+データを開く
-基本情報
登録情報 | データベース: EMDB / ID: EMD-37504 | ||||||||||||||||||||||||
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タイトル | Cryo-EM structures of peptide free and Gs-coupled GLP-1R | ||||||||||||||||||||||||
マップデータ | |||||||||||||||||||||||||
試料 |
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キーワード | G protein-coupled receptor / ligand recognition / receptor activation / unimolecular agonist / MEMBRANE PROTEIN | ||||||||||||||||||||||||
機能・相同性 | 機能・相同性情報 glucagon-like peptide 1 receptor activity / glucagon receptor activity / hormone secretion / positive regulation of blood pressure / 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 ...glucagon-like peptide 1 receptor activity / glucagon receptor activity / hormone secretion / positive regulation of blood pressure / 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 / post-translational protein targeting to membrane, translocation / 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) / G alpha (i) signalling events / alkylglycerophosphoethanolamine phosphodiesterase activity / 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 (12/13) signalling events / G beta:gamma signalling through BTK / ADP signalling through P2Y purinoceptor 12 / Adrenaline,noradrenaline inhibits insulin secretion / 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 / regulation of heart contraction / Glucagon-like Peptide-1 (GLP1) regulates insulin secretion / G alpha (i) signalling events / spectrin binding / response to psychosocial stress / Vasopressin regulates renal water homeostasis via Aquaporins / PKA activation in glucagon signalling / peptide hormone binding / hair follicle placode formation / developmental growth / photoreceptor outer segment / D1 dopamine receptor binding / intracellular transport / renal water homeostasis / Hedgehog 'off' state / adenylate cyclase-activating adrenergic receptor signaling pathway / activation of adenylate cyclase activity / cardiac muscle cell apoptotic process / cellular response to glucagon stimulus / cAMP-mediated signaling / negative regulation of blood pressure / adenylate cyclase activator activity / regulation of insulin secretion / photoreceptor inner segment / trans-Golgi network membrane / negative regulation of inflammatory response to antigenic stimulus / bone development / G-protein beta/gamma-subunit complex binding / adenylate cyclase-activating G protein-coupled receptor signaling pathway / G protein activity / platelet aggregation / Prostacyclin signalling through prostacyclin receptor / Glucagon signaling in metabolic regulation / cognition / Glucagon-type ligand receptors / 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 / adenylate cyclase-activating dopamine receptor signaling pathway / GPER1 signaling / cellular response to prostaglandin E stimulus / G-protein beta-subunit binding / transmembrane signaling receptor activity / heterotrimeric G-protein complex / sensory perception of smell / signaling receptor complex adaptor activity / GTPase binding / positive regulation of cold-induced thermogenesis / retina development in camera-type eye 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 | 単粒子再構成法 / クライオ電子顕微鏡法 / 解像度: 2.54 Å | ||||||||||||||||||||||||
データ登録者 | Cong ZT / Zhao FH / Li Y / Luo G / Zhou QT / Yang DH / Wang MW | ||||||||||||||||||||||||
資金援助 | 中国, 7件
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引用 | ジャーナル: Cell Discov / 年: 2024 タイトル: Molecular features of the ligand-free GLP-1R, GCGR and GIPR in complex with G proteins. 著者: Zhaotong Cong / Fenghui Zhao / Yang Li / Gan Luo / Yiting Mai / Xianyue Chen / Yanyan Chen / Shi Lin / Xiaoqing Cai / Qingtong Zhou / Dehua Yang / Ming-Wei Wang / 要旨: Class B1 G protein-coupled receptors (GPCRs) are important regulators of many physiological functions such as glucose homeostasis, which is mainly mediated by three peptide hormones, i.e., glucagon- ...Class B1 G protein-coupled receptors (GPCRs) are important regulators of many physiological functions such as glucose homeostasis, which is mainly mediated by three peptide hormones, i.e., glucagon-like peptide-1 (GLP-1), glucagon (GCG), and glucose-dependent insulinotropic polypeptide (GIP). They trigger a cascade of signaling events leading to the formation of an active agonist-receptor-G protein complex. However, intracellular signal transducers can also activate the receptor independent of extracellular stimuli, suggesting an intrinsic role of G proteins in this process. Here, we report cryo-electron microscopy structures of the human GLP-1 receptor (GLP-1R), GCG receptor (GCGR), and GIP receptor (GIPR) in complex with G proteins without the presence of cognate ligands. These ligand-free complexes share a similar intracellular architecture to those bound by endogenous peptides, in which, the G protein alone directly opens the intracellular binding cavity and rewires the extracellular orthosteric pocket to stabilize the receptor in a state unseen before. While the peptide-binding site is partially occupied by the inward folded transmembrane helix 6 (TM6)-extracellular loop 3 (ECL3) juncture of GIPR or a segment of GCGR ECL2, the extracellular portion of GLP-1R adopts a conformation close to the active state. Our findings offer valuable insights into the distinct activation mechanisms of these three important receptors. It is possible that in the absence of a ligand, the intracellular half of transmembrane domain is mobilized with the help of G protein, which in turn rearranges the extracellular half to form a transitional conformation, facilitating the entry of the peptide N-terminus. | ||||||||||||||||||||||||
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_37504.map.gz | 33.1 MB | EMDBマップデータ形式 | |
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ヘッダ (付随情報) | emd-37504-v30.xml emd-37504.xml | 20.3 KB 20.3 KB | 表示 表示 | EMDBヘッダ |
画像 | emd_37504.png | 24.7 KB | ||
Filedesc metadata | emd-37504.cif.gz | 6.4 KB | ||
その他 | emd_37504_half_map_1.map.gz emd_37504_half_map_2.map.gz | 59.4 MB 59.4 MB | ||
アーカイブディレクトリ | http://ftp.pdbj.org/pub/emdb/structures/EMD-37504 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-37504 | HTTPS FTP |
-検証レポート
文書・要旨 | emd_37504_validation.pdf.gz | 698.8 KB | 表示 | EMDB検証レポート |
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文書・詳細版 | emd_37504_full_validation.pdf.gz | 698.4 KB | 表示 | |
XML形式データ | emd_37504_validation.xml.gz | 12.1 KB | 表示 | |
CIF形式データ | emd_37504_validation.cif.gz | 14.4 KB | 表示 | |
アーカイブディレクトリ | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-37504 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-37504 | 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_37504.map.gz / 形式: CCP4 / 大きさ: 64 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: 1.071 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: #1
ファイル | emd_37504_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: #2
ファイル | emd_37504_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 : Cryo-EM structure of the human glucagon like peptide 1 receptor i...
全体 | 名称: Cryo-EM structure of the human glucagon like peptide 1 receptor in complex with tirzepatide and G protein |
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要素 |
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-超分子 #1: Cryo-EM structure of the human glucagon like peptide 1 receptor i...
超分子 | 名称: Cryo-EM structure of the human glucagon like peptide 1 receptor in complex with tirzepatide and G protein タイプ: complex / ID: 1 / 親要素: 0 / 含まれる分子: all |
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由来(天然) | 生物種: Homo sapiens (ヒト) |
-分子 #1: Guanine nucleotide-binding protein G(s) subunit alpha isoforms short
分子 | 名称: Guanine nucleotide-binding protein G(s) subunit alpha isoforms short 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: 45.683434 KDa |
組換発現 | 生物種: Spodoptera frugiperda (ツマジロクサヨトウ) |
配列 | 文字列: MGCLGNSKTE DQRNEEKAQR EANKKIEKQL QKDKQVYRAT HRLLLLGAGE SGKNTIVKQM RILHVNGFNG EGGEEDPQAA RSNSDGEKA TKVQDIKNNL KEAIETIVAA MSNLVPPVEL ANPENQFRVD YILSVMNVPD FDFPPEFYEH AKALWEDEGV R ACYERSNE ...文字列: MGCLGNSKTE DQRNEEKAQR EANKKIEKQL QKDKQVYRAT HRLLLLGAGE SGKNTIVKQM RILHVNGFNG EGGEEDPQAA RSNSDGEKA TKVQDIKNNL KEAIETIVAA MSNLVPPVEL ANPENQFRVD YILSVMNVPD FDFPPEFYEH AKALWEDEGV R ACYERSNE YQLIDCAQYF LDKIDVIKQA DYVPSDQDLL RCRVLTSGIF ETKFQVDKVN FHMFDVGAQR DERRKWIQCF ND VTAIIFV VASSSYNMVI REDNQTNRLQ AALKLFDSIW NNKWLRDTSV ILFLNKQDLL AEKVLAGKSK IEDYFPEFAR YTT PEDATP EPGEDPRVTR AKYFIRDEFL RISTASGDGR HYCYPHFTCA VDTENIRRVF NDCRDIIQRM HLRQYELL UniProtKB: Guanine nucleotide-binding protein G(s) subunit alpha isoforms short |
-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: Rattus norvegicus (ドブネズミ) |
分子量 | 理論値: 40.226992 KDa |
組換発現 | 生物種: Spodoptera frugiperda (ツマジロクサヨトウ) |
配列 | 文字列: MGSLLQSELD QLRQEAEQLK NQIRDARKAC ADATLSQITN NIDPVGRIQM RTRRTLRGHL AKIYAMHWGT DSRLLVSASQ DGKLIIWDS YTTNKVHAIP LRSSWVMTCA YAPSGNYVAC GGLDNICSIY NLKTREGNVR VSRELAGHTG YLSCCRFLDD N QIVTSSGD ...文字列: MGSLLQSELD QLRQEAEQLK NQIRDARKAC ADATLSQITN NIDPVGRIQM RTRRTLRGHL AKIYAMHWGT DSRLLVSASQ DGKLIIWDS YTTNKVHAIP LRSSWVMTCA YAPSGNYVAC GGLDNICSIY NLKTREGNVR VSRELAGHTG YLSCCRFLDD N QIVTSSGD TTCALWDIET GQQTTTFTGH TGDVMSLSLA PDTRLFVSGA CDASAKLWDV REGMCRQTFT GHESDINAIC FF PNGNAFA TGSDDATCRL FDLRADQELM TYSHDNIICG ITSVSFSKSG RLLLAGYDDF NCNVWDALKA DRAGVLAGHD NRV SCLGVT DDGMAVATGS WDSFLKIWNG SSGGGGSGGG GSSGVSGWRL FKKIS 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: Bos taurus (ウシ) |
分子量 | 理論値: 7.861143 KDa |
組換発現 | 生物種: Spodoptera frugiperda (ツマジロクサヨトウ) |
配列 | 文字列: MASNNTASIA QARKLVEQLK MEANIDRIKV SKAAADLMAY CEAHAKEDPL LTPVPASENP FREKKFFCAI L UniProtKB: Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2 |
-分子 #4: Nanobody-35
分子 | 名称: Nanobody-35 / 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: synthetic construct (人工物) |
分子量 | 理論値: 13.885439 KDa |
組換発現 | 生物種: Escherichia coli (大腸菌) |
配列 | 文字列: QVQLQESGGG LVQPGGSLRL SCAASGFTFS NYKMNWVRQA PGKGLEWVSD ISQSGASISY TGSVKGRFTI SRDNAKNTLY LQMNSLKPE DTAVYYCARC PAPFTRDCFD VTSTTYAYRG QGTQVTVSS |
-分子 #5: Glucagon-like peptide 1 receptor
分子 | 名称: Glucagon-like peptide 1 receptor / 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: 50.860801 KDa |
組換発現 | 生物種: Spodoptera frugiperda (ツマジロクサヨトウ) |
配列 | 文字列: RPQGATVSLW ETVQKWREYR RQCQRSLTED PPPATDLFCN RTFDEYACWP DGEPGSFVNV SCPWYLPWAS SVPQGHVYRF CTAEGLWLQ KDNSSLPWRD LSECEESKRG ERSSPEEQLL FLYIIYTVGY ALSFSALVIA SAILLGFRHL HCTRNYIHLN L FASFILRA ...文字列: RPQGATVSLW ETVQKWREYR RQCQRSLTED PPPATDLFCN RTFDEYACWP DGEPGSFVNV SCPWYLPWAS SVPQGHVYRF CTAEGLWLQ KDNSSLPWRD LSECEESKRG ERSSPEEQLL FLYIIYTVGY ALSFSALVIA SAILLGFRHL HCTRNYIHLN L FASFILRA LSVFIKDAAL KWMYSTAAQQ HQWDGLLSYQ DSLSCRLVFL LMQYCVAANY YWLLVEGVYL YTLLAFSVLS EQ WIFRLYV SIGWGVPLLF VVPWGIVKYL YEDEGCWTRN SNMNYWLIIR LPILFAIGVN FLIFVRVICI VVSKLKANLM CKT DIKCRL AKSTLTLIPL LGTHEVIFAF VMDEHARGTL RFIKLFTELS FTSFQGLMVA ILYCFVNNEV QLEFRKSWER WRLE HLHIQ RDSSMKPLKC PTSSLSSGAT AGSSMYTATC QASCS UniProtKB: Glucagon-like peptide 1 receptor |
-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
緩衝液 | pH: 7.4 |
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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 K3 (6k x 4k) / 平均電子線量: 80.0 e/Å2 |
電子線 | 加速電圧: 300 kV / 電子線源: OTHER |
電子光学系 | 照射モード: OTHER / 撮影モード: BRIGHT FIELD / 最大 デフォーカス(公称値): 2.2 µm / 最小 デフォーカス(公称値): 1.2 µm |
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: PDB ENTRY PDBモデル - PDB ID: |
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最終 再構成 | 解像度のタイプ: BY AUTHOR / 解像度: 2.54 Å / 解像度の算出法: OTHER / 使用した粒子像数: 674310 |
初期 角度割当 | タイプ: OTHER |
最終 角度割当 | タイプ: OTHER |