the agonist drug TAK-875. Our data identify the orthosteric pocket for fatty acids and show how both endogenous hormones and synthetic agonists induce changes in helical packing along the outside of the receptor that propagate to exposure of the G-protein-coupling site. These structures show how FFAR1 functions without the highly conserved "DRY" and "NPXXY" motifs of class A GPCRs and also illustrate how the orthosteric site of a receptor can be bypassed by membrane-embedded drugs to confer full activation of G protein signaling. | |||||||||
履歴 |
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-構造の表示
添付画像 |
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-ダウンロードとリンク
-EMDBアーカイブ
マップデータ | emd_28185.map.gz | 33.2 MB | EMDBマップデータ形式 | |
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ヘッダ (付随情報) | emd-28185-v30.xml emd-28185.xml | 20.6 KB 20.6 KB | 表示 表示 | EMDBヘッダ |
FSC (解像度算出) | emd_28185_fsc.xml | 7.5 KB | 表示 | FSCデータファイル |
画像 | emd_28185.png | 39.3 KB | ||
Filedesc metadata | emd-28185.cif.gz | 6.8 KB | ||
その他 | emd_28185_half_map_1.map.gz emd_28185_half_map_2.map.gz | 27.2 MB 27.2 MB | ||
アーカイブディレクトリ | http://ftp.pdbj.org/pub/emdb/structures/EMD-28185 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-28185 | HTTPS FTP |
-検証レポート
文書・要旨 | emd_28185_validation.pdf.gz | 858.9 KB | 表示 | EMDB検証レポート |
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文書・詳細版 | emd_28185_full_validation.pdf.gz | 858.5 KB | 表示 | |
XML形式データ | emd_28185_validation.xml.gz | 13.1 KB | 表示 | |
CIF形式データ | emd_28185_validation.cif.gz | 18.2 KB | 表示 | |
アーカイブディレクトリ | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-28185 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-28185 | 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_28185.map.gz / 形式: CCP4 / 大きさ: 35.3 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: 1.07 Å | ||||||||||||||||||||||||||||||||||||
密度 |
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対称性 | 空間群: 1 | ||||||||||||||||||||||||||||||||||||
詳細 | EMDB XML:
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-添付データ
-ハーフマップ: #2
ファイル | emd_28185_half_map_1.map | ||||||||||||
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投影像・断面図 |
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密度ヒストグラム |
-ハーフマップ: #1
ファイル | emd_28185_half_map_2.map | ||||||||||||
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投影像・断面図 |
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密度ヒストグラム |
-試料の構成要素
-全体 : Free Fatty Acid Receptor1- G-Protein complex
全体 | 名称: Free Fatty Acid Receptor1- G-Protein complex |
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要素 |
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-超分子 #1: Free Fatty Acid Receptor1- G-Protein complex
超分子 | 名称: Free Fatty Acid Receptor1- G-Protein complex / タイプ: complex / ID: 1 / 親要素: 0 / 含まれる分子: #1-#5 |
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由来(天然) | 生物種: Homo sapiens (ヒト) |
-分子 #1: A modified Guanine nucleotide-binding protein G(q) subunit alpha
分子 | 名称: A modified Guanine nucleotide-binding protein G(q) subunit alpha タイプ: protein_or_peptide / ID: 1 / コピー数: 1 / 光学異性体: LEVO |
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由来(天然) | 生物種: Homo sapiens (ヒト) |
分子量 | 理論値: 27.638461 KDa |
組換発現 | 生物種: Spodoptera frugiperda (ツマジロクサヨトウ) |
配列 | 文字列: MGSTLSAEDK AAVERSKMID RNLREDGEKA RRTLRLLLLG ADNSGKSTIV KQMRILHTSG IFETKFQVDK VNFHMFDVGG QRDERRKWI QCFNDVTAII FVVDSSDYNR LQEALNDFKS IWNNRWLRTI SVILFLNKQD LLAEKVLAGK SKIEDYFPEF A RYTTPEDA ...文字列: MGSTLSAEDK AAVERSKMID RNLREDGEKA RRTLRLLLLG ADNSGKSTIV KQMRILHTSG IFETKFQVDK VNFHMFDVGG QRDERRKWI QCFNDVTAII FVVDSSDYNR LQEALNDFKS IWNNRWLRTI SVILFLNKQD LLAEKVLAGK SKIEDYFPEF A RYTTPEDA TPEPGEDPRV TRAKYFIRKE FVDISTASGD GRHICYPHFT CAVDTENARR IFNDCKDIIL QMNLREYNLV |
-分子 #2: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1
分子 | 名称: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1 タイプ: protein_or_peptide / ID: 2 / コピー数: 1 / 光学異性体: LEVO |
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由来(天然) | 生物種: Homo sapiens (ヒト) |
分子量 | 理論値: 37.41693 KDa |
組換発現 | 生物種: Spodoptera frugiperda (ツマジロクサヨトウ) |
配列 | 文字列: MSELDQLRQE AEQLKNQIRD ARKACADATL SQITNNIDPV GRIQMRTRRT LRGHLAKIYA MHWGTDSRLL VSASQDGKLI IWDSYTTNK VHAIPLRSSW VMTCAYAPSG NYVACGGLDN ICSIYNLKTR EGNVRVSREL AGHTGYLSCC RFLDDNQIVT S SGDTTCAL ...文字列: MSELDQLRQE AEQLKNQIRD ARKACADATL SQITNNIDPV GRIQMRTRRT LRGHLAKIYA MHWGTDSRLL VSASQDGKLI IWDSYTTNK VHAIPLRSSW VMTCAYAPSG NYVACGGLDN ICSIYNLKTR EGNVRVSREL AGHTGYLSCC RFLDDNQIVT S SGDTTCAL WDIETGQQTT TFTGHTGDVM SLSLAPDTRL FVSGACDASA KLWDVREGMC RQTFTGHESD INAICFFPNG NA FATGSDD ATCRLFDLRA DQELMTYSHD NIICGITSVS FSKSGRLLLA GYDDFNCNVW DALKADRAGV LAGHDNRVSC LGV TDDGMA VATGSWDSFL KIWN UniProtKB: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1 |
-分子 #3: Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2
分子 | 名称: Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2 タイプ: protein_or_peptide / ID: 3 / コピー数: 1 / 光学異性体: LEVO |
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由来(天然) | 生物種: Homo sapiens (ヒト) |
分子量 | 理論値: 9.137474 KDa |
組換発現 | 生物種: Spodoptera frugiperda (ツマジロクサヨトウ) |
配列 | 文字列: MGHHHHHHHH GGASNNTASI AQARKLVEQL KMEANIDRIK VSKAAADLMA YCEAHAKEDP LLTPVPASEN PFREKKFFCA IL UniProtKB: Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2 |
-分子 #4: scFv16
分子 | 名称: scFv16 / タイプ: protein_or_peptide / ID: 4 / コピー数: 1 / 光学異性体: LEVO |
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由来(天然) | 生物種: Homo sapiens (ヒト) |
分子量 | 理論値: 34.930852 KDa |
組換発現 | 生物種: Spodoptera frugiperda (ツマジロクサヨトウ) |
配列 | 文字列: MKFLVNVALV FMVVYISYIY ADSYYHHHHH HHHHHDYDIP TTENLYFQGA MGDVQLVESG GGLVQPGGSR KLSCSASGFA FSSFGMHWV RQAPEKGLEW VAYISSGSGT IYYADTVKGR FTISRDDPKN TLFLQMTSLR SEDTAMYYCV RSIYYYGSSP F DFWGQGTT ...文字列: MKFLVNVALV FMVVYISYIY ADSYYHHHHH HHHHHDYDIP TTENLYFQGA MGDVQLVESG GGLVQPGGSR KLSCSASGFA FSSFGMHWV RQAPEKGLEW VAYISSGSGT IYYADTVKGR FTISRDDPKN TLFLQMTSLR SEDTAMYYCV RSIYYYGSSP F DFWGQGTT LTVSSGGGGS GGGGSGGGGS DIVMTQATSS VPVTPGESVS ISCRSSKSLL HSNGNTYLYW FLQRPGQSPQ LL IYRMSNL ASGVPDRFSG SGSGTAFTLT ISRLEAEDVG VYYCMQHLEY PLTFGAGTKL ELKAAAENLY FQGHHHHHHH H |
-分子 #5: Free fatty acid receptor 1
分子 | 名称: Free fatty acid receptor 1 / タイプ: protein_or_peptide / ID: 5 / コピー数: 1 / 光学異性体: LEVO |
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由来(天然) | 生物種: Homo sapiens (ヒト) |
分子量 | 理論値: 54.298785 KDa |
組換発現 | 生物種: Spodoptera frugiperda (ツマジロクサヨトウ) |
配列 | 文字列: MGKTIIALSY IFCLVFADYK DDDDAENLYF QGNIFEMLRI DEGLRLKIYK DTEGYYTIGI GHLLTKSPSL NAAKSELDKA IGRNTNGVI TKDEAEKLFN QDVDAAVRGI LRNAKLKPVY DSLDAVRRAA LINMVFQMGE TGVAGFTNSL RMLQQKRWDE A AVNLAKSR ...文字列: MGKTIIALSY IFCLVFADYK DDDDAENLYF QGNIFEMLRI DEGLRLKIYK DTEGYYTIGI GHLLTKSPSL NAAKSELDKA IGRNTNGVI TKDEAEKLFN QDVDAAVRGI LRNAKLKPVY DSLDAVRRAA LINMVFQMGE TGVAGFTNSL RMLQQKRWDE A AVNLAKSR WYNQTPNRAK RVITTFRTGT WDAYLEVLFQ GPEFDLPPQL SFGLYVAAFA LGFPLNVLAI RGATAHARLR LT PSLVYAL NLGCSDLLLT VSLPLKAVEA LASGAWPLPA SLCPVFAVAH FFPLYAGGGF LAALSAGRYL GAAFPLGYQA FRR PCYSWG VCAAIWALVL CHLGLVFGLE APGGWLDHSN TSLGINTPVN GSPVCLEAWD PASAGPARFS LSLLLFFLPL AITA FCYVG CLRALARSGL THRRKLRAAW VAGGALLTLL LCVGPYNASN VASFLYPNLG GSWRKLGLIT GAWSVVLNPL VTGYL GRGP GLKTVCAART QGGKSQK UniProtKB: Free fatty acid receptor 1 |
-分子 #6: [(3S)-6-({2',6'-dimethyl-4'-[3-(methylsulfonyl)propoxy]biphenyl-3...
分子 | 名称: [(3S)-6-({2',6'-dimethyl-4'-[3-(methylsulfonyl)propoxy]biphenyl-3-yl}methoxy)-2,3-dihydro-1-benzofuran-3-yl]acetic acid タイプ: ligand / ID: 6 / コピー数: 1 / 式: 2YB |
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分子量 | 理論値: 524.625 Da |
Chemical component information | ChemComp-2YB: |
-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 | 5 mg/mL | ||||||||||||||||||
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緩衝液 | pH: 7.5 構成要素:
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凍結 | 凍結剤: ETHANE / 装置: FEI VITROBOT MARK IV |
-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 K3 BIOQUANTUM (6k x 4k) 平均電子線量: 1.0 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 / 最大 デフォーカス(公称値): 2.4 µm 最小 デフォーカス(公称値): 1.4000000000000001 µm |
実験機器 | モデル: Titan Krios / 画像提供: FEI Company |